Merge pull request #17796 from epiclabs-io/mru-feeds

swarm/storage/feeds: Renamed MRU to Swarm Feeds

.github/CODEOWNERS

@@ -27,6 +27,6 @@ swarm/services                  @zelig
 swarm/state                     @justelad
 swarm/storage/encryption        @gbalint @zelig @nagydani
 swarm/storage/mock              @janos
-swarm/storage/mru               @nolash
+swarm/storage/feed              @nolash @jpeletier
 swarm/testutil                  @lmars
 whisper/                        @gballet @gluk256

cmd/swarm/mru.go → cmd/swarm/feeds.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
 
-// Command resource allows the user to create and update signed mutable resource updates
+// Command feed allows the user to create and update signed Swarm feeds
 package main
 
 import (
@@ -27,17 +27,17 @@ import (
 
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	swarm "github.com/ethereum/go-ethereum/swarm/api/client"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed"
 	"gopkg.in/urfave/cli.v1"
 )
 
-func NewGenericSigner(ctx *cli.Context) mru.Signer {
-	return mru.NewGenericSigner(getPrivKey(ctx))
+func NewGenericSigner(ctx *cli.Context) feed.Signer {
+	return feed.NewGenericSigner(getPrivKey(ctx))
 }
 
-func getTopic(ctx *cli.Context) (topic mru.Topic) {
-	var name = ctx.String(SwarmResourceNameFlag.Name)
-	var relatedTopic = ctx.String(SwarmResourceTopicFlag.Name)
+func getTopic(ctx *cli.Context) (topic feed.Topic) {
+	var name = ctx.String(SwarmFeedNameFlag.Name)
+	var relatedTopic = ctx.String(SwarmFeedTopicFlag.Name)
 	var relatedTopicBytes []byte
 	var err error
 
@@ -48,42 +48,42 @@ func getTopic(ctx *cli.Context) (topic mru.Topic) {
 		}
 	}
 
-	topic, err = mru.NewTopic(name, relatedTopicBytes)
+	topic, err = feed.NewTopic(name, relatedTopicBytes)
 	if err != nil {
 		utils.Fatalf("Error parsing topic: %s", err)
 	}
 	return topic
 }
 
-// swarm resource create <frequency> [--name <name>] [--data <0x Hexdata> [--multihash=false]]
-// swarm resource update <Manifest Address or ENS domain> <0x Hexdata> [--multihash=false]
-// swarm resource info <Manifest Address or ENS domain>
+// swarm feed create <frequency> [--name <name>] [--data <0x Hexdata> [--multihash=false]]
+// swarm feed update <Manifest Address or ENS domain> <0x Hexdata> [--multihash=false]
+// swarm feed info <Manifest Address or ENS domain>
 
-func resourceCreate(ctx *cli.Context) {
+func feedCreateManifest(ctx *cli.Context) {
 	var (
 		bzzapi = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
 		client = swarm.NewClient(bzzapi)
 	)
 
-	newResourceRequest := mru.NewFirstRequest(getTopic(ctx))
-	newResourceRequest.View.User = resourceGetUser(ctx)
+	newFeedUpdateRequest := feed.NewFirstRequest(getTopic(ctx))
+	newFeedUpdateRequest.Feed.User = feedGetUser(ctx)
 
-	manifestAddress, err := client.CreateResource(newResourceRequest)
+	manifestAddress, err := client.CreateFeedWithManifest(newFeedUpdateRequest)
 	if err != nil {
-		utils.Fatalf("Error creating resource: %s", err.Error())
+		utils.Fatalf("Error creating feed manifest: %s", err.Error())
 		return
 	}
 	fmt.Println(manifestAddress) // output manifest address to the user in a single line (useful for other commands to pick up)
 
 }
 
-func resourceUpdate(ctx *cli.Context) {
+func feedUpdate(ctx *cli.Context) {
 	args := ctx.Args()
 
 	var (
 		bzzapi                  = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
 		client                  = swarm.NewClient(bzzapi)
-		manifestAddressOrDomain = ctx.String(SwarmResourceManifestFlag.Name)
+		manifestAddressOrDomain = ctx.String(SwarmFeedManifestFlag.Name)
 	)
 
 	if len(args) < 1 {
@@ -100,20 +100,20 @@ func resourceUpdate(ctx *cli.Context) {
 		return
 	}
 
-	var updateRequest *mru.Request
-	var query *mru.Query
+	var updateRequest *feed.Request
+	var query *feed.Query
 
 	if manifestAddressOrDomain == "" {
-		query = new(mru.Query)
+		query = new(feed.Query)
 		query.User = signer.Address()
 		query.Topic = getTopic(ctx)
 
 	}
 
-	// Retrieve resource status and metadata out of the manifest
-	updateRequest, err = client.GetResourceMetadata(query, manifestAddressOrDomain)
+	// Retrieve a feed update request
+	updateRequest, err = client.GetFeedRequest(query, manifestAddressOrDomain)
 	if err != nil {
-		utils.Fatalf("Error retrieving resource status: %s", err.Error())
+		utils.Fatalf("Error retrieving feed status: %s", err.Error())
 	}
 
 	// set the new data
@@ -121,34 +121,34 @@ func resourceUpdate(ctx *cli.Context) {
 
 	// sign update
 	if err = updateRequest.Sign(signer); err != nil {
-		utils.Fatalf("Error signing resource update: %s", err.Error())
+		utils.Fatalf("Error signing feed update: %s", err.Error())
 	}
 
 	// post update
-	err = client.UpdateResource(updateRequest)
+	err = client.UpdateFeed(updateRequest)
 	if err != nil {
-		utils.Fatalf("Error updating resource: %s", err.Error())
+		utils.Fatalf("Error updating feed: %s", err.Error())
 		return
 	}
 }
 
-func resourceInfo(ctx *cli.Context) {
+func feedInfo(ctx *cli.Context) {
 	var (
 		bzzapi                  = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
 		client                  = swarm.NewClient(bzzapi)
-		manifestAddressOrDomain = ctx.String(SwarmResourceManifestFlag.Name)
+		manifestAddressOrDomain = ctx.String(SwarmFeedManifestFlag.Name)
 	)
 
-	var query *mru.Query
+	var query *feed.Query
 	if manifestAddressOrDomain == "" {
-		query = new(mru.Query)
+		query = new(feed.Query)
 		query.Topic = getTopic(ctx)
-		query.User = resourceGetUser(ctx)
+		query.User = feedGetUser(ctx)
 	}
 
-	metadata, err := client.GetResourceMetadata(query, manifestAddressOrDomain)
+	metadata, err := client.GetFeedRequest(query, manifestAddressOrDomain)
 	if err != nil {
-		utils.Fatalf("Error retrieving resource metadata: %s", err.Error())
+		utils.Fatalf("Error retrieving feed metadata: %s", err.Error())
 		return
 	}
 	encodedMetadata, err := metadata.MarshalJSON()
@@ -158,8 +158,8 @@ func resourceInfo(ctx *cli.Context) {
 	fmt.Println(string(encodedMetadata))
 }
 
-func resourceGetUser(ctx *cli.Context) common.Address {
-	var user = ctx.String(SwarmResourceUserFlag.Name)
+func feedGetUser(ctx *cli.Context) common.Address {
+	var user = ctx.String(SwarmFeedUserFlag.Name)
 	if user != "" {
 		return common.HexToAddress(user)
 	}

cmd/swarm/mru_test.go → cmd/swarm/feeds_test.go

@@ -26,11 +26,11 @@ import (
 	"testing"
 
 	"github.com/ethereum/go-ethereum/swarm/api"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru/lookup"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
 	"github.com/ethereum/go-ethereum/swarm/testutil"
 
 	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed"
 
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/log"
@@ -38,12 +38,12 @@ import (
 	swarmhttp "github.com/ethereum/go-ethereum/swarm/api/http"
 )
 
-func TestCLIResourceUpdate(t *testing.T) {
+func TestCLIFeedUpdate(t *testing.T) {
 
 	srv := testutil.NewTestSwarmServer(t, func(api *api.API) testutil.TestServer {
 		return swarmhttp.NewServer(api, "")
 	}, nil)
-	log.Info("starting 1 node cluster")
+	log.Info("starting a test swarm server")
 	defer srv.Close()
 
 	// create a private key file for signing
@@ -65,7 +65,7 @@ func TestCLIResourceUpdate(t *testing.T) {
 	}
 
 	// compose a topic. We'll be doing quotes about Miguel de Cervantes
-	var topic mru.Topic
+	var topic feed.Topic
 	subject := []byte("Miguel de Cervantes")
 	copy(topic[:], subject[:])
 	name := "quotes"
@@ -77,13 +77,13 @@ func TestCLIResourceUpdate(t *testing.T) {
 	flags := []string{
 		"--bzzapi", srv.URL,
 		"--bzzaccount", pkfile.Name(),
-		"resource", "update",
+		"feed", "update",
 		"--topic", topic.Hex(),
 		"--name", name,
 		hexData}
 
 	// create an update and expect an exit without errors
-	log.Info(fmt.Sprintf("updating a resource with 'swarm resource update'"))
+	log.Info(fmt.Sprintf("updating a feed with 'swarm feed update'"))
 	cmd := runSwarm(t, flags...)
 	cmd.ExpectExit()
 
@@ -95,22 +95,22 @@ func TestCLIResourceUpdate(t *testing.T) {
 
 	// build the same topic as before, this time
 	// we use NewTopic to create a topic automatically.
-	topic, err = mru.NewTopic(name, subject)
+	topic, err = feed.NewTopic(name, subject)
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	// View configures whose updates we will be looking up.
-	view := mru.View{
+	// Feed configures whose updates we will be looking up.
+	fd := feed.Feed{
 		Topic: topic,
 		User:  address,
 	}
 
 	// Build a query to get the latest update
-	query := mru.NewQueryLatest(&view, lookup.NoClue)
+	query := feed.NewQueryLatest(&fd, lookup.NoClue)
 
 	// retrieve content!
-	reader, err := client.GetResource(query, "")
+	reader, err := client.QueryFeed(query, "")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -128,45 +128,45 @@ func TestCLIResourceUpdate(t *testing.T) {
 	// Now retrieve info for the next update
 	flags = []string{
 		"--bzzapi", srv.URL,
-		"resource", "info",
+		"feed", "info",
 		"--topic", topic.Hex(),
 		"--user", address.Hex(),
 	}
 
-	log.Info(fmt.Sprintf("getting resource info with 'swarm resource info'"))
+	log.Info(fmt.Sprintf("getting feed info with 'swarm feed info'"))
 	cmd = runSwarm(t, flags...)
 	_, matches := cmd.ExpectRegexp(`.*`) // regex hack to extract stdout
 	cmd.ExpectExit()
 
 	// verify we can deserialize the result as a valid JSON
-	var request mru.Request
+	var request feed.Request
 	err = json.Unmarshal([]byte(matches[0]), &request)
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	// make sure the retrieved view is the same
-	if request.View != view {
-		t.Fatalf("Expected view to be: %s, got %s", view, request.View)
+	// make sure the retrieved feed is the same
+	if request.Feed != fd {
+		t.Fatalf("Expected feed to be: %s, got %s", fd, request.Feed)
 	}
 
 	// test publishing a manifest
 	flags = []string{
 		"--bzzapi", srv.URL,
 		"--bzzaccount", pkfile.Name(),
-		"resource", "create",
+		"feed", "create",
 		"--topic", topic.Hex(),
 	}
 
-	log.Info(fmt.Sprintf("Publishing manifest with 'swarm resource create'"))
+	log.Info(fmt.Sprintf("Publishing manifest with 'swarm feed create'"))
 	cmd = runSwarm(t, flags...)
 	_, matches = cmd.ExpectRegexp(`[a-f\d]{64}`) // regex hack to extract stdout
 	cmd.ExpectExit()
 
-	manifestAddress := matches[0] // read the received resource manifest
+	manifestAddress := matches[0] // read the received feed manifest
 
 	// now attempt to lookup the latest update using a manifest instead
-	reader, err = client.GetResource(nil, manifestAddress)
+	reader, err = client.QueryFeed(nil, manifestAddress)
 	if err != nil {
 		t.Fatal(err)
 	}

cmd/swarm/main.go

@@ -207,25 +207,25 @@ var (
 		Name:  "compressed",
 		Usage: "Prints encryption keys in compressed form",
 	}
-	SwarmResourceNameFlag = cli.StringFlag{
+	SwarmFeedNameFlag = cli.StringFlag{
 		Name:  "name",
-		Usage: "User-defined name for the new resource, limited to 32 characters. If combined with topic, the resource will be a subtopic with this name",
+		Usage: "User-defined name for the new feed, limited to 32 characters. If combined with topic, it will refer to a subtopic with this name",
 	}
-	SwarmResourceTopicFlag = cli.StringFlag{
+	SwarmFeedTopicFlag = cli.StringFlag{
 		Name:  "topic",
-		Usage: "User-defined topic this resource is tracking, hex encoded. Limited to 64 hexadecimal characters",
+		Usage: "User-defined topic this feed is tracking, hex encoded. Limited to 64 hexadecimal characters",
 	}
-	SwarmResourceDataOnCreateFlag = cli.StringFlag{
+	SwarmFeedDataOnCreateFlag = cli.StringFlag{
 		Name:  "data",
-		Usage: "Initializes the resource with the given hex-encoded data. Data must be prefixed by 0x",
+		Usage: "Initializes the feed with the given hex-encoded data. Data must be prefixed by 0x",
 	}
-	SwarmResourceManifestFlag = cli.StringFlag{
+	SwarmFeedManifestFlag = cli.StringFlag{
 		Name:  "manifest",
-		Usage: "Refers to the resource through a manifest",
+		Usage: "Refers to the feed through a manifest",
 	}
-	SwarmResourceUserFlag = cli.StringFlag{
+	SwarmFeedUserFlag = cli.StringFlag{
 		Name:  "user",
-		Usage: "Indicates the user who updates the resource",
+		Usage: "Indicates the user who updates the feed",
 	}
 )
 
@@ -346,62 +346,62 @@ func init() {
 		},
 		{
 			CustomHelpTemplate: helpTemplate,
-			Name:               "resource",
-			Usage:              "(Advanced) Create and update Mutable Resources",
+			Name:               "feed",
+			Usage:              "(Advanced) Create and update Swarm Feeds",
 			ArgsUsage:          "<create|update|info>",
-			Description:        "Works with Mutable Resource Updates",
+			Description:        "Works with Swarm Feeds",
 			Subcommands: []cli.Command{
 				{
-					Action:             resourceCreate,
+					Action:             feedCreateManifest,
 					CustomHelpTemplate: helpTemplate,
 					Name:               "create",
-					Usage:              "creates and publishes a new Mutable Resource manifest",
-					Description: `creates and publishes a new Mutable Resource manifest pointing to a specified user's updates about a particular topic.
-					The resource topic can be built in the following ways:
+					Usage:              "creates and publishes a new feed manifest",
+					Description: `creates and publishes a new feed manifest pointing to a specified user's updates about a particular topic.
+					The feed topic can be built in the following ways:
 					* use --topic to set the topic to an arbitrary binary hex string.
 					* use --name to set the topic to a human-readable name.
-					    For example --name could be set to "profile-picture", meaning this Mutable Resource allows to get this user's current profile picture.
+					    For example --name could be set to "profile-picture", meaning this feed allows to get this user's current profile picture.
 					* use both --topic and --name to create named subtopics. 
 						For example, --topic could be set to an Ethereum contract address and --name could be set to "comments", meaning
-						the Mutable Resource tracks a discussion about that contract.
+						this feed tracks a discussion about that contract.
 					The --user flag allows to have this manifest refer to a user other than yourself. If not specified,
 					it will then default to your local account (--bzzaccount)`,
-					Flags: []cli.Flag{SwarmResourceNameFlag, SwarmResourceTopicFlag, SwarmResourceUserFlag},
+					Flags: []cli.Flag{SwarmFeedNameFlag, SwarmFeedTopicFlag, SwarmFeedUserFlag},
 				},
 				{
-					Action:             resourceUpdate,
+					Action:             feedUpdate,
 					CustomHelpTemplate: helpTemplate,
 					Name:               "update",
-					Usage:              "updates the content of an existing Mutable Resource",
+					Usage:              "updates the content of an existing Swarm Feed",
 					ArgsUsage:          "<0x Hex data>",
 					Description: `publishes a new update on the specified topic
-					The resource topic can be built in the following ways:
+					The feed topic can be built in the following ways:
 					* use --topic to set the topic to an arbitrary binary hex string.
 					* use --name to set the topic to a human-readable name.
-					    For example --name could be set to "profile-picture", meaning this Mutable Resource allows to get this user's current profile picture.
+					    For example --name could be set to "profile-picture", meaning this feed allows to get this user's current profile picture.
 					* use both --topic and --name to create named subtopics. 
 						For example, --topic could be set to an Ethereum contract address and --name could be set to "comments", meaning
-						the Mutable Resource tracks a discussion about that contract.
+						this feed tracks a discussion about that contract.
 					
-					If you have a manifest, you can specify it with --manifest to refer to the resource,
+					If you have a manifest, you can specify it with --manifest to refer to the feed,
 					instead of using --topic / --name
 					`,
-					Flags: []cli.Flag{SwarmResourceManifestFlag, SwarmResourceNameFlag, SwarmResourceTopicFlag},
+					Flags: []cli.Flag{SwarmFeedManifestFlag, SwarmFeedNameFlag, SwarmFeedTopicFlag},
 				},
 				{
-					Action:             resourceInfo,
+					Action:             feedInfo,
 					CustomHelpTemplate: helpTemplate,
 					Name:               "info",
-					Usage:              "obtains information about an existing Mutable Resource",
-					Description: `obtains information about an existing Mutable Resource
+					Usage:              "obtains information about an existing Swarm feed",
+					Description: `obtains information about an existing Swarm feed
 					The topic can be specified directly with the --topic flag as an hex string
 					If no topic is specified, the default topic (zero) will be used
 					The --name flag can be used to specify subtopics with a specific name.
 					The --user flag allows to refer to a user other than yourself. If not specified,
 					it will then default to your local account (--bzzaccount)
 					If you have a manifest, you can specify it with --manifest instead of --topic / --name / ---user
-					to refer to the resource`,
-					Flags: []cli.Flag{SwarmResourceManifestFlag, SwarmResourceNameFlag, SwarmResourceTopicFlag, SwarmResourceUserFlag},
+					to refer to the feed`,
+					Flags: []cli.Flag{SwarmFeedManifestFlag, SwarmFeedNameFlag, SwarmFeedTopicFlag, SwarmFeedUserFlag},
 				},
 			},
 		},
@@ -730,7 +730,7 @@ func getAccount(bzzaccount string, ctx *cli.Context, stack *node.Node) *ecdsa.Pr
 }
 
 // getPrivKey returns the private key of the specified bzzaccount
-// Used only by client commands, such as `resource`
+// Used only by client commands, such as `feed`
 func getPrivKey(ctx *cli.Context) *ecdsa.PrivateKey {
 	// booting up the swarm node just as we do in bzzd action
 	bzzconfig, err := buildConfig(ctx)

swarm/OWNERS

@@ -22,5 +22,5 @@ swarm
 ├── storage ─────────────── ethersphere
 │   ├── encryption ──────── @gbalint, @zelig, @nagydani
 │   ├── mock ────────────── @janos
-│   └── mru ─────────────── @nolash
+│   └── feed ────────────── @nolash, @jpeletier
 └── testutil ────────────── @lmars
\ No newline at end of file

swarm/api/client/client.go

@@ -35,7 +35,7 @@ import (
 	"strings"
 
 	"github.com/ethereum/go-ethereum/swarm/api"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed"
 )
 
 var (
@@ -601,16 +601,15 @@ func (c *Client) MultipartUpload(hash string, uploader Uploader) (string, error)
 	return string(data), nil
 }
 
-// ErrNoResourceUpdatesFound is returned when Swarm cannot find updates of the given resource
-var ErrNoResourceUpdatesFound = errors.New("No updates found for this resource")
+// ErrNoFeedUpdatesFound is returned when Swarm cannot find updates of the given feed
+var ErrNoFeedUpdatesFound = errors.New("No updates found for this feed")
 
-// CreateResource creates a Mutable Resource with the given name and frequency, initializing it with the provided
-// data. Data is interpreted as multihash or not depending on the multihash parameter.
-// startTime=0 means "now"
-// Returns the resulting Mutable Resource manifest address that you can use to include in an ENS Resolver (setContent)
-// or reference future updates (Client.UpdateResource)
-func (c *Client) CreateResource(request *mru.Request) (string, error) {
-	responseStream, err := c.updateResource(request, true)
+// CreateFeedWithManifest creates a feed manifest, initializing it with the provided
+// data
+// Returns the resulting feed manifest address that you can use to include in an ENS Resolver (setContent)
+// or reference future updates (Client.UpdateFeed)
+func (c *Client) CreateFeedWithManifest(request *feed.Request) (string, error) {
+	responseStream, err := c.updateFeed(request, true)
 	if err != nil {
 		return "", err
 	}
@@ -628,18 +627,18 @@ func (c *Client) CreateResource(request *mru.Request) (string, error) {
 	return manifestAddress, nil
 }
 
-// UpdateResource allows you to set a new version of your content
-func (c *Client) UpdateResource(request *mru.Request) error {
-	_, err := c.updateResource(request, false)
+// UpdateFeed allows you to set a new version of your content
+func (c *Client) UpdateFeed(request *feed.Request) error {
+	_, err := c.updateFeed(request, false)
 	return err
 }
 
-func (c *Client) updateResource(request *mru.Request, createManifest bool) (io.ReadCloser, error) {
+func (c *Client) updateFeed(request *feed.Request, createManifest bool) (io.ReadCloser, error) {
 	URL, err := url.Parse(c.Gateway)
 	if err != nil {
 		return nil, err
 	}
-	URL.Path = "/bzz-resource:/"
+	URL.Path = "/bzz-feed:/"
 	values := URL.Query()
 	body := request.AppendValues(values)
 	if createManifest {
@@ -660,23 +659,23 @@ func (c *Client) updateResource(request *mru.Request, createManifest bool) (io.R
 	return res.Body, nil
 }
 
-// GetResource returns a byte stream with the raw content of the resource
-// manifestAddressOrDomain is the address you obtained in CreateResource or an ENS domain whose Resolver
+// QueryFeed returns a byte stream with the raw content of the feed update
+// manifestAddressOrDomain is the address you obtained in CreateFeedWithManifest or an ENS domain whose Resolver
 // points to that address
-func (c *Client) GetResource(query *mru.Query, manifestAddressOrDomain string) (io.ReadCloser, error) {
-	return c.getResource(query, manifestAddressOrDomain, false)
+func (c *Client) QueryFeed(query *feed.Query, manifestAddressOrDomain string) (io.ReadCloser, error) {
+	return c.queryFeed(query, manifestAddressOrDomain, false)
 }
 
-// getResource returns a byte stream with the raw content of the resource
-// manifestAddressOrDomain is the address you obtained in CreateResource or an ENS domain whose Resolver
+// queryFeed returns a byte stream with the raw content of the feed update
+// manifestAddressOrDomain is the address you obtained in CreateFeedWithManifest or an ENS domain whose Resolver
 // points to that address
-// meta set to true will instruct the node return resource metainformation instead
-func (c *Client) getResource(query *mru.Query, manifestAddressOrDomain string, meta bool) (io.ReadCloser, error) {
+// meta set to true will instruct the node return feed metainformation instead
+func (c *Client) queryFeed(query *feed.Query, manifestAddressOrDomain string, meta bool) (io.ReadCloser, error) {
 	URL, err := url.Parse(c.Gateway)
 	if err != nil {
 		return nil, err
 	}
-	URL.Path = "/bzz-resource:/" + manifestAddressOrDomain
+	URL.Path = "/bzz-feed:/" + manifestAddressOrDomain
 	values := URL.Query()
 	if query != nil {
 		query.AppendValues(values) //adds query parameters
@@ -692,7 +691,7 @@ func (c *Client) getResource(query *mru.Query, manifestAddressOrDomain string, m
 
 	if res.StatusCode != http.StatusOK {
 		if res.StatusCode == http.StatusNotFound {
-			return nil, ErrNoResourceUpdatesFound
+			return nil, ErrNoFeedUpdatesFound
 		}
 		errorMessageBytes, err := ioutil.ReadAll(res.Body)
 		var errorMessage string
@@ -701,18 +700,18 @@ func (c *Client) getResource(query *mru.Query, manifestAddressOrDomain string, m
 		} else {
 			errorMessage = string(errorMessageBytes)
 		}
-		return nil, fmt.Errorf("Error retrieving resource: %s", errorMessage)
+		return nil, fmt.Errorf("Error retrieving feed updates: %s", errorMessage)
 	}
 
 	return res.Body, nil
 }
 
-// GetResourceMetadata returns a structure that describes the Mutable Resource
-// manifestAddressOrDomain is the address you obtained in CreateResource or an ENS domain whose Resolver
+// GetFeedRequest returns a structure that describes the referenced feed status
+// manifestAddressOrDomain is the address you obtained in CreateFeedWithManifest or an ENS domain whose Resolver
 // points to that address
-func (c *Client) GetResourceMetadata(query *mru.Query, manifestAddressOrDomain string) (*mru.Request, error) {
+func (c *Client) GetFeedRequest(query *feed.Query, manifestAddressOrDomain string) (*feed.Request, error) {
 
-	responseStream, err := c.getResource(query, manifestAddressOrDomain, true)
+	responseStream, err := c.queryFeed(query, manifestAddressOrDomain, true)
 	if err != nil {
 		return nil, err
 	}
@@ -723,7 +722,7 @@ func (c *Client) GetResourceMetadata(query *mru.Query, manifestAddressOrDomain s
 		return nil, err
 	}
 
-	var metadata mru.Request
+	var metadata feed.Request
 	if err := metadata.UnmarshalJSON(body); err != nil {
 		return nil, err
 	}

swarm/api/client/client_test.go

@@ -25,14 +25,14 @@ import (
 	"sort"
 	"testing"
 
-	"github.com/ethereum/go-ethereum/swarm/storage/mru/lookup"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/swarm/api"
 	swarmhttp "github.com/ethereum/go-ethereum/swarm/api/http"
 	"github.com/ethereum/go-ethereum/swarm/multihash"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed"
 	"github.com/ethereum/go-ethereum/swarm/testutil"
 )
 
@@ -361,20 +361,20 @@ func TestClientMultipartUpload(t *testing.T) {
 	}
 }
 
-func newTestSigner() (*mru.GenericSigner, error) {
+func newTestSigner() (*feed.GenericSigner, error) {
 	privKey, err := crypto.HexToECDSA("deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef")
 	if err != nil {
 		return nil, err
 	}
-	return mru.NewGenericSigner(privKey), nil
+	return feed.NewGenericSigner(privKey), nil
 }
 
-// test the transparent resolving of multihash resource types with bzz:// scheme
+// test the transparent resolving of multihash feed updates with bzz:// scheme
 //
-// first upload data, and store the multihash to the resulting manifest in a resource update
+// first upload data, and store the multihash to the resulting manifest in a feed update
 // retrieving the update with the multihash should return the manifest pointing directly to the data
 // and raw retrieve of that hash should return the data
-func TestClientCreateResourceMultihash(t *testing.T) {
+func TestClientCreateFeedMultihash(t *testing.T) {
 
 	signer, _ := newTestSigner()
 
@@ -393,36 +393,36 @@ func TestClientCreateResourceMultihash(t *testing.T) {
 	s := common.FromHex(swarmHash)
 	mh := multihash.ToMultihash(s)
 
-	// our mutable resource topic
-	topic, _ := mru.NewTopic("foo.eth", nil)
+	// our feed topic
+	topic, _ := feed.NewTopic("foo.eth", nil)
 
-	createRequest := mru.NewFirstRequest(topic)
+	createRequest := feed.NewFirstRequest(topic)
 
 	createRequest.SetData(mh)
 	if err := createRequest.Sign(signer); err != nil {
 		t.Fatalf("Error signing update: %s", err)
 	}
 
-	resourceManifestHash, err := client.CreateResource(createRequest)
+	feedManifestHash, err := client.CreateFeedWithManifest(createRequest)
 
 	if err != nil {
-		t.Fatalf("Error creating resource: %s", err)
+		t.Fatalf("Error creating feed manifest: %s", err)
 	}
 
-	correctManifestAddrHex := "6ef40ba1492cf2a029dc9a8b5896c822cf689d3cd010842f4f1744e6db8824bd"
-	if resourceManifestHash != correctManifestAddrHex {
-		t.Fatalf("Response resource manifest mismatch, expected '%s', got '%s'", correctManifestAddrHex, resourceManifestHash)
+	correctManifestAddrHex := "bb056a5264c295c2b0f613c8409b9c87ce9d71576ace02458160df4cc894210b"
+	if feedManifestHash != correctManifestAddrHex {
+		t.Fatalf("Response feed manifest mismatch, expected '%s', got '%s'", correctManifestAddrHex, feedManifestHash)
 	}
 
-	// Check we get a not found error when trying to get the resource with a made-up manifest
-	_, err = client.GetResource(nil, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb")
-	if err != ErrNoResourceUpdatesFound {
-		t.Fatalf("Expected to receive ErrNoResourceUpdatesFound error. Got: %s", err)
+	// Check we get a not found error when trying to get feed updates with a made-up manifest
+	_, err = client.QueryFeed(nil, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb")
+	if err != ErrNoFeedUpdatesFound {
+		t.Fatalf("Expected to receive ErrNoFeedUpdatesFound error. Got: %s", err)
 	}
 
-	reader, err := client.GetResource(nil, correctManifestAddrHex)
+	reader, err := client.QueryFeed(nil, correctManifestAddrHex)
 	if err != nil {
-		t.Fatalf("Error retrieving resource: %s", err)
+		t.Fatalf("Error retrieving feed updates: %s", err)
 	}
 	defer reader.Close()
 	gotData, err := ioutil.ReadAll(reader)
@@ -435,8 +435,8 @@ func TestClientCreateResourceMultihash(t *testing.T) {
 
 }
 
-// TestClientCreateUpdateResource will check that mutable resources can be created and updated via the HTTP client.
-func TestClientCreateUpdateResource(t *testing.T) {
+// TestClientCreateUpdateFeed will check that feeds can be created and updated via the HTTP client.
+func TestClientCreateUpdateFeed(t *testing.T) {
 
 	signer, _ := newTestSigner()
 
@@ -444,28 +444,28 @@ func TestClientCreateUpdateResource(t *testing.T) {
 	client := NewClient(srv.URL)
 	defer srv.Close()
 
-	// set raw data for the resource
+	// set raw data for the feed update
 	databytes := []byte("En un lugar de La Mancha, de cuyo nombre no quiero acordarme...")
 
-	// our mutable resource name
-	topic, _ := mru.NewTopic("El Quijote", nil)
-	createRequest := mru.NewFirstRequest(topic)
+	// our feed topic name
+	topic, _ := feed.NewTopic("El Quijote", nil)
+	createRequest := feed.NewFirstRequest(topic)
 
 	createRequest.SetData(databytes)
 	if err := createRequest.Sign(signer); err != nil {
 		t.Fatalf("Error signing update: %s", err)
 	}
 
-	resourceManifestHash, err := client.CreateResource(createRequest)
+	feedManifestHash, err := client.CreateFeedWithManifest(createRequest)
 
-	correctManifestAddrHex := "fcb8e75f53e480e197c083ad1976d265674d0ce776f2bf359c09c413fb5230b8"
-	if resourceManifestHash != correctManifestAddrHex {
-		t.Fatalf("Response resource manifest mismatch, expected '%s', got '%s'", correctManifestAddrHex, resourceManifestHash)
+	correctManifestAddrHex := "0e9b645ebc3da167b1d56399adc3276f7a08229301b72a03336be0e7d4b71882"
+	if feedManifestHash != correctManifestAddrHex {
+		t.Fatalf("Response feed manifest mismatch, expected '%s', got '%s'", correctManifestAddrHex, feedManifestHash)
 	}
 
-	reader, err := client.GetResource(nil, correctManifestAddrHex)
+	reader, err := client.QueryFeed(nil, correctManifestAddrHex)
 	if err != nil {
-		t.Fatalf("Error retrieving resource: %s", err)
+		t.Fatalf("Error retrieving feed updates: %s", err)
 	}
 	defer reader.Close()
 	gotData, err := ioutil.ReadAll(reader)
@@ -479,7 +479,7 @@ func TestClientCreateUpdateResource(t *testing.T) {
 	// define different data
 	databytes = []byte("... no ha mucho tiempo que vivía un hidalgo de los de lanza en astillero ...")
 
-	updateRequest, err := client.GetResourceMetadata(nil, correctManifestAddrHex)
+	updateRequest, err := client.GetFeedRequest(nil, correctManifestAddrHex)
 	if err != nil {
 		t.Fatalf("Error retrieving update request template: %s", err)
 	}
@@ -489,13 +489,13 @@ func TestClientCreateUpdateResource(t *testing.T) {
 		t.Fatalf("Error signing update: %s", err)
 	}
 
-	if err = client.UpdateResource(updateRequest); err != nil {
-		t.Fatalf("Error updating resource: %s", err)
+	if err = client.UpdateFeed(updateRequest); err != nil {
+		t.Fatalf("Error updating feed: %s", err)
 	}
 
-	reader, err = client.GetResource(nil, correctManifestAddrHex)
+	reader, err = client.QueryFeed(nil, correctManifestAddrHex)
 	if err != nil {
-		t.Fatalf("Error retrieving resource: %s", err)
+		t.Fatalf("Error retrieving feed updates: %s", err)
 	}
 	defer reader.Close()
 	gotData, err = ioutil.ReadAll(reader)
@@ -506,17 +506,17 @@ func TestClientCreateUpdateResource(t *testing.T) {
 		t.Fatalf("Expected: %v, got %v", databytes, gotData)
 	}
 
-	// now try retrieving resource without a manifest
+	// now try retrieving feed updates without a manifest
 
-	view := &mru.View{
+	fd := &feed.Feed{
 		Topic: topic,
 		User:  signer.Address(),
 	}
 
-	lookupParams := mru.NewQueryLatest(view, lookup.NoClue)
-	reader, err = client.GetResource(lookupParams, "")
+	lookupParams := feed.NewQueryLatest(fd, lookup.NoClue)
+	reader, err = client.QueryFeed(lookupParams, "")
 	if err != nil {
-		t.Fatalf("Error retrieving resource: %s", err)
+		t.Fatalf("Error retrieving feed updates: %s", err)
 	}
 	defer reader.Close()
 	gotData, err = ioutil.ReadAll(reader)

swarm/api/manifest.go

@@ -27,7 +27,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/ethereum/go-ethereum/swarm/storage/mru"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/swarm/log"
@@ -35,8 +35,8 @@ import (
 )
 
 const (
-	ManifestType        = "application/bzz-manifest+json"
-	ResourceContentType = "application/bzz-resource"
+	ManifestType    = "application/bzz-manifest+json"
+	FeedContentType = "application/bzz-feed"
 
 	manifestSizeLimit = 5 * 1024 * 1024
 )
@@ -48,15 +48,15 @@ type Manifest struct {
 
 // ManifestEntry represents an entry in a swarm manifest
 type ManifestEntry struct {
-	Hash         string       `json:"hash,omitempty"`
-	Path         string       `json:"path,omitempty"`
-	ContentType  string       `json:"contentType,omitempty"`
-	Mode         int64        `json:"mode,omitempty"`
-	Size         int64        `json:"size,omitempty"`
-	ModTime      time.Time    `json:"mod_time,omitempty"`
-	Status       int          `json:"status,omitempty"`
-	Access       *AccessEntry `json:"access,omitempty"`
-	ResourceView *mru.View    `json:"resourceView,omitempty"`
+	Hash        string       `json:"hash,omitempty"`
+	Path        string       `json:"path,omitempty"`
+	ContentType string       `json:"contentType,omitempty"`
+	Mode        int64        `json:"mode,omitempty"`
+	Size        int64        `json:"size,omitempty"`
+	ModTime     time.Time    `json:"mod_time,omitempty"`
+	Status      int          `json:"status,omitempty"`
+	Access      *AccessEntry `json:"access,omitempty"`
+	Feed        *feed.Feed   `json:"feed,omitempty"`
 }
 
 // ManifestList represents the result of listing files in a manifest
@@ -80,13 +80,13 @@ func (a *API) NewManifest(ctx context.Context, toEncrypt bool) (storage.Address,
 	return addr, err
 }
 
-// Manifest hack for supporting Mutable Resource Updates from the bzz: scheme
+// Manifest hack for supporting Swarm feeds from the bzz: scheme
 // see swarm/api/api.go:API.Get() for more information
-func (a *API) NewResourceManifest(ctx context.Context, view *mru.View) (storage.Address, error) {
+func (a *API) NewFeedManifest(ctx context.Context, feed *feed.Feed) (storage.Address, error) {
 	var manifest Manifest
 	entry := ManifestEntry{
-		ResourceView: view,
-		ContentType:  ResourceContentType,
+		Feed:        feed,
+		ContentType: FeedContentType,
 	}
 	manifest.Entries = append(manifest.Entries, entry)
 	data, err := json.Marshal(&manifest)

swarm/api/uri.go

@@ -86,7 +86,7 @@ func Parse(rawuri string) (*URI, error) {
 
 	// check the scheme is valid
 	switch uri.Scheme {
-	case "bzz", "bzz-raw", "bzz-immutable", "bzz-list", "bzz-hash", "bzz-resource":
+	case "bzz", "bzz-raw", "bzz-immutable", "bzz-list", "bzz-hash", "bzz-feed":
 	default:
 		return nil, fmt.Errorf("unknown scheme %q", u.Scheme)
 	}
@@ -108,8 +108,8 @@ func Parse(rawuri string) (*URI, error) {
 	}
 	return uri, nil
 }
-func (u *URI) Resource() bool {
-	return u.Scheme == "bzz-resource"
+func (u *URI) Feed() bool {
+	return u.Scheme == "bzz-feed"
 }
 
 func (u *URI) Raw() bool {

swarm/network/README.md

@@ -37,7 +37,7 @@ Using the streamer logic, various stream types are easy to implement:
   * live session syncing
   * historical syncing
 * simple retrieve requests and deliveries
-* mutable resource updates streams
+* swarm feeds streams
 * receipting for finger pointing
 
 ## Syncing
@@ -57,7 +57,7 @@ receipts for a deleted chunk easily to refute their challenge.
 - syncing should be resilient to cut connections, metadata should be persisted that
 keep track of syncing state across sessions, historical syncing state should survive restart
 - extra data structures to support syncing should be kept at minimum
-- syncing is organized separately for chunk types (resource update v content chunk)
+- syncing is not organized separately for chunk types (Swarm feed updates v regular content chunk)
 - various types of streams should have common logic abstracted
 
 Syncing is now entirely mediated by the localstore, ie., no processes or memory leaks due to network contention.

swarm/pss/notify/notify.go

@@ -317,7 +317,7 @@ func (c *Controller) handleStartMsg(msg *Msg, keyid string) (err error) {
 		return err
 	}
 
-	// TODO this is set to zero-length byte pending decision on protocol for initial message, whether it should include message or not, and how to trigger the initial message so that current state of MRU is sent upon subscription
+	// TODO this is set to zero-length byte pending decision on protocol for initial message, whether it should include message or not, and how to trigger the initial message so that current state of Swarm feed is sent upon subscription
 	notify := []byte{}
 	replyMsg := NewMsg(MsgCodeNotifyWithKey, msg.namestring, make([]byte, len(notify)+symKeyLength))
 	copy(replyMsg.Payload, notify)

swarm/storage/mru/binaryserializer.go → swarm/storage/feed/binaryserializer.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import "github.com/ethereum/go-ethereum/common/hexutil"
 

swarm/storage/mru/binaryserializer_test.go → swarm/storage/feed/binaryserializer_test.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"encoding/json"

swarm/storage/mru/cacheentry.go → swarm/storage/feed/cacheentry.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"bytes"
@@ -26,23 +26,23 @@ import (
 
 const (
 	hasherCount            = 8
-	resourceHashAlgorithm  = storage.SHA3Hash
+	feedsHashAlgorithm     = storage.SHA3Hash
 	defaultRetrieveTimeout = 100 * time.Millisecond
 )
 
-// cacheEntry caches resource data and the metadata of its root chunk.
+// cacheEntry caches the last known update of a specific Swarm feed.
 type cacheEntry struct {
-	ResourceUpdate
+	Update
 	*bytes.Reader
 	lastKey storage.Address
 }
 
 // implements storage.LazySectionReader
 func (r *cacheEntry) Size(ctx context.Context, _ chan bool) (int64, error) {
-	return int64(len(r.ResourceUpdate.data)), nil
+	return int64(len(r.Update.data)), nil
 }
 
-//returns the resource's topic
+//returns the feed's topic
 func (r *cacheEntry) Topic() Topic {
-	return r.View.Topic
+	return r.Feed.Topic
 }

swarm/storage/mru/doc.go → swarm/storage/feed/doc.go

 /*
-Package mru defines Mutable resource updates.
+Package feeds defines Swarm Feeds.
 
-A Mutable Resource is an entity which allows updates to a resource
+Swarm Feeds allows a user to build an update feed about a particular topic
 without resorting to ENS on each update.
 The update scheme is built on swarm chunks with chunk keys following
 a predictable, versionable pattern.
 
-A Resource is tied to a unique identifier that is deterministically generated out of
+A Feed is tied to a unique identifier that is deterministically generated out of
 the chosen topic.
 
-A Resource View is defined as a specific user's point of view about a particular resource.
-Thus, a View is a Topic + the user's address (userAddr)
+A Feed is defined as the series of updates of a specific user about a particular topic
 
 Actual data updates are also made in the form of swarm chunks. The keys
 of the updates are the hash of a concatenation of properties as follows:
 
-updateAddr = H(View, Epoch ID)
+updateAddr = H(Feed, Epoch ID)
 where H is the SHA3 hash function
-View is the combination of Topic and the user address
+Feed is the combination of Topic and the user address
 Epoch ID is a time slot. See the lookup package for more information.
 
-A user looking up a resource would only need to know the View in order to
-another user's updates
+A user looking up a the latest update in a Feed only needs to know the Topic
+and the other user's address.
 
-The resource update data is:
-resourcedata = View|Epoch|data
+The Feed Update data is:
+updatedata = Feed|Epoch|data
 
-the full update data that goes in the chunk payload is:
-resourcedata|sign(resourcedata)
+The full update data that goes in the chunk payload is:
+updatedata|sign(updatedata)
 
 Structure Summary:
 
-Request: Resource update with signature
-	ResourceUpdate: headers + data
+Request: Feed Update with signature
+	Update: headers + data
 		Header: Protocol version and reserved for future use placeholders
 		ID: Information about how to locate a specific update
-			View: Author of the update and what is updating
+			Feed: Represents a user's series of publications about a specific Topic
 				Topic: Item that the updates are about
-				User: User who updates the resource
+				User: User who updates the Feed
 			Epoch: time slot where the update is stored
 
 */
-package mru
+package feed

swarm/storage/mru/error.go → swarm/storage/feed/error.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"fmt"
@@ -35,7 +35,7 @@ const (
 	ErrCnt
 )
 
-// Error is a the typed error object used for Mutable Resources
+// Error is a the typed error object used for Swarm feeds
 type Error struct {
 	code int
 	err  string
@@ -47,12 +47,12 @@ func (e *Error) Error() string {
 }
 
 // Code returns the error code
-// Error codes are enumerated in the error.go file within the mru package
+// Error codes are enumerated in the error.go file within the feeds package
 func (e *Error) Code() int {
 	return e.code
 }
 
-// NewError creates a new Mutable Resource Error object with the specified code and custom error message
+// NewError creates a new Swarm feeds Error object with the specified code and custom error message
 func NewError(code int, s string) error {
 	if code < 0 || code >= ErrCnt {
 		panic("no such error code!")

swarm/storage/mru/view.go → swarm/storage/feed/feed.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"hash"
@@ -25,21 +25,21 @@ import (
 	"github.com/ethereum/go-ethereum/swarm/storage"
 )
 
-// View represents a particular user's view of a resource
-type View struct {
+// Feed represents a particular user's stream of updates on a topic
+type Feed struct {
 	Topic Topic          `json:"topic"`
 	User  common.Address `json:"user"`
 }
 
-// View layout:
+// Feed layout:
 // TopicLength bytes
 // userAddr common.AddressLength bytes
-const viewLength = TopicLength + common.AddressLength
+const feedLength = TopicLength + common.AddressLength
 
-// mapKey calculates a unique id for this view for the cache map in `Handler`
-func (u *View) mapKey() uint64 {
-	serializedData := make([]byte, viewLength)
-	u.binaryPut(serializedData)
+// mapKey calculates a unique id for this feed. Used by the cache map in `Handler`
+func (f *Feed) mapKey() uint64 {
+	serializedData := make([]byte, feedLength)
+	f.binaryPut(serializedData)
 	hasher := hashPool.Get().(hash.Hash)
 	defer hashPool.Put(hasher)
 	hasher.Reset()
@@ -48,55 +48,55 @@ func (u *View) mapKey() uint64 {
 	return *(*uint64)(unsafe.Pointer(&hash[0]))
 }
 
-// binaryPut serializes this View instance into the provided slice
-func (u *View) binaryPut(serializedData []byte) error {
-	if len(serializedData) != viewLength {
-		return NewErrorf(ErrInvalidValue, "Incorrect slice size to serialize View. Expected %d, got %d", viewLength, len(serializedData))
+// binaryPut serializes this feed instance into the provided slice
+func (f *Feed) binaryPut(serializedData []byte) error {
+	if len(serializedData) != feedLength {
+		return NewErrorf(ErrInvalidValue, "Incorrect slice size to serialize feed. Expected %d, got %d", feedLength, len(serializedData))
 	}
 	var cursor int
-	copy(serializedData[cursor:cursor+TopicLength], u.Topic[:TopicLength])
+	copy(serializedData[cursor:cursor+TopicLength], f.Topic[:TopicLength])
 	cursor += TopicLength
 
-	copy(serializedData[cursor:cursor+common.AddressLength], u.User[:])
+	copy(serializedData[cursor:cursor+common.AddressLength], f.User[:])
 	cursor += common.AddressLength
 
 	return nil
 }
 
 // binaryLength returns the expected size of this structure when serialized
-func (u *View) binaryLength() int {
-	return viewLength
+func (f *Feed) binaryLength() int {
+	return feedLength
 }
 
 // binaryGet restores the current instance from the information contained in the passed slice
-func (u *View) binaryGet(serializedData []byte) error {
-	if len(serializedData) != viewLength {
-		return NewErrorf(ErrInvalidValue, "Incorrect slice size to read View. Expected %d, got %d", viewLength, len(serializedData))
+func (f *Feed) binaryGet(serializedData []byte) error {
+	if len(serializedData) != feedLength {
+		return NewErrorf(ErrInvalidValue, "Incorrect slice size to read feed. Expected %d, got %d", feedLength, len(serializedData))
 	}
 
 	var cursor int
-	copy(u.Topic[:], serializedData[cursor:cursor+TopicLength])
+	copy(f.Topic[:], serializedData[cursor:cursor+TopicLength])
 	cursor += TopicLength
 
-	copy(u.User[:], serializedData[cursor:cursor+common.AddressLength])
+	copy(f.User[:], serializedData[cursor:cursor+common.AddressLength])
 	cursor += common.AddressLength
 
 	return nil
 }
 
-// Hex serializes the View to a hex string
-func (u *View) Hex() string {
-	serializedData := make([]byte, viewLength)
-	u.binaryPut(serializedData)
+// Hex serializes the feed to a hex string
+func (f *Feed) Hex() string {
+	serializedData := make([]byte, feedLength)
+	f.binaryPut(serializedData)
 	return hexutil.Encode(serializedData)
 }
 
 // FromValues deserializes this instance from a string key-value store
 // useful to parse query strings
-func (u *View) FromValues(values Values) (err error) {
+func (f *Feed) FromValues(values Values) (err error) {
 	topic := values.Get("topic")
 	if topic != "" {
-		if err := u.Topic.FromHex(values.Get("topic")); err != nil {
+		if err := f.Topic.FromHex(values.Get("topic")); err != nil {
 			return err
 		}
 	} else { // see if the user set name and relatedcontent
@@ -108,18 +108,18 @@ func (u *View) FromValues(values Values) (err error) {
 			}
 			relatedContent = relatedContent[:storage.AddressLength]
 		}
-		u.Topic, err = NewTopic(name, relatedContent)
+		f.Topic, err = NewTopic(name, relatedContent)
 		if err != nil {
 			return err
 		}
 	}
-	u.User = common.HexToAddress(values.Get("user"))
+	f.User = common.HexToAddress(values.Get("user"))
 	return nil
 }
 
 // AppendValues serializes this structure into the provided string key-value store
 // useful to build query strings
-func (u *View) AppendValues(values Values) {
-	values.Set("topic", u.Topic.Hex())
-	values.Set("user", u.User.Hex())
+func (f *Feed) AppendValues(values Values) {
+	values.Set("topic", f.Topic.Hex())
+	values.Set("user", f.User.Hex())
 }

swarm/storage/mru/view_test.go → swarm/storage/feed/feed_test.go

@@ -13,24 +13,24 @@
 //
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-package mru
+package feed
 
 import (
 	"testing"
 )
 
-func getTestView() *View {
+func getTestFeed() *Feed {
 	topic, _ := NewTopic("world news report, every hour", nil)
-	return &View{
+	return &Feed{
 		Topic: topic,
 		User:  newCharlieSigner().Address(),
 	}
 }
 
-func TestViewSerializerDeserializer(t *testing.T) {
-	testBinarySerializerRecovery(t, getTestView(), "0x776f726c64206e657773207265706f72742c20657665727920686f7572000000876a8936a7cd0b79ef0735ad0896c1afe278781c")
+func TestFeedSerializerDeserializer(t *testing.T) {
+	testBinarySerializerRecovery(t, getTestFeed(), "0x776f726c64206e657773207265706f72742c20657665727920686f7572000000876a8936a7cd0b79ef0735ad0896c1afe278781c")
 }
 
-func TestMetadataSerializerLengthCheck(t *testing.T) {
-	testBinarySerializerLengthCheck(t, getTestView())
+func TestFeedSerializerLengthCheck(t *testing.T) {
+	testBinarySerializerLengthCheck(t, getTestFeed())
 }

swarm/storage/mru/id.go → swarm/storage/feed/id.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"fmt"
@@ -22,28 +22,28 @@ import (
 	"strconv"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru/lookup"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
 
 	"github.com/ethereum/go-ethereum/swarm/storage"
 )
 
 // ID uniquely identifies an update on the network.
 type ID struct {
-	View         `json:"view"`
+	Feed         `json:"feed"`
 	lookup.Epoch `json:"epoch"`
 }
 
 // ID layout:
-// View viewLength bytes
+// Feed feedLength bytes
 // Epoch EpochLength
-const idLength = viewLength + lookup.EpochLength
+const idLength = feedLength + lookup.EpochLength
 
-// Addr calculates the resource update chunk address corresponding to this ID
+// Addr calculates the feed update chunk address corresponding to this ID
 func (u *ID) Addr() (updateAddr storage.Address) {
 	serializedData := make([]byte, idLength)
 	var cursor int
-	u.View.binaryPut(serializedData[cursor : cursor+viewLength])
-	cursor += viewLength
+	u.Feed.binaryPut(serializedData[cursor : cursor+feedLength])
+	cursor += feedLength
 
 	eid := u.Epoch.ID()
 	copy(serializedData[cursor:cursor+lookup.EpochLength], eid[:])
@@ -61,10 +61,10 @@ func (u *ID) binaryPut(serializedData []byte) error {
 		return NewErrorf(ErrInvalidValue, "Incorrect slice size to serialize ID. Expected %d, got %d", idLength, len(serializedData))
 	}
 	var cursor int
-	if err := u.View.binaryPut(serializedData[cursor : cursor+viewLength]); err != nil {
+	if err := u.Feed.binaryPut(serializedData[cursor : cursor+feedLength]); err != nil {
 		return err
 	}
-	cursor += viewLength
+	cursor += feedLength
 
 	epochBytes, err := u.Epoch.MarshalBinary()
 	if err != nil {
@@ -88,10 +88,10 @@ func (u *ID) binaryGet(serializedData []byte) error {
 	}
 
 	var cursor int
-	if err := u.View.binaryGet(serializedData[cursor : cursor+viewLength]); err != nil {
+	if err := u.Feed.binaryGet(serializedData[cursor : cursor+feedLength]); err != nil {
 		return err
 	}
-	cursor += viewLength
+	cursor += feedLength
 
 	if err := u.Epoch.UnmarshalBinary(serializedData[cursor : cursor+lookup.EpochLength]); err != nil {
 		return err
@@ -108,8 +108,8 @@ func (u *ID) FromValues(values Values) error {
 	u.Epoch.Level = uint8(level)
 	u.Epoch.Time, _ = strconv.ParseUint(values.Get("time"), 10, 64)
 
-	if u.View.User == (common.Address{}) {
-		return u.View.FromValues(values)
+	if u.Feed.User == (common.Address{}) {
+		return u.Feed.FromValues(values)
 	}
 	return nil
 }
@@ -119,5 +119,5 @@ func (u *ID) FromValues(values Values) error {
 func (u *ID) AppendValues(values Values) {
 	values.Set("level", fmt.Sprintf("%d", u.Epoch.Level))
 	values.Set("time", fmt.Sprintf("%d", u.Epoch.Time))
-	u.View.AppendValues(values)
+	u.Feed.AppendValues(values)
 }

swarm/storage/mru/id_test.go → swarm/storage/feed/id_test.go

-package mru
+package feed
 
 import (
 	"testing"
 
-	"github.com/ethereum/go-ethereum/swarm/storage/mru/lookup"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
 )
 
 func getTestID() *ID {
 	return &ID{
-		View:  *getTestView(),
+		Feed:  *getTestFeed(),
 		Epoch: lookup.GetFirstEpoch(1000),
 	}
 }
 
 func TestIDAddr(t *testing.T) {
-	ul := getTestID()
-	updateAddr := ul.Addr()
+	id := getTestID()
+	updateAddr := id.Addr()
 	compareByteSliceToExpectedHex(t, "updateAddr", updateAddr, "0x8b24583ec293e085f4c78aaee66d1bc5abfb8b4233304d14a349afa57af2a783")
 }
 

swarm/storage/mru/lookup/epoch_test.go → swarm/storage/feed/lookup/epoch_test.go

@@ -3,7 +3,7 @@ package lookup_test
 import (
 	"testing"
 
-	"github.com/ethereum/go-ethereum/swarm/storage/mru/lookup"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
 )
 
 func TestMarshallers(t *testing.T) {

swarm/storage/mru/lookup/lookup.go → swarm/storage/feed/lookup/lookup.go

@@ -15,7 +15,7 @@
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
 /*
-Package lookup defines resource lookup algorithms and provides tools to place updates
+Package lookup defines feed lookup algorithms and provides tools to place updates
 so they can be found
 */
 package lookup

swarm/storage/mru/lookup/lookup_test.go → swarm/storage/feed/lookup/lookup_test.go

@@ -22,7 +22,7 @@ import (
 	"testing"
 
 	"github.com/ethereum/go-ethereum/swarm/log"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru/lookup"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
 )
 
 type Data struct {

swarm/storage/mru/query.go → swarm/storage/feed/query.go

@@ -14,20 +14,20 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"fmt"
 	"strconv"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru/lookup"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
 )
 
 // Query is used to specify constraints when performing an update lookup
 // TimeLimit indicates an upper bound for the search. Set to 0 for "now"
 type Query struct {
-	View
+	Feed
 	Hint      lookup.Epoch
 	TimeLimit uint64
 }
@@ -41,8 +41,8 @@ func (q *Query) FromValues(values Values) error {
 	level, _ := strconv.ParseUint(values.Get("hint.level"), 10, 32)
 	q.Hint.Level = uint8(level)
 	q.Hint.Time, _ = strconv.ParseUint(values.Get("hint.time"), 10, 64)
-	if q.View.User == (common.Address{}) {
-		return q.View.FromValues(values)
+	if q.Feed.User == (common.Address{}) {
+		return q.Feed.FromValues(values)
 	}
 	return nil
 }
@@ -59,20 +59,20 @@ func (q *Query) AppendValues(values Values) {
 	if q.Hint.Time != 0 {
 		values.Set("hint.time", fmt.Sprintf("%d", q.Hint.Time))
 	}
-	q.View.AppendValues(values)
+	q.Feed.AppendValues(values)
 }
 
 // NewQuery constructs an Query structure to find updates on or before `time`
 // if time == 0, the latest update will be looked up
-func NewQuery(view *View, time uint64, hint lookup.Epoch) *Query {
+func NewQuery(feed *Feed, time uint64, hint lookup.Epoch) *Query {
 	return &Query{
 		TimeLimit: time,
-		View:      *view,
+		Feed:      *feed,
 		Hint:      hint,
 	}
 }
 
-// NewQueryLatest generates lookup parameters that look for the latest version of a resource
-func NewQueryLatest(view *View, hint lookup.Epoch) *Query {
-	return NewQuery(view, 0, hint)
+// NewQueryLatest generates lookup parameters that look for the latest update to a feed
+func NewQueryLatest(feed *Feed, hint lookup.Epoch) *Query {
+	return NewQuery(feed, 0, hint)
 }

swarm/storage/mru/query_test.go → swarm/storage/feed/query_test.go

@@ -14,18 +14,18 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"testing"
 )
 
 func getTestQuery() *Query {
-	ul := getTestID()
+	id := getTestID()
 	return &Query{
 		TimeLimit: 5000,
-		View:      ul.View,
-		Hint:      ul.Epoch,
+		Feed:      id.Feed,
+		Hint:      id.Epoch,
 	}
 }
 

swarm/storage/mru/request.go → swarm/storage/feed/request.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"bytes"
@@ -24,15 +24,15 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/swarm/storage"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru/lookup"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
 )
 
-// Request represents an update and/or resource create message
+// Request represents a request to sign or signed feed update message
 type Request struct {
-	ResourceUpdate // actual content that will be put on the chunk, less signature
-	Signature      *Signature
-	idAddr         storage.Address // cached chunk address for the update (not serialized, for internal use)
-	binaryData     []byte          // cached serialized data (does not get serialized again!, for efficiency/internal use)
+	Update     // actual content that will be put on the chunk, less signature
+	Signature  *Signature
+	idAddr     storage.Address // cached chunk address for the update (not serialized, for internal use)
+	binaryData []byte          // cached serialized data (does not get serialized again!, for efficiency/internal use)
 }
 
 // updateRequestJSON represents a JSON-serialized UpdateRequest
@@ -44,11 +44,11 @@ type updateRequestJSON struct {
 }
 
 // Request layout
-// resourceUpdate bytes
+// Update bytes
 // SignatureLength bytes
 const minimumSignedUpdateLength = minimumUpdateDataLength + signatureLength
 
-// NewFirstRequest returns a ready to sign request to publish a first update
+// NewFirstRequest returns a ready to sign request to publish a first feed update
 func NewFirstRequest(topic Topic) *Request {
 
 	request := new(Request)
@@ -56,13 +56,13 @@ func NewFirstRequest(topic Topic) *Request {
 	// get the current time
 	now := TimestampProvider.Now().Time
 	request.Epoch = lookup.GetFirstEpoch(now)
-	request.View.Topic = topic
+	request.Feed.Topic = topic
 	request.Header.Version = ProtocolVersion
 
 	return request
 }
 
-// SetData stores the payload data the resource will be updated with
+// SetData stores the payload data the feed update will be updated with
 func (r *Request) SetData(data []byte) {
 	r.data = data
 	r.Signature = nil
@@ -73,7 +73,7 @@ func (r *Request) IsUpdate() bool {
 	return r.Signature != nil
 }
 
-// Verify checks that signatures are valid and that the signer owns the resource to be updated
+// Verify checks that signatures are valid
 func (r *Request) Verify() (err error) {
 	if len(r.data) == 0 {
 		return NewError(ErrInvalidValue, "Update does not contain data")
@@ -88,7 +88,7 @@ func (r *Request) Verify() (err error) {
 	}
 
 	// get the address of the signer (which also checks that it's a valid signature)
-	r.View.User, err = getUserAddr(digest, *r.Signature)
+	r.Feed.User, err = getUserAddr(digest, *r.Signature)
 	if err != nil {
 		return err
 	}
@@ -103,9 +103,9 @@ func (r *Request) Verify() (err error) {
 	return nil
 }
 
-// Sign executes the signature to validate the resource
+// Sign executes the signature to validate the update message
 func (r *Request) Sign(signer Signer) error {
-	r.View.User = signer.Address()
+	r.Feed.User = signer.Address()
 	r.binaryData = nil           //invalidate serialized data
 	digest, err := r.GetDigest() // computes digest and serializes into .binaryData
 	if err != nil {
@@ -133,16 +133,16 @@ func (r *Request) Sign(signer Signer) error {
 	return nil
 }
 
-// GetDigest creates the resource update digest used in signatures
+// GetDigest creates the feed update digest used in signatures
 // the serialized payload is cached in .binaryData
 func (r *Request) GetDigest() (result common.Hash, err error) {
 	hasher := hashPool.Get().(hash.Hash)
 	defer hashPool.Put(hasher)
 	hasher.Reset()
-	dataLength := r.ResourceUpdate.binaryLength()
+	dataLength := r.Update.binaryLength()
 	if r.binaryData == nil {
 		r.binaryData = make([]byte, dataLength+signatureLength)
-		if err := r.ResourceUpdate.binaryPut(r.binaryData[:dataLength]); err != nil {
+		if err := r.Update.binaryPut(r.binaryData[:dataLength]); err != nil {
 			return result, err
 		}
 	}
@@ -161,10 +161,10 @@ func (r *Request) toChunk() (storage.Chunk, error) {
 		return nil, NewError(ErrInvalidSignature, "toChunk called without a valid signature or payload data. Call .Sign() first.")
 	}
 
-	resourceUpdateLength := r.ResourceUpdate.binaryLength()
+	updateLength := r.Update.binaryLength()
 
 	// signature is the last item in the chunk data
-	copy(r.binaryData[resourceUpdateLength:], r.Signature[:])
+	copy(r.binaryData[updateLength:], r.Signature[:])
 
 	chunk := storage.NewChunk(r.idAddr, r.binaryData)
 	return chunk, nil
@@ -174,14 +174,14 @@ func (r *Request) toChunk() (storage.Chunk, error) {
 func (r *Request) fromChunk(updateAddr storage.Address, chunkdata []byte) error {
 	// for update chunk layout see Request definition
 
-	//deserialize the resource update portion
-	if err := r.ResourceUpdate.binaryGet(chunkdata[:len(chunkdata)-signatureLength]); err != nil {
+	//deserialize the feed update portion
+	if err := r.Update.binaryGet(chunkdata[:len(chunkdata)-signatureLength]); err != nil {
 		return err
 	}
 
 	// Extract the signature
 	var signature *Signature
-	cursor := r.ResourceUpdate.binaryLength()
+	cursor := r.Update.binaryLength()
 	sigdata := chunkdata[cursor : cursor+signatureLength]
 	if len(sigdata) > 0 {
 		signature = &Signature{}
@@ -209,7 +209,7 @@ func (r *Request) FromValues(values Values, data []byte) error {
 		r.Signature = new(Signature)
 		copy(r.Signature[:], signatureBytes)
 	}
-	err = r.ResourceUpdate.FromValues(values, data)
+	err = r.Update.FromValues(values, data)
 	if err != nil {
 		return err
 	}
@@ -223,7 +223,7 @@ func (r *Request) AppendValues(values Values) []byte {
 	if r.Signature != nil {
 		values.Set("signature", hexutil.Encode(r.Signature[:]))
 	}
-	return r.ResourceUpdate.AppendValues(values)
+	return r.Update.AppendValues(values)
 }
 
 // fromJSON takes an update request JSON and populates an UpdateRequest

swarm/storage/mru/request_test.go → swarm/storage/feed/request_test.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"bytes"
@@ -26,7 +26,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/swarm/storage"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru/lookup"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed/lookup"
 )
 
 func areEqualJSON(s1, s2 string) (bool, error) {
@@ -47,51 +47,49 @@ func areEqualJSON(s1, s2 string) (bool, error) {
 }
 
 // TestEncodingDecodingUpdateRequests ensures that requests are serialized properly
-// while also checking cryptographically that only the owner of a resource can update it.
+// while also checking cryptographically that only the owner of a feed can update it.
 func TestEncodingDecodingUpdateRequests(t *testing.T) {
 
 	charlie := newCharlieSigner() //Charlie
 	bob := newBobSigner()         //Bob
 
-	// Create a resource to our good guy Charlie's name
-	topic, _ := NewTopic("a good resource name", nil)
-	createRequest := NewFirstRequest(topic)
-	createRequest.User = charlie.Address()
+	// Create a feed to our good guy Charlie's name
+	topic, _ := NewTopic("a good topic name", nil)
+	firstRequest := NewFirstRequest(topic)
+	firstRequest.User = charlie.Address()
 
 	// We now encode the create message to simulate we send it over the wire
-	messageRawData, err := createRequest.MarshalJSON()
+	messageRawData, err := firstRequest.MarshalJSON()
 	if err != nil {
-		t.Fatalf("Error encoding create resource request: %s", err)
+		t.Fatalf("Error encoding first feed update request: %s", err)
 	}
 
 	// ... the message arrives and is decoded...
-	var recoveredCreateRequest Request
-	if err := recoveredCreateRequest.UnmarshalJSON(messageRawData); err != nil {
-		t.Fatalf("Error decoding create resource request: %s", err)
+	var recoveredFirstRequest Request
+	if err := recoveredFirstRequest.UnmarshalJSON(messageRawData); err != nil {
+		t.Fatalf("Error decoding first feed update request: %s", err)
 	}
 
 	// ... but verification should fail because it is not signed!
-	if err := recoveredCreateRequest.Verify(); err == nil {
+	if err := recoveredFirstRequest.Verify(); err == nil {
 		t.Fatal("Expected Verify to fail since the message is not signed")
 	}
 
-	// We now assume that the resource was created and propagated. With rootAddr we can retrieve the resource metadata
-	// and recover the information above. To sign an update, we need the rootAddr and the metaHash to construct
-	// proof of ownership
+	// We now assume that the feed ypdate was created and propagated.
 
-	const expectedSignature = "0x32c2d2c7224e24e4d3ae6a10595fc6e945f1b3ecdf548a04d8247c240a50c9240076aa7730abad6c8a46dfea00cfb8f43b6211f02db5c4cc5ed8584cb0212a4d00"
-	const expectedJSON = `{"view":{"topic":"0x6120676f6f64207265736f75726365206e616d65000000000000000000000000","user":"0x876a8936a7cd0b79ef0735ad0896c1afe278781c"},"epoch":{"time":1000,"level":1},"protocolVersion":0,"data":"0x5468697320686f75722773207570646174653a20537761726d2039392e3020686173206265656e2072656c656173656421"}`
+	const expectedSignature = "0x7235b27a68372ddebcf78eba48543fa460864b0b0e99cb533fcd3664820e603312d29426dd00fb39628f5299480a69bf6e462838d78de49ce0704c754c9deb2601"
+	const expectedJSON = `{"feed":{"topic":"0x6120676f6f6420746f706963206e616d65000000000000000000000000000000","user":"0x876a8936a7cd0b79ef0735ad0896c1afe278781c"},"epoch":{"time":1000,"level":1},"protocolVersion":0,"data":"0x5468697320686f75722773207570646174653a20537761726d2039392e3020686173206265656e2072656c656173656421"}`
 
 	//Put together an unsigned update request that we will serialize to send it to the signer.
 	data := []byte("This hour's update: Swarm 99.0 has been released!")
 	request := &Request{
-		ResourceUpdate: ResourceUpdate{
+		Update: Update{
 			ID: ID{
 				Epoch: lookup.Epoch{
 					Time:  1000,
 					Level: 1,
 				},
-				View: createRequest.ResourceUpdate.View,
+				Feed: firstRequest.Update.Feed,
 			},
 			data: data,
 		},
@@ -138,7 +136,7 @@ func TestEncodingDecodingUpdateRequests(t *testing.T) {
 		t.Fatal("Expected DecodeUpdateRequest to fail when trying to interpret a corrupt message with an invalid signature")
 	}
 
-	// Now imagine Bob wants to create an update of his own about the same resource,
+	// Now imagine Bob wants to create an update of his own about the same feed,
 	// signing a message with his private key
 	if err := request.Sign(bob); err != nil {
 		t.Fatalf("Error signing: %s", err)
@@ -191,7 +189,7 @@ func TestEncodingDecodingUpdateRequests(t *testing.T) {
 
 func getTestRequest() *Request {
 	return &Request{
-		ResourceUpdate: *getTestResourceUpdate(),
+		Update: *getTestFeedUpdate(),
 	}
 }
 
@@ -230,7 +228,7 @@ func TestUpdateChunkSerializationErrorChecking(t *testing.T) {
 	var recovered Request
 	recovered.fromChunk(chunk.Address(), chunk.Data())
 	if !reflect.DeepEqual(recovered, r) {
-		t.Fatal("Expected recovered SignedResource update to equal the original one")
+		t.Fatal("Expected recovered feed update request to equal the original one")
 	}
 }
 
@@ -250,7 +248,7 @@ func TestReverse(t *testing.T) {
 	// signer containing private key
 	signer := newAliceSigner()
 
-	// set up rpc and create resourcehandler
+	// set up rpc and create feeds handler
 	_, _, teardownTest, err := setupTest(timeProvider, signer)
 	if err != nil {
 		t.Fatal(err)
@@ -258,7 +256,7 @@ func TestReverse(t *testing.T) {
 	defer teardownTest()
 
 	topic, _ := NewTopic("Cervantes quotes", nil)
-	view := View{
+	fd := Feed{
 		Topic: topic,
 		User:  signer.Address(),
 	}
@@ -266,7 +264,7 @@ func TestReverse(t *testing.T) {
 	data := []byte("Donde una puerta se cierra, otra se abre")
 
 	request := new(Request)
-	request.View = view
+	request.Feed = fd
 	request.Epoch = epoch
 	request.data = data
 
@@ -291,15 +289,15 @@ func TestReverse(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	recoveredaddress, err := getUserAddr(checkdigest, *checkUpdate.Signature)
+	recoveredAddr, err := getUserAddr(checkdigest, *checkUpdate.Signature)
 	if err != nil {
 		t.Fatalf("Retrieve address from signature fail: %v", err)
 	}
-	originaladdress := crypto.PubkeyToAddress(signer.PrivKey.PublicKey)
+	originalAddr := crypto.PubkeyToAddress(signer.PrivKey.PublicKey)
 
 	// check that the metadata retrieved from the chunk matches what we gave it
-	if recoveredaddress != originaladdress {
-		t.Fatalf("addresses dont match: %x != %x", originaladdress, recoveredaddress)
+	if recoveredAddr != originalAddr {
+		t.Fatalf("addresses dont match: %x != %x", originalAddr, recoveredAddr)
 	}
 
 	if !bytes.Equal(key[:], chunk.Address()[:]) {

swarm/storage/mru/resource_sign.go → swarm/storage/feed/sign.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"crypto/ecdsa"
@@ -28,7 +28,7 @@ const signatureLength = 65
 // Signature is an alias for a static byte array with the size of a signature
 type Signature [signatureLength]byte
 
-// Signer signs Mutable Resource update payloads
+// Signer signs feed update payloads
 type Signer interface {
 	Sign(common.Hash) (Signature, error)
 	Address() common.Address
@@ -65,7 +65,7 @@ func (s *GenericSigner) Address() common.Address {
 	return s.address
 }
 
-// getUserAddr extracts the address of the resource update signer
+// getUserAddr extracts the address of the feed update signer
 func getUserAddr(digest common.Hash, signature Signature) (common.Address, error) {
 	pub, err := crypto.SigToPub(digest.Bytes(), signature[:])
 	if err != nil {

swarm/storage/mru/testutil.go → swarm/storage/feed/testutil.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"context"
@@ -27,7 +27,7 @@ import (
 )
 
 const (
-	testDbDirName = "mru"
+	testDbDirName = "feeds"
 )
 
 type TestHandler struct {
@@ -52,20 +52,20 @@ func newFakeNetFetcher(context.Context, storage.Address, *sync.Map) storage.NetF
 // NewTestHandler creates Handler object to be used for testing purposes.
 func NewTestHandler(datadir string, params *HandlerParams) (*TestHandler, error) {
 	path := filepath.Join(datadir, testDbDirName)
-	rh := NewHandler(params)
+	fh := NewHandler(params)
 	localstoreparams := storage.NewDefaultLocalStoreParams()
 	localstoreparams.Init(path)
 	localStore, err := storage.NewLocalStore(localstoreparams, nil)
 	if err != nil {
 		return nil, fmt.Errorf("localstore create fail, path %s: %v", path, err)
 	}
-	localStore.Validators = append(localStore.Validators, storage.NewContentAddressValidator(storage.MakeHashFunc(resourceHashAlgorithm)))
-	localStore.Validators = append(localStore.Validators, rh)
+	localStore.Validators = append(localStore.Validators, storage.NewContentAddressValidator(storage.MakeHashFunc(feedsHashAlgorithm)))
+	localStore.Validators = append(localStore.Validators, fh)
 	netStore, err := storage.NewNetStore(localStore, nil)
 	if err != nil {
 		return nil, err
 	}
 	netStore.NewNetFetcherFunc = newFakeNetFetcher
-	rh.SetStore(netStore)
-	return &TestHandler{rh}, nil
+	fh.SetStore(netStore)
+	return &TestHandler{fh}, nil
 }

swarm/storage/mru/timestampprovider.go → swarm/storage/feed/timestampprovider.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"encoding/binary"
@@ -22,7 +22,7 @@ import (
 	"time"
 )
 
-// TimestampProvider sets the time source of the mru package
+// TimestampProvider sets the time source of the feeds package
 var TimestampProvider timestampProvider = NewDefaultTimestampProvider()
 
 // Timestamp encodes a point in time as a Unix epoch

swarm/storage/mru/topic.go → swarm/storage/feed/topic.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"bytes"
@@ -29,7 +29,7 @@ import (
 // TopicLength establishes the max length of a topic string
 const TopicLength = storage.AddressLength
 
-// Topic represents what a resource talks about
+// Topic represents what a feed is about
 type Topic [TopicLength]byte
 
 // ErrTopicTooLong is returned when creating a topic with a name/related content too long
@@ -74,7 +74,7 @@ func (t *Topic) FromHex(hex string) error {
 	return nil
 }
 
-// Name will try to extract the resource name out of the topic
+// Name will try to extract the topic name out of the Topic
 func (t *Topic) Name(relatedContent []byte) string {
 	nameBytes := *t
 	if relatedContent != nil {

swarm/storage/mru/topic_test.go → swarm/storage/feed/topic_test.go

-package mru
+package feed
 
 import (
 	"testing"

swarm/storage/mru/update.go → swarm/storage/feed/update.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"fmt"
@@ -34,25 +34,25 @@ type Header struct {
 	Padding [headerLength - 1]uint8 // reserved for future use
 }
 
-// ResourceUpdate encapsulates the information sent as part of a resource update
-type ResourceUpdate struct {
+// Update encapsulates the information sent as part of a feed update
+type Update struct {
 	Header Header //
-	ID            // Resource update identifying information
+	ID            // Feed Update identifying information
 	data   []byte // actual data payload
 }
 
 const minimumUpdateDataLength = idLength + headerLength + 1
 const maxUpdateDataLength = chunk.DefaultSize - signatureLength - idLength - headerLength
 
-// binaryPut serializes the resource update information into the given slice
-func (r *ResourceUpdate) binaryPut(serializedData []byte) error {
+// binaryPut serializes the feed update information into the given slice
+func (r *Update) binaryPut(serializedData []byte) error {
 	datalength := len(r.data)
 	if datalength == 0 {
-		return NewError(ErrInvalidValue, "cannot update a resource with no data")
+		return NewError(ErrInvalidValue, "a feed update must contain data")
 	}
 
 	if datalength > maxUpdateDataLength {
-		return NewErrorf(ErrInvalidValue, "data is too big (length=%d). Max length=%d", datalength, maxUpdateDataLength)
+		return NewErrorf(ErrInvalidValue, "feed update data is too big (length=%d). Max length=%d", datalength, maxUpdateDataLength)
 	}
 
 	if len(serializedData) != r.binaryLength() {
@@ -79,14 +79,14 @@ func (r *ResourceUpdate) binaryPut(serializedData []byte) error {
 }
 
 // binaryLength returns the expected number of bytes this structure will take to encode
-func (r *ResourceUpdate) binaryLength() int {
+func (r *Update) binaryLength() int {
 	return idLength + headerLength + len(r.data)
 }
 
 // binaryGet populates this instance from the information contained in the passed byte slice
-func (r *ResourceUpdate) binaryGet(serializedData []byte) error {
+func (r *Update) binaryGet(serializedData []byte) error {
 	if len(serializedData) < minimumUpdateDataLength {
-		return NewErrorf(ErrNothingToReturn, "chunk less than %d bytes cannot be a resource update chunk", minimumUpdateDataLength)
+		return NewErrorf(ErrNothingToReturn, "chunk less than %d bytes cannot be a feed update chunk", minimumUpdateDataLength)
 	}
 	dataLength := len(serializedData) - idLength - headerLength
 	// at this point we can be satisfied that we have the correct data length to read
@@ -116,7 +116,7 @@ func (r *ResourceUpdate) binaryGet(serializedData []byte) error {
 
 // FromValues deserializes this instance from a string key-value store
 // useful to parse query strings
-func (r *ResourceUpdate) FromValues(values Values, data []byte) error {
+func (r *Update) FromValues(values Values, data []byte) error {
 	r.data = data
 	version, _ := strconv.ParseUint(values.Get("protocolVersion"), 10, 32)
 	r.Header.Version = uint8(version)
@@ -125,7 +125,7 @@ func (r *ResourceUpdate) FromValues(values Values, data []byte) error {
 
 // AppendValues serializes this structure into the provided string key-value store
 // useful to build query strings
-func (r *ResourceUpdate) AppendValues(values Values) []byte {
+func (r *Update) AppendValues(values Values) []byte {
 	r.ID.AppendValues(values)
 	values.Set("protocolVersion", fmt.Sprintf("%d", r.Header.Version))
 	return r.data

swarm/storage/mru/update_test.go → swarm/storage/feed/update_test.go

@@ -14,37 +14,37 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package mru
+package feed
 
 import (
 	"testing"
 )
 
-func getTestResourceUpdate() *ResourceUpdate {
-	return &ResourceUpdate{
+func getTestFeedUpdate() *Update {
+	return &Update{
 		ID:   *getTestID(),
 		data: []byte("El que lee mucho y anda mucho, ve mucho y sabe mucho"),
 	}
 }
 
-func TestResourceUpdateSerializer(t *testing.T) {
-	testBinarySerializerRecovery(t, getTestResourceUpdate(), "0x0000000000000000776f726c64206e657773207265706f72742c20657665727920686f7572000000876a8936a7cd0b79ef0735ad0896c1afe278781ce803000000000019456c20717565206c6565206d7563686f207920616e6461206d7563686f2c207665206d7563686f20792073616265206d7563686f")
+func TestUpdateSerializer(t *testing.T) {
+	testBinarySerializerRecovery(t, getTestFeedUpdate(), "0x0000000000000000776f726c64206e657773207265706f72742c20657665727920686f7572000000876a8936a7cd0b79ef0735ad0896c1afe278781ce803000000000019456c20717565206c6565206d7563686f207920616e6461206d7563686f2c207665206d7563686f20792073616265206d7563686f")
 }
 
-func TestResourceUpdateLengthCheck(t *testing.T) {
-	testBinarySerializerLengthCheck(t, getTestResourceUpdate())
+func TestUpdateLengthCheck(t *testing.T) {
+	testBinarySerializerLengthCheck(t, getTestFeedUpdate())
 	// Test fail if update is too big
-	update := getTestResourceUpdate()
+	update := getTestFeedUpdate()
 	update.data = make([]byte, maxUpdateDataLength+100)
 	serialized := make([]byte, update.binaryLength())
 	if err := update.binaryPut(serialized); err == nil {
-		t.Fatal("Expected resourceUpdate.binaryPut to fail since update is too big")
+		t.Fatal("Expected update.binaryPut to fail since update is too big")
 	}
 
 	// test fail if data is empty or nil
 	update.data = nil
 	serialized = make([]byte, update.binaryLength())
 	if err := update.binaryPut(serialized); err == nil {
-		t.Fatal("Expected resourceUpdate.binaryPut to fail since data is empty")
+		t.Fatal("Expected update.binaryPut to fail since data is empty")
 	}
 }

swarm/storage/localstore_test.go

@@ -30,8 +30,8 @@ var (
 )
 
 // tests that the content address validator correctly checks the data
-// tests that resource update chunks are passed through content address validator
-// the test checking the resouce update validator internal correctness is found in resource_test.go
+// tests that feed update chunks are passed through content address validator
+// the test checking the resouce update validator internal correctness is found in storage/feeds/handler_test.go
 func TestValidator(t *testing.T) {
 	// set up localstore
 	datadir, err := ioutil.TempDir("", "storage-testvalidator")

swarm/swarm.go

@@ -49,8 +49,8 @@ import (
 	"github.com/ethereum/go-ethereum/swarm/pss"
 	"github.com/ethereum/go-ethereum/swarm/state"
 	"github.com/ethereum/go-ethereum/swarm/storage"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed"
 	"github.com/ethereum/go-ethereum/swarm/storage/mock"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru"
 	"github.com/ethereum/go-ethereum/swarm/tracing"
 )
 
@@ -186,15 +186,15 @@ func NewSwarm(config *api.Config, mockStore *mock.NodeStore) (self *Swarm, err e
 	// Swarm Hash Merklised Chunking for Arbitrary-length Document/File storage
 	self.fileStore = storage.NewFileStore(self.netStore, self.config.FileStoreParams)
 
-	var resourceHandler *mru.Handler
-	rhparams := &mru.HandlerParams{}
+	var feedsHandler *feed.Handler
+	fhParams := &feed.HandlerParams{}
 
-	resourceHandler = mru.NewHandler(rhparams)
-	resourceHandler.SetStore(self.netStore)
+	feedsHandler = feed.NewHandler(fhParams)
+	feedsHandler.SetStore(self.netStore)
 
 	lstore.Validators = []storage.ChunkValidator{
 		storage.NewContentAddressValidator(storage.MakeHashFunc(storage.DefaultHash)),
-		resourceHandler,
+		feedsHandler,
 	}
 
 	err = lstore.Migrate()
@@ -215,7 +215,7 @@ func NewSwarm(config *api.Config, mockStore *mock.NodeStore) (self *Swarm, err e
 		pss.SetHandshakeController(self.ps, pss.NewHandshakeParams())
 	}
 
-	self.api = api.NewAPI(self.fileStore, self.dns, resourceHandler, self.privateKey)
+	self.api = api.NewAPI(self.fileStore, self.dns, feedsHandler, self.privateKey)
 
 	self.sfs = fuse.NewSwarmFS(self.api)
 	log.Debug("Initialized FUSE filesystem")

swarm/testutil/http.go

@@ -25,7 +25,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/swarm/api"
 	"github.com/ethereum/go-ethereum/swarm/storage"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed"
 )
 
 type TestServer interface {
@@ -48,14 +48,14 @@ func NewTestSwarmServer(t *testing.T, serverFunc func(*api.API) TestServer, reso
 	}
 	fileStore := storage.NewFileStore(localStore, storage.NewFileStoreParams())
 
-	// mutable resources test setup
-	resourceDir, err := ioutil.TempDir("", "swarm-resource-test")
+	// Swarm feeds test setup
+	feedsDir, err := ioutil.TempDir("", "swarm-feeds-test")
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	rhparams := &mru.HandlerParams{}
-	rh, err := mru.NewTestHandler(resourceDir, rhparams)
+	rhparams := &feed.HandlerParams{}
+	rh, err := feed.NewTestHandler(feedsDir, rhparams)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -71,11 +71,11 @@ func NewTestSwarmServer(t *testing.T, serverFunc func(*api.API) TestServer, reso
 			srv.Close()
 			rh.Close()
 			os.RemoveAll(dir)
-			os.RemoveAll(resourceDir)
+			os.RemoveAll(feedsDir)
 		},
 		CurrentTime: 42,
 	}
-	mru.TimestampProvider = tss
+	feed.TimestampProvider = tss
 	return tss
 }
 
@@ -92,6 +92,6 @@ func (t *TestSwarmServer) Close() {
 	t.cleanup()
 }
 
-func (t *TestSwarmServer) Now() mru.Timestamp {
-	return mru.Timestamp{Time: t.CurrentTime}
+func (t *TestSwarmServer) Now() feed.Timestamp {
+	return feed.Timestamp{Time: t.CurrentTime}
 }