I am trying to getfeeformessage in SOLANA #2619

blukhi99 · 2022-10-04T11:07:05Z

blukhi99
Oct 4, 2022

I am trying to getfeeformessage in the Solana chain where I need Base64 of encoding message.

I created code like below

val transferMessage = Solana.Transfer.newBuilder().apply {
    recipient = AnyAddress(receiver, CoinType.SOLANA).description()
     value = amount.toBigDecimal().toWEI(decimals).toLong()
}.build()
val signingInput = Solana.SigningInput.newBuilder().apply {
    transferTransaction = transferMessage
    recentBlockhash = blockhash
    privateKey = ByteString.copyFrom(Base58.decodeNoCheck(_privateKey))
}.build()
val output = AnySigner.sign(signingInput, CoinType.SOLANA, Solana.SigningOutput.parser())

output.encode what I get but, when Pass Base64 encode or without encode Solana throw error **"message": "io error: failed to fill whole buffer"**

Kindly help to resolve this

Answered by optout21

Oct 6, 2022

My random guess is that this method expects only message, without signatures. SignatureOutput.encoded from wallet core starts out with the signature.

01 // 1 signature follows
e83ea0b8bcc855b996d5a171b8a02770de0c02beeb4d991911df30eaf9bd2d246a84640c7f64b75f7173467718b1842ec81c103d8a19f1f0e774807b7f985d0d
01 // signatures
00 // credit-only signed accounts
01 // credit-only unsigned accounts
03 // accounts
46cf3f8ee51aaefc3587d1c8682aa0efc9412cdcf5efad988f35f3cea0cd461b
8ab7abdb8d681d3eedad665ec5e4e234fd11e44f85ed59b2f96b4dd625497a71
0000000000000000000000000000000000000000000000000000000000000000
95c9c6344c9afb4a153d58cce28e7eca802cd9321864424139e13b533b30cf28 // recent blockhash
01 // inst…

View full answer

miloserdow · 2022-10-04T13:35:37Z

miloserdow
Oct 4, 2022

Hi, I think what you need to pass as a parameter is transferMessage encoded with Base64, not the signed transaction

0 replies

blukhi99 · 2022-10-04T13:47:21Z

blukhi99
Oct 4, 2022
Author

Thanks for answer

I also thought but that is also not working

0 replies

Milerius · 2022-10-04T15:20:15Z

Milerius
Oct 4, 2022
Maintainer

Thanks for answer

I also thought but that is also not working

Hello @blukhi99 - can you give more information, what's the bug you are facing now?

0 replies

optout21 · 2022-10-04T18:17:54Z

optout21
Oct 4, 2022

Some comments:

SigningOutput.encoded is Base58-encoded; getfeeformessage expects Base64-encoded
SigningOutput.encoded contains the signatures also, maybe getfeeformessage expects only the message data (not clear to me from the description); see Transaction.messageData()
https://github.com/trustwallet/wallet-core/blob/master/src/Solana/Transaction.h#L501

0 replies

blukhi99 · 2022-10-05T05:27:39Z

blukhi99
Oct 5, 2022
Author

Hello @Milerius and @catenocrypt
Thanks for the replay.

let me explain more.
I want to integrate Solana into My android app and I am using a wallet-core library that has some kinds of method already defined for PrivateKey, and Sign.
in other SDK Solanaj I can see it is working perfectly and for the get Serialize Transaction message first Sign by the private key and use method of serializeMessage and its working 100%.
but, I want to use the Wallet Core library due to the planning of multi-chain integration.

one, more thing I saw Sign Message of Wallet-core lib and Solanj are different for the same parameters.
The error that I get when passing only Base64 encoded message

{ "id":1, "jsonrpc":"2.0", "method":"getFeeForMessage", "params":[ "CixBTFZoaXpHUXU1THU0eHNpam9DOXBQNEhkYjhkN1ZiS1g4MlRnOFpjeHp3aRCgjQY=", { "commitment":"processed" } ] }

{
    "jsonrpc": "2.0",
    "error": {
        "code": -32602,
        "message": "io error: failed to fill whole buffer"
    },
    "id": 1
}

0 replies

optout21 · 2022-10-05T06:57:03Z

optout21
Oct 5, 2022

Do you have an example of a getFeeForMessage call that does work? That would be helpful to understand the difference.

1 reply

blukhi99 Oct 5, 2022
Author

@catenocrypt

Request ->

{
  "id":1,
  "jsonrpc":"2.0",
  "method":"getFeeForMessage",
  "params":[
    "AQABA0bPP47lGq78NYfRyGgqoO/JQSzc9e+tmI81886gzUYbirer241oHT7trWZexeTiNP0R5E+F7Vmy+WtN1iVJenEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIAWMOVRIG/M4hJDWAGuA9tgTG+2ydWsZJGLaH5+QQQ7AQICAAEMAgAAAAEAAAAAAAAA",
    {
      "commitment":"processed"
    }
  ]
}

Response ->

{
    "jsonrpc": "2.0",
    "result": {
        "context": {
            "apiVersion": "1.10.39",
            "slot": 153762377
        },
        "value": 5000
    },
    "id": 1
}

optout21 · 2022-10-05T07:22:02Z

optout21
Oct 5, 2022

The data in your example seems incorrect (CixBTFZoaXpHUXU1THU0eHNpam9DOXBQNEhkYjhkN1ZiS1g4MlRnOFpjeHp3aRCgjQY=).
It seems it is a Base64 encoding of a Base58 encoded data.
As I said, SigningOutput.encoded is Base58-encoded, you need to Base58 decode if you need in other format.
Also, this test data seems a bit too short, it includes only one 32-byte address (ALVhizGQu5Lu4xsijoC9pP4Hdb8d7VbKX82Tg8Zcxzwi?).
Something is very mixed up.

1 reply

blukhi99 Oct 5, 2022
Author

@catenocrypt

Input Data // Before Sign

Base64 Of InputData = CiAcCH2tNBu-UEV5Fc5D1iFAE_Nni1FrKV7JHUTkeY2ZZBIsQjVpQ1M4NnBrU0NXV1I5VTZYaUNqZ1ptS2FNTHRNbWdqYTk0d3diQVFrdnMaMgosQUxWaGl6R1F1NUx1NHhzaWpvQzlwUDRIZGI4ZDdWYktYODJUZzhaY3h6d2kQwIQ9

Error = "message": "InvalidByte(11, 45)"

After Sign

outputEncoded = 6HLjNyD5treGWAreCdQrbLvXBQ5tgKZgwzsKXVdShqHdtPtSE4XepHrzRDiWJd63tTPiWvWVUGxQJy9TvFhcdvxcAQZqSXaf2cLNKX335Ex9DeLPyXUZ9mB3cxUNaVuCW7LLbfNtoeCYtRHP58ER4awmXZbW9WpvDfaMFGSQfHcjZfkmoY9BgTFtKF9a2yAuYNeZCsy5oP1cvFfnkcJdMk9HWmAjFMjM8LJFRu8AjotovtKBrLG6xR8pzvdfctXcJL5rtWATeB47MgqCHGZ6M8GYf6J31et9g4ih5

Base64Utils.encodeUrlSafeNoPadding(Base58.decodeNoCheck(output.encoded)) =

Aeg-oLi8yFW5ltWhcbigJ3DeDAK-602ZGRHfMOr5vS0kaoRkDH9kt19xc0Z3GLGELsgcED2KGfHw53SAe3-YXQ0BAAEDRs8_juUarvw1h9HIaCqg78lBLNz1762YjzXzzqDNRhuKt6vbjWgdPu2tZl7F5OI0_RHkT4XtWbL5a03WJUl6cQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAlcnGNEya-0oVPVjM4o5-yoAs2TIYZEJBOeE7UzswzygBAgIAAQwCAAAAQEIPAAAAAAA

Error = ""message": "InvalidByte(3, 45)"

optout21 · 2022-10-06T09:57:51Z

optout21
Oct 6, 2022

My random guess is that this method expects only message, without signatures. SignatureOutput.encoded from wallet core starts out with the signature.

01 // 1 signature follows
e83ea0b8bcc855b996d5a171b8a02770de0c02beeb4d991911df30eaf9bd2d246a84640c7f64b75f7173467718b1842ec81c103d8a19f1f0e774807b7f985d0d
01 // signatures
00 // credit-only signed accounts
01 // credit-only unsigned accounts
03 // accounts
46cf3f8ee51aaefc3587d1c8682aa0efc9412cdcf5efad988f35f3cea0cd461b
8ab7abdb8d681d3eedad665ec5e4e234fd11e44f85ed59b2f96b4dd625497a71
0000000000000000000000000000000000000000000000000000000000000000
95c9c6344c9afb4a153d58cce28e7eca802cd9321864424139e13b533b30cf28 // recent blockhash
01 // instructions
02 02 0001 0c 0200000040420f

1 reply

blukhi99 Dec 27, 2022
Author

#2619 (reply in thread)

Otlichnick · 2022-10-10T06:53:45Z

Otlichnick
Oct 10, 2022

@blukhi99 did you find the way to receive correct message?

3 replies

blukhi99 Oct 10, 2022
Author

no not yet

Otlichnick Oct 10, 2022

We can use this method https://docs.solana.com/developing/clients/jsonrpc-api#getfeecalculatorforblockhash as a temporary solution, but this method is deprecated(

blukhi99 Oct 10, 2022
Author

better is to use the perfect solution I saw this method before but due to deprecated did not try

korinsek · 2022-10-14T16:53:05Z

korinsek
Oct 14, 2022

You need a transaction message without signatures for it. Trustwallet-core lib has this in C but it is not exposed. One way is that they expose it :)

The second way is more workaround that. You can remove signatures out of signed transaction message. This will help you understand the format of the transaction https://docs.solana.com/developing/programming-model/transactions#transaction-format

Here is example how you can do it in kotlin:

    /**
     * Creates transaction message, used for estimating fee. Remove signature data from the signed Solana transaction message.
     *
     * @return transaction message in Base64 encoding.
     */
    fun createTransactionMessage(signedTransactionMessage: String): String {
        val messageBytes = Base64.decode(signedTransactionMessage, 64)

        // Decode number of signatures from first 3 bytes
        val signatureCount = messageBytes.sliceArray(IntRange(0, 2)).toUByteArray().let { u16Decoder.decode(it) }

        // Remove signatures from transaction message
        return messageBytes.sliceArray(IntRange((signatureCount + signatureCount * 64u).toInt(), messageBytes.size - 1))
            .let {
                Base64.encodeToString(it, 64)
            }
    }

Implementation of u16Decoder can be based (rewritten in kotlin) on this rust implementation https://github.com/solana-labs/solana/blob/b8837c04ec3976c9c16d028fbee86f87823fb97f/sdk/program/src/short_vec.rs#L131

6 replies

blukhi99 Oct 21, 2022
Author

@korinsek
when I try to decode it throws an error as does not right the Base64 format

6JZLGesXKa22xv6sLU5fEzcjn1sTeaQJnaDsY5fATak2yMncqzABVpmB1PgQ3uEtfLTHh6DPzmRxFz62m3pEZGCvQGztbwWMqKuH9g9xYg6Ps84uicCdHshw2SvDumtT11KbjXd85fJ4B1SV9vKmsf3aA2wJoiGzaKMK7si9JXSpGQPTrZXzHt5XDpLTyPegWBhbnN6cYY6r7hwszLXebmoLPDFTxfNZmKPCCS6AyYPZxKe245xGSmLSCje6r1eAEW8h5QvJKmGgiFiek8LXNQ1o82kM5TrMibbxb

This is my encoded output

korinsek Nov 29, 2022

@blukhi99 As @catenocrypt wrote this should be now resolved because it looks like they exposed unsigned transaction. Check this PR #2699

blukhi99 Dec 21, 2022
Author

@catenocrypt

Thanks for helping for adding in Test Case but on the android side, there is no JNI method so, does not able to use that.
can you add at AnyPlanner or any other method?

optout21 Dec 27, 2022

The extra field is in the .proto object, which is 100% accessible from Android side as well.

blukhi99 Dec 27, 2022
Author

Thanks a Lot @catenocrypt it is working nice

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I am trying to getfeeformessage in SOLANA #2619

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blukhi99 Oct 4, 2022 Author

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