try to find the BatchData in db to avoid calculate it when it's possible

cmd/rpcdaemon/commands/zkevm_api.go

@@ -320,6 +320,16 @@ func (api *ZkEvmAPIImpl) GetBatchDataByNumbers(ctx context.Context, batchNumbers
 			continue
 		}
 
+		// try to find the BatchData in db to avoid calculate it when it is possible
+		batchData, err := hermezDb.GetL1BatchData(batchNumber.Uint64())
+		if err != nil {
+			return nil, err
+		} else if len(batchData) != 0 {
+			bd.BatchL2Data = batchData
+			bds = append(bds, bd)
+			continue
+		}
+
 		// looks weird but we're using the rpc.BlockNumber type to represent the batch number, LatestBlockNumber represents latest batch
 		if batchNumber == rpc.LatestBlockNumber {
 			batchNumber = rpc.BlockNumber(highestBatchNo)

rpc/types.go

@@ -80,6 +80,11 @@ const (
 	EarliestBlockNumber       = BlockNumber(0)
 )
 
+// Returns the block number as type uint64
+func (bn *BlockNumber) Uint64() uint64 {
+	return uint64(bn.Int64())
+}
+
 // UnmarshalJSON parses the given JSON fragment into a BlockNumber. It supports:
 // - "latest", "earliest", "pending", "safe", or "finalized" as string arguments
 // - the block number