diff --git a/src/main/java/bdchain/api/TransactionLedgerClient.java b/src/main/java/bdchain/api/TransactionLedgerClient.java
index d333942..49175f9 100644
--- a/src/main/java/bdchain/api/TransactionLedgerClient.java
+++ b/src/main/java/bdchain/api/TransactionLedgerClient.java
@@ -2,6 +2,7 @@ package bdchain.api;
 
 import bdchain.api.grpc.*;
 import bdchain.api.grpc.TransactionLedgerGrpc.TransactionLedgerBlockingStub;
+import com.google.protobuf.ByteString;
 import com.google.protobuf.Empty;
 import io.grpc.ManagedChannel;
 import io.grpc.ManagedChannelBuilder;
@@ -64,12 +65,22 @@ public class TransactionLedgerClient {
   }
 
   public SendTransactionResponse sendTransaction(
-      String ledger, SendTransactionRequest.Transaction transaction) {
+      String ledger, TransactionType type, String from, String to, byte[] data) {
 
-    info("*** sendTransaction: ledger={0} transaction={1}", ledger, transaction);
+    info(
+        "*** sendTransaction: ledger={0} type={1} from={2} to={3} data={4}",
+        ledger, type, from, to, data);
 
     SendTransactionRequest request =
-        SendTransactionRequest.newBuilder().setLedger(ledger).setTransaction(transaction).build();
+        SendTransactionRequest.newBuilder()
+            .setLedger(ledger)
+            .setTransaction(
+                SendTransactionRequest.Transaction.newBuilder()
+                    .setType(type)
+                    .setFrom(ByteString.copyFrom(Utils.hexStringToByteArray(from)))
+                    .setTo(ByteString.copyFrom(Utils.hexStringToByteArray(from)))
+                    .setData(ByteString.copyFrom(data)))
+            .build();
 
     try {
       return blockingStub.sendTransaction(request);