Solana Sign Transfer

[blukhi99]

I want to Sign my Solana transaction (Java or Kotlin) and I am not able to do it.
I am using the method from the test case but, that encode seems wrong.

any can suggest me?
Regards

[korinsek]

@blukhi99 Where exactly do you have problem?

My example which works:

       val privateKey = hdWallet.getPrivateKey(Blockchain.SOLANA)
      // Fresh blockhash fetched from node https://docs.solana.com/developing/clients/jsonrpc-api#getlatestblockhash
      val latestBlockhash = "EkSnNWid2cvwEVnVx9aBqawnmiCNiDgp3gUdkDPTKN1N"
      val recipientAddress = "7imwsMrxHYseWMGrKDXL1Cpi72HuLXnmZKgWitRnooEW"
      val amountInLamports = 33594L

      val protobufTransactionMessage = Solana.SigningInput.newBuilder().apply {
          this.privateKey = ByteString.copyFrom(privateKey)
          this.recentBlockhash = latestBlockhash
          this.transferTransaction = Solana.Transfer.newBuilder().apply {
              recipient = recipientAddress
              value = amountInLamports
          }.build()
      }.build()

      // Sign a transaction message
      val coinType = CoinType.createFromValue(Blockchain.SOLANA.coinType)
      val base58EncodedMessage =
          AnySigner.sign(protobufTransactionMessage, coinType, Solana.SigningOutput.parser()).encoded
      return Base64.encodeToString(Base58.decodeNoCheck(base58EncodedMessage), Base64.NO_WRAP or Base64.NO_PADDING)