les: fix eth_sendTransaction API (#23215)

f05419f0 · gary rong · GitHub · a5e3aa69 · f05419f0
Unverified Commit f05419f0 authored Jul 15, 2021 by gary rong Committed by GitHub Jul 15, 2021
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api_backend.go les/api_backend.go +4 -1

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--- a/les/api_backend.go
+++ b/les/api_backend.go
@@ -60,8 +60,11 @@ func (b *LesApiBackend) SetHead(number uint64) {
 }

 func (b *LesApiBackend) HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error) {
+	// Return the latest current as the pending one since there
+	// is no pending notion in the light client. TODO(rjl493456442)
+	// unify the behavior of `HeaderByNumber` and `PendingBlockAndReceipts`.
 	if number == rpc.PendingBlockNumber {
-		return nil, nil
+		return b.eth.blockchain.CurrentHeader(), nil
 	}
 	if number == rpc.LatestBlockNumber {
 		return b.eth.blockchain.CurrentHeader(), nil