internal/ethapi: add getBlockReceiptsByHash (#56)

* dex: add getBlockReceiptsByHash

add rpc method for performance acceleration

* Update internal/ethapi/api.go

Co-Authored-By: johnliu-dexon <42129254+johnliu-dexon@users.noreply.github.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go
index 43553bece..a06e5e0e8 100644
--- a/internal/ethapi/api.go
+++ b/internal/ethapi/api.go
@@ -673,6 +673,41 @@ func (s *PublicBlockChainAPI) GetStorageAt(ctx context.Context, address common.A
 	return res[:], state.Error()
 }
 
+// GetBlockReceiptsByNumber returns the requested block receipts.
+func (s *PublicBlockChainAPI) GetBlockReceiptsByHash(ctx context.Context, blockHash common.Hash) ([]map[string]interface{}, error) {
+	receipts, err := s.b.GetReceipts(ctx, blockHash)
+	if err != nil {
+		return nil, err
+	}
+
+	resp := make([]map[string]interface{}, 0, len(receipts))
+	for _, receipt := range receipts {
+		fields := map[string]interface{}{
+			"gasUsed":           hexutil.Uint64(receipt.GasUsed),
+			"cumulativeGasUsed": hexutil.Uint64(receipt.CumulativeGasUsed),
+			"contractAddress":   nil,
+			"logs":              receipt.Logs,
+			"logsBloom":         receipt.Bloom,
+		}
+
+		// Assign receipt status or post state.
+		if len(receipt.PostState) > 0 {
+			fields["root"] = hexutil.Bytes(receipt.PostState)
+		} else {
+			fields["status"] = hexutil.Uint(receipt.Status)
+		}
+		if receipt.Logs == nil {
+			fields["logs"] = [][]*types.Log{}
+		}
+		// If the ContractAddress is 20 0x0 bytes, assume it is not a contract creation
+		if receipt.ContractAddress != (common.Address{}) {
+			fields["contractAddress"] = receipt.ContractAddress
+		}
+		resp = append(resp, fields)
+	}
+	return resp, nil
+}
+
 // CallArgs represents the arguments for a call.
 type CallArgs struct {
 	From     common.Address  `json:"from"`