rpc: add gettransaction endpoint to walletrpc sub-server

lnwallet/btcwallet/btcwallet.go

@@ -1285,6 +1285,45 @@ func getPreviousOutpoints(wireTx *wire.MsgTx,
 	return previousOutpoints
 }
 
+// GetTransactionDetails returns details of a transaction given its
+// transaction hash.
+func (b *BtcWallet) GetTransactionDetails(
+	txHash *chainhash.Hash) (*lnwallet.TransactionDetail, error) {
+
+	// Grab the best block the wallet knows of, we'll use this to calculate
+	// # of confirmations shortly below.
+	bestBlock := b.wallet.Manager.SyncedTo()
+	currentHeight := bestBlock.Height
+	tx, err := b.wallet.GetTransaction(*txHash)
+	if err != nil {
+		return nil, err
+	}
+
+	// For both confirmed and unconfirmed transactions, create a
+	// TransactionDetail which re-packages the data returned by the base
+	// wallet.
+	if tx.Confirmations > 0 {
+		txDetails, err := minedTransactionsToDetails(
+			currentHeight,
+			base.Block{
+				Transactions: []base.TransactionSummary{
+					tx.Summary,
+				},
+				Hash:      tx.BlockHash,
+				Height:    tx.Height,
+				Timestamp: tx.Summary.Timestamp},
+			b.netParams,
+		)
+		if err != nil {
+			return nil, err
+		}
+
+		return txDetails[0], nil
+	}
+
+	return unminedTransactionsToDetail(tx.Summary, b.netParams)
+}
+
 // minedTransactionsToDetails is a helper function which converts a summary
 // information about mined transactions to a TransactionDetail.
 func minedTransactionsToDetails(

lnwallet/interface.go

@@ -356,6 +356,11 @@ type WalletController interface {
 	CreateSimpleTx(outputs []*wire.TxOut, feeRate chainfee.SatPerKWeight,
 		minConfs int32, dryRun bool) (*txauthor.AuthoredTx, error)
 
+	// GetTransactionDetails returns a detailed description of a transaction
+	// given its transaction hash.
+	GetTransactionDetails(txHash *chainhash.Hash) (
+		*TransactionDetail, error)
+
 	// ListUnspentWitness returns all unspent outputs which are version 0
 	// witness programs. The 'minConfs' and 'maxConfs' parameters
 	// indicate the minimum and maximum number of confirmations an output

lnwallet/mock.go

@@ -243,6 +243,13 @@ func (w *mockWalletController) PublishTransaction(tx *wire.MsgTx,
 	return nil
 }
 
+// GetTransactionDetails currently does nothing.
+func (w *mockWalletController) GetTransactionDetails(*chainhash.Hash) (
+	*TransactionDetail, error) {
+
+	return nil, nil
+}
+
 // LabelTransaction currently does nothing.
 func (w *mockWalletController) LabelTransaction(chainhash.Hash, string,
 	bool) error {