solution: get transaction by txId

Author: kanazirsky

proto/transaction.message.proto

@@ -103,3 +103,23 @@ message Change {
   // index of address in xpub if detected (optional)
   google.protobuf.UInt32Value xpub_index = 6;
 }
+
+message GetTransactionRequest {
+  ChainRef chain = 1;
+  string tx_id = 2;
+}
+
+message Transaction {
+  ChainRef chain = 1;
+  string tx_id = 2;
+  // block info if transaction is in block, empty for mempool transaction
+  BlockInfo block = 3;
+  // true if transaction is in mempool, false if transaction is in block
+  bool mempool = 4;
+  // transaction index in block
+  uint32 tx_index_in_block = 5;
+  // true if transaction is failed
+  bool failed = 6;
+  // all changes in transaction
+  repeated Change changes = 7;
+}

proto/transaction.proto

@@ -14,4 +14,8 @@ service Transaction {
   rpc GetTransactions (transaction.GetTransactionsRequest) returns (stream transaction.AddressTransaction) {}
   // Subscribe to new transactions in blocks and all transaction in mempool for address
   rpc SubscribeTransactions (transaction.SubscribeTransactionsRequest) returns (stream transaction.AddressTransaction) {}
+
+  // Get transaction by txId
+  rpc GetTransaction (transaction.GetTransactionRequest) returns (transaction.Transaction) {}
+
 }