internal/ethapi: add GetReceipt to Backend

core/blockchain_reader.go

@@ -209,6 +209,12 @@ func (bc *BlockChain) GetBlocksFromHash(hash common.Hash, n int) (blocks []*type
 	return
 }
 
+// GetReceiptByHash retrieves the receipt by transaction hash
+func (bc *BlockChain) GetReceiptByHash(txHash common.Hash) *types.Receipt {
+	receipt, _, _, _ := rawdb.ReadReceipt(bc.db, txHash, bc.chainConfig)
+	return receipt
+}
+
 // GetReceiptsByHash retrieves the receipts for all transactions in a given block.
 func (bc *BlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
 	if receipts, ok := bc.receiptsCache.Get(hash); ok {

eth/api_backend.go

@@ -234,6 +234,10 @@ func (b *EthAPIBackend) StateAndHeaderByNumberOrHash(ctx context.Context, blockN
 	return nil, nil, errors.New("invalid arguments; neither block nor hash specified")
 }
 
+func (b *EthAPIBackend) GetReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error) {
+	return b.eth.blockchain.GetReceiptByHash(txHash), nil
+}
+
 func (b *EthAPIBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
 	return b.eth.blockchain.GetReceiptsByHash(hash), nil
 }

eth/filters/filter_system_test.go

@@ -107,6 +107,11 @@ func (b *testBackend) GetBody(ctx context.Context, hash common.Hash, number rpc.
 	return nil, errors.New("block body not found")
 }
 
+func (b *testBackend) GetReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error) {
+	receipt, _, _, _ := rawdb.ReadReceipt(b.db, txHash, params.TestChainConfig)
+	return receipt, nil
+}
+
 func (b *testBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
 	if number := rawdb.ReadHeaderNumber(b.db, hash); number != nil {
 		if header := rawdb.ReadHeader(b.db, hash, *number); header != nil {

eth/gasprice/gasprice_test.go

@@ -99,6 +99,10 @@ func (b *testBackend) BlockByNumber(ctx context.Context, number rpc.BlockNumber)
 	return b.chain.GetBlockByNumber(uint64(number)), nil
 }
 
+func (b *testBackend) GetReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error) {
+	return b.chain.GetReceiptByHash(txHash), nil
+}
+
 func (b *testBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
 	return b.chain.GetReceiptsByHash(hash), nil
 }

internal/ethapi/api_test.go

@@ -550,6 +550,10 @@ func (b testBackend) StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOr
 	panic("only implemented for number")
 }
 func (b testBackend) Pending() (*types.Block, types.Receipts, *state.StateDB) { panic("implement me") }
+func (b testBackend) GetReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error) {
+	receipt, _, _, _ := rawdb.ReadReceipt(b.db, txHash, b.chain.Config())
+	return receipt, nil
+}
 func (b testBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
 	header, err := b.HeaderByHash(ctx, hash)
 	if header == nil || err != nil {

internal/ethapi/backend.go

@@ -67,6 +67,7 @@ type Backend interface {
 	StateAndHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*state.StateDB, *types.Header, error)
 	StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.StateDB, *types.Header, error)
 	Pending() (*types.Block, types.Receipts, *state.StateDB)
+	GetReceipt(ctx context.Context, hash common.Hash) (*types.Receipt, error)
 	GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error)
 	GetTd(ctx context.Context, hash common.Hash) *big.Int
 	GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) *vm.EVM

internal/ethapi/transaction_args_test.go

@@ -361,6 +361,9 @@ func (b *backendMock) StateAndHeaderByNumberOrHash(ctx context.Context, blockNrO
 	return nil, nil, nil
 }
 func (b *backendMock) Pending() (*types.Block, types.Receipts, *state.StateDB) { return nil, nil, nil }
+func (b *backendMock) GetReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error) {
+	return nil, nil
+}
 func (b *backendMock) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
 	return nil, nil
 }