sendboc - TON

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

This method broadcasts a serialized Bag of Cells (BOC) — a signed external message — to the TON blockchain for execution. It is the standard method for submitting transactions from wallets and dApps.

Parameters

Parameter

Type

Required

Description

boc

string

Yes

Base64-encoded BOC of the signed external message

Request Example

JSON-RPC (POST):

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "sendBoc",
    "params": {
        "boc": "te6cckEBAQEAUgAAn/8AIN0gggFMl7qXMO1E0NcLH+Ck8mCDCNcYINMf0x/THwL4I7vyZO1E0NMf0x/T//QE0VFDuvKhUVG68qIG+QFUEHb5EPKj+CO78mPtRNDXCx/jAFETuvKh1AAQc8L/8tCD"
    },
    "id": "getblock.io"
}'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "sendBoc",
    "params": {
        "boc": "te6cckEBAQEAUgAAn/8AIN0gggFMl7qXMO1E0NcLH+Ck8mCDCNcYINMf0x/THwL4I7vyZO1E0NMf0x/T//QE0VFDuvKhUVG68qIG+QFUEHb5EPKj+CO78mPtRNDXCx/jAFETuvKh1AAQc8L/8tCD"
    },
    "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": "sendBoc",
    "params": {
        "boc": "te6cckEBAQEAUgAAn/8AIN0gggFMl7qXMO1E0NcLH+Ck8mCDCNcYINMf0x/THwL4I7vyZO1E0NMf0x/T//QE0VFDuvKhUVG68qIG+QFUEHb5EPKj+CO78mPtRNDXCx/jAFETuvKh1AAQc8L/8tCD"
    },
    "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": "sendBoc",
        "params": {
            "boc": "te6cckEBAQEAUgAAn/8AIN0gggFMl7qXMO1E0NcLH+Ck8mCDCNcYINMf0x/THwL4I7vyZO1E0NMf0x/T//QE0VFDuvKhUVG68qIG+QFUEHb5EPKj+CO78mPtRNDXCx/jAFETuvKh1AAQc8L/8tCD"
        },
        "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": "ok"
    },
    "id": "getblock.io",
    "jsonrpc": "2.0"
}

Response Parameters

Field

Type

Description

boolean

Whether the BOC was accepted for broadcast

result.@type

string

Always ok on success

Use Cases

Submitting wallet transfers from dApps
Broadcasting smart contract deploys
Sending Jetton or NFT transfer messages
Any state-mutating interaction with the TON blockchain

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

422

Validation Error

BOC payload is malformed or invalid base64

500

Liteserver rejected message

Message failed validity checks (bad signature, insufficient gas, replay)

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.

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Last updated 24 days ago

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