How to decode the data in transaction? #53

freddieee · 2019-06-10T20:26:19Z

Hi, I noticed in the docs that the data in tx is encoded in Amino logic. Is there any handy tool or library to decode these content? Appreciate for any insights : )

ruslansalikhov · 2019-06-11T05:01:28Z

example in golang

package main

import (
    "encoding/json"
    "fmt"
    "github.com/binance-chain/go-sdk/client/rpc"
    ctypes "github.com/binance-chain/go-sdk/common/types"
    "github.com/binance-chain/go-sdk/types"
    "github.com/binance-chain/go-sdk/types/tx"
)

func main() {
    nodeAddr := "tcp://127.0.0.1:27147"
    client := rpc.NewRPCClient(nodeAddr, ctypes.ProdNetwork)

    codec := types.NewCodec()

    number := int64(8095579)
    //number := int64(8643229)
    res, _ := client.Block(&number)
    txs := res.Block.Data.Txs

    parsedTxs := make([]tx.StdTx, len(txs))
    for i := range txs {
        err := codec.UnmarshalBinaryLengthPrefixed(txs[i], &parsedTxs[i])
        if err != nil {
            fmt.Println("Error - codec unmarshal")
            return
        }
    }

    bz, err := json.Marshal(parsedTxs)

    if err != nil {
       fmt.Println("Error - json marshal")
       return
    }

    fmt.Println(string(bz))
}

freddieee · 2019-06-12T18:50:18Z

thanks @huangsuyu , @ruslansalikhov ! Both of yours are very helpful to me!

amjadDev · 2019-06-22T23:24:09Z

hello @ruslansalikhov i am done with this issue using go language except transaction hash can you guide me what method i need to use for transaction id like
17E6A0811811B75BB94FA8955295D7E2B5D9DA05E6A092685EA946D42E03614C
refrence
https://explorer.binance.org/tx/17E6A0811811B75BB94FA8955295D7E2B5D9DA05E6A092685EA946D42E03614C
Code:

var ParseAminoTx = func(w http.ResponseWriter, r * http.Request) {

    codec: = types.NewCodec()
    decodetx64,
    err: = base64.StdEncoding.DecodeString("yAHwYl3uClAqLIf6CiQKFP6aa5bCfSjIPBZs4zrEml5FE+ISEgwKA0JOQhCem7a3ggESJAoU/imIh6AV6Ub6fhN01DL9AChX0cISDAoDQk5CEJ6btreCARJwCibrWumHIQOlVsK2sHBzehAuYoMcln0SdKFG6Ud5NZpkiv/jcUJRSxJAP66nAeKx/671oBzc37WRnxxXCOxmIJOdCCZEEeSxiv1ualjMoI7sKDiZoTHzS6e1mpjqIa2MHYEM/Tq99+BfCRjC1wEgTQ==")

    if err != nil {
            fmt.Println("error:", err)
    }

    txs: = [] string {
            string(decodetx64)
    }

            parsedTxs: = make([] tx.StdTx, len(txs))
    for i: = range txs {
            err: = codec.UnmarshalBinaryLengthPrefixed([] byte(txs[i]), & parsedTxs[i])

            if err != nil {
                    fmt.Println("Error - codec unmarshal")
            }
    }

            bz,
    err: = json.Marshal(parsedTxs)

    if err != nil {
            fmt.Println("Error - json marshal")

    }
    u.Respond(w, u.Message(true, string(bz)))

}

output

{"message":"[{"msg":[{"inputs":[{"address":"bnb1l6dxh9kz055vs0qkdn3n43y6tez38csj4q7x5d","coins":[{"denom":"BNB","amount":35012840862}]}],"outputs":[{"address":"bnb1lc5c3paqzh55d7n7zd6dgvhaqq5905wzr849tj","coins":[{"denom":"BNB","amount":35012840862}]}]}],"signatures":[{"pub_key":[3,165,86,194,182,176,112,115,122,16,46,98,131,28,150,125,18,116,161,70,233,71,121,53,154,100,138,255,227,113,66,81,75],"signature":"P66nAeKx/671oBzc37WRnxxXCOxmIJOdCCZEEeSxiv1ualjMoI7sKDiZoTHzS6e1mpjqIa2MHYEM/Tq99+BfCQ==","account_number":27586,"sequence":77}],"memo":"","source":0,"data":null}]","status":true}

chainwhisper · 2019-06-25T04:01:10Z

Hello, @amjadDev
you can use parsedTxs[i].Hash()

amjadDev · 2019-06-25T17:20:03Z

Hello, @amjadDev
you can use parsedTxs[i].Hash()

i tired got this error
parsedTxs[i].Hash undefined (type tx.StdTx has no field or method Hash)
m missing any function or package?

amjadDev · 2019-06-25T17:47:28Z

Hello, @amjadDev
you can use parsedTxs[i].Hash()

i tired got this error
parsedTxs[i].Hash undefined (type tx.StdTx has no field or method Hash)
m missing any function or package?

thanks !!

sorted

decodetx64, err := base64.StdEncoding.DecodeString("ygHwYl3uClAqLIf6CiQKFJGTdSD0BFj1tBTSZ5YbRsGXid1wEgwKA0JOQhCAmpGy9gISJAoUNZyodQE2lvxtwuhMFhar4FgLeWESDAoDQk5CEICakbL2AhJwCibrWumHIQNW4KWAOJpv0syRzVJcbVpNgFSvcN8XSE5YZ4+fV0oLTRJAmEC1SzRLFtH+xCE/0ajwJGYaLw4AqdoMqZHVQlxc1rQHCsnkC8/qYTKKd+MZvPmhRfvp12fSRf93olACfFnLwxgzIPmDBSAC")
sha256 := sha256.Sum256([]byte(decodetx64))
fmt.Printf("%x\n", sha256)

this is working for me.

blockmonk · 2019-07-22T17:58:15Z

Hello, @amjadDev
you can use parsedTxs[i].Hash()

@huangsuyu I am trying to get transaction data from data_hash

"data_hash": "A7044A2430D5F4F461A59E1634F4739B1128912946424A207A73F27B7FCA1C29",

what decryption should i need to use. here is my block result

"block_id": {
"hash": "09F845024BD5313129374DE2ED8F187A1F21373580178A7E18BF8D6352E133F3",
"parts": {
"total": "1",
"hash": "E6995EC7B04C8D5F686AE0C0AD92C189445B9A975600B3166B243573D059D548"
}
},
"header": {
"version": {
"block": "10",
"app": "0"
},
"chain_id": "Binance-Chain-Tigris",
"height": "21993735",
"time": "2019-07-22T15:48:10.041358386Z",
"num_txs": "2",
"total_txs": "6132889",
"last_block_id": {
"hash": "2EF6A9B6BA8AD1CBF5E7C382906C9CBECD5958143CB9C185EA0235541015482E",
"parts": {
"total": "1",
"hash": "4C9D00EC8E5EABD25482BD49CBE89A0AA8D435514C8202F119087A9E471EF0B0"
}
},
"last_commit_hash": "5BBAB5A23DC5E69360EBF8697A011A68CD277061ECB66216DD5CC54B7E26C75D",
"data_hash": "A7044A2430D5F4F461A59E1634F4739B1128912946424A207A73F27B7FCA1C29",
"validators_hash": "43C53A50D8653EF8CF1E5716DA68120FB51B636DC6D111EC3277B098ECD42D49",
"next_validators_hash": "43C53A50D8653EF8CF1E5716DA68120FB51B636DC6D111EC3277B098ECD42D49",
"consensus_hash": "294D8FBD0B94B767A7EBA9840F299A3586DA7FE6B5DEAD3B7EECBA193C400F93",
"app_hash": "B30FE7AACEADCB5AAD748CB3088AD3530BC21FB5205C06A242A14ACDB62ECEFC",
"last_results_hash": "",
"evidence_hash": "",
"proposer_address": "3CD4AABABDDEB7ABFEA9618732E331077A861D2B"
}

oom-tesla · 2019-08-15T09:00:51Z

example in golang

package main

import (
    "encoding/json"
    "fmt"
    "github.com/binance-chain/go-sdk/client/rpc"
    ctypes "github.com/binance-chain/go-sdk/common/types"
    "github.com/binance-chain/go-sdk/types"
    "github.com/binance-chain/go-sdk/types/tx"
)

func main() {
    nodeAddr := "tcp://127.0.0.1:27147"
    client := rpc.NewRPCClient(nodeAddr, ctypes.ProdNetwork)

    codec := types.NewCodec()

    number := int64(8095579)
    //number := int64(8643229)
    res, _ := client.Block(&number)
    txs := res.Block.Data.Txs

    parsedTxs := make([]tx.StdTx, len(txs))
    for i := range txs {
        err := codec.UnmarshalBinaryLengthPrefixed(txs[i], &parsedTxs[i])
        if err != nil {
            fmt.Println("Error - codec unmarshal")
            return
        }
    }

    bz, err := json.Marshal(parsedTxs)

    if err != nil {
       fmt.Println("Error - json marshal")
       return
    }

    fmt.Println(string(bz))
}

Hi @ruslansalikhov Do you have example in Node Js?

oom-tesla · 2019-08-15T09:10:12Z

Hello, @amjadDev
you can use parsedTxs[i].Hash()

i tired got this error
parsedTxs[i].Hash undefined (type tx.StdTx has no field or method Hash)
m missing any function or package?

thanks !!

sorted

decodetx64, err := base64.StdEncoding.DecodeString("ygHwYl3uClAqLIf6CiQKFJGTdSD0BFj1tBTSZ5YbRsGXid1wEgwKA0JOQhCAmpGy9gISJAoUNZyodQE2lvxtwuhMFhar4FgLeWESDAoDQk5CEICakbL2AhJwCibrWumHIQNW4KWAOJpv0syRzVJcbVpNgFSvcN8XSE5YZ4+fV0oLTRJAmEC1SzRLFtH+xCE/0ajwJGYaLw4AqdoMqZHVQlxc1rQHCsnkC8/qYTKKd+MZvPmhRfvp12fSRf93olACfFnLwxgzIPmDBSAC")
sha256 := sha256.Sum256([]byte(decodetx64))
fmt.Printf("%x\n", sha256)

this is working for me.

Hi @amjadDev I need to get transaction hash as well using Node JS If you can guide me how to do it would be very helpful.

alexspark21 · 2020-01-15T14:49:49Z

Any news? I have at the same trouble with JS sdk

blockmonk · 2020-01-15T15:17:12Z

please check binance javascript sdk.
https://github.com/binance-chain/javascript-sdk

blockmonk · 2020-01-15T15:29:48Z

@alexspark21 if u needed I will provide Golang code in form of REST API where you can pass the hash from your js application and will receive txid.

alexspark21 · 2020-01-16T11:05:35Z

@blockmonk JS SDK for now not supported Transfer type, and I can't decode encoded response from RPC to human response which doing perfectly HTTP API endpoint https://dex.binance.org/api/v1/transactions-in-block/61989125

chainwhisper mentioned this issue Aug 7, 2019

How to make the Node decode transactions #96

Closed

chainwhisper mentioned this issue Dec 23, 2019

curl 'localhost:27147/block?height=10' #176

Closed

This was referenced Feb 26, 2020

How does slice decoding is done? tendermint/go-amino#309

Closed

How does slice ([]byte) decoding is done? bnb-chain/bnc-go-amino#3

Closed

chainwhisper mentioned this issue Mar 20, 2020

Question about the result of a success/fail in transaction #199

Closed

freddieee closed this as completed Sep 2, 2020

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How to decode the data in transaction? #53

How to decode the data in transaction? #53

freddieee commented Jun 10, 2019

ruslansalikhov commented Jun 11, 2019

freddieee commented Jun 12, 2019

amjadDev commented Jun 22, 2019 •

edited

chainwhisper commented Jun 25, 2019 •

edited

amjadDev commented Jun 25, 2019

amjadDev commented Jun 25, 2019

blockmonk commented Jul 22, 2019

oom-tesla commented Aug 15, 2019

oom-tesla commented Aug 15, 2019

alexspark21 commented Jan 15, 2020

blockmonk commented Jan 15, 2020

blockmonk commented Jan 15, 2020

alexspark21 commented Jan 16, 2020

How to decode the data in transaction? #53

How to decode the data in transaction? #53

Comments

freddieee commented Jun 10, 2019

ruslansalikhov commented Jun 11, 2019

freddieee commented Jun 12, 2019

amjadDev commented Jun 22, 2019 • edited

chainwhisper commented Jun 25, 2019 • edited

amjadDev commented Jun 25, 2019

amjadDev commented Jun 25, 2019

blockmonk commented Jul 22, 2019

oom-tesla commented Aug 15, 2019

oom-tesla commented Aug 15, 2019

alexspark21 commented Jan 15, 2020

blockmonk commented Jan 15, 2020

blockmonk commented Jan 15, 2020

alexspark21 commented Jan 16, 2020

amjadDev commented Jun 22, 2019 •

edited

chainwhisper commented Jun 25, 2019 •

edited