trylocatesourcetx - TON

Example code for the trylocatesourcetx JSON-RPC method. Сomplete guide on how to use trylocatesourcetx JSON-RPC in GetBlock.io Web3 documentation.

This method attempts to locate the source transaction by the destination transaction parameters. Use it to trace back from an outcome to the originating message.

Parameters

Parameter

Type

Required

Description

source

string

Yes

Source address

destination

string

Yes

Destination address

created_lt

string

Yes

Creation logical time of the message

Request Example

REST (GET):

curl --location --request GET 'https://go.getblock.io/<ACCESS-TOKEN>/tryLocateSourceTx?source=EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2&destination=EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2&created_lt=47652103000000' \
--header 'Content-Type: application/json'

JSON-RPC (POST):

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "tryLocateSourceTx",
    "params": {
        "source": "EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2",
        "destination": "EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2",
        "created_lt": "47652103000000"
    },
    "id": "getblock.io"
}'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "tryLocateSourceTx",
    "params": {
        "source": "EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2",
        "destination": "EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2",
        "created_lt": "47652103000000"
    },
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://go.getblock.io/<ACCESS-TOKEN>',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data, null, 2)))
    .catch(error => console.log(error));

import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "tryLocateSourceTx",
    "params": {
        "source": "EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2",
        "destination": "EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2",
        "created_lt": "47652103000000"
    },
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

use reqwest::Client;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();

    let payload = json!({
        "jsonrpc": "2.0",
        "method": "tryLocateSourceTx",
        "params": {
                "source": "EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2",
                "destination": "EQDtFpEwcFAEcRe5mLVh2N6C0x-_hJEM7W61_JLnSF74p4q2",
                "created_lt": "47652103000000"
        },
        "id": "getblock.io"
});

    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);

    Ok(())
}

Response Example

{
    "ok": true,
    "result": {
        "@type": "raw.transaction",
        "utime": 1737869730,
        "transaction_id": {
            "lt": "47652102999999",
            "hash": "ZyXwVu\u2026"
        }
    },
    "id": "getblock.io",
    "jsonrpc": "2.0"
}

Response Parameters

Field

Type

Description

result.transaction_id.lt

string

Logical time of the source transaction

result.transaction_id.hash

string

Hash of the source transaction

Use Cases

Tracing a destination event back to its originating transaction
Reconstructing transaction graphs in indexers
Forensics on suspicious activity

Error Handling

Status Code

Error Message

Cause

403

Forbidden

Missing or invalid <ACCESS-TOKEN>

422

Validation Error

Request parameters are missing or malformed

429

Too Many Requests

Rate limit exceeded for your plan

504

Lite Server Timeout

Upstream TON liteserver timed out

SDK Integration

import { TonClient } from '@ton/ton';

const client = new TonClient({
    endpoint: 'https://go.getblock.io/<ACCESS-TOKEN>/'
});

// The @ton/ton client wraps the same JSON-RPC methods.
// For low-level access, use client.callGetMethod or client.provider.

Previoustrylocateresulttx - TON Nexttrylocatetx - TON

Last updated 1 month ago

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