eth, les, light: filter on logs only, derive receipts on demand

1 files changed, 12 insertions, 0 deletions

diff --git a/eth/api_backend.go b/eth/api_backend.go
index 91f392f94..ecd5488a2 100644
--- a/eth/api_backend.go
+++ b/eth/api_backend.go
@@ -104,6 +104,18 @@ func (b *EthApiBackend) GetReceipts(ctx context.Context, blockHash common.Hash)
 	return core.GetBlockReceipts(b.eth.chainDb, blockHash, core.GetBlockNumber(b.eth.chainDb, blockHash)), nil
 }
 
+func (b *EthApiBackend) GetLogs(ctx context.Context, blockHash common.Hash) ([][]*types.Log, error) {
+	receipts := core.GetBlockReceipts(b.eth.chainDb, blockHash, core.GetBlockNumber(b.eth.chainDb, blockHash))
+	if receipts == nil {
+		return nil, nil
+	}
+	logs := make([][]*types.Log, len(receipts))
+	for i, receipt := range receipts {
+		logs[i] = receipt.Logs
+	}
+	return logs, nil
+}
+
 func (b *EthApiBackend) GetTd(blockHash common.Hash) *big.Int {
 	return b.eth.blockchain.GetTdByHash(blockHash)
 }