创建代币交易

简介

在本教程中，我们将介绍如何使用 Chaingateway V2 API 创建 ERC20（Ethereum）、BEP20（Binance Smart Chain）和 TRC20（Tron）代币交易。我们将提供多种编程语言的示例，包括 Shell（cURL）、PHP、Python 和 JavaScript。

有关获取 API key 和了解授权的信息，请参阅 ChainGateway 文档的快速开始部分。

要从 Ethereum、BSC 或 Polygon 发起交易，你的地址需要已导入 Chaingateway，或已通过 Chaingateway API 创建。否则授权流程将无法正常工作。

要创建地址，请参阅教程部分

创建 ERC20 和 BEP20 交易

在 Ethereum、Polygon（ERC20）或 Binance Smart Chain（BEP20）上进行代币交易时，你需要使用适当的参数向 Chaingateway API 发送请求。

注意

在其他区块链和网络上的用法 此代码示例在路由中以 /ethereum 作为示例。你可以随意将其替换为 /bsc、/polygon 或 /bitcoin，以在其他网络上创建。

你也可以将 https://api.chaingateway.io 替换为 https://testnet.chaingateway.io，以切换到 testnet 网络。

由于代币类型也不同，我们在此列出对应的路径：

区块链	API 路由
Ethereum	/v2/ethereum/transactions/erc20
Binance Smart Chain	/v2/bsc/transactions/bep20
Tron	/v2/tron/transactions/trc20
Polygon	/v2/polygon/transactions/erc20

参数

• from：发送方地址。
• to：接收方地址。
• amount：要发送的金额。
• contractaddress：代币的合约地址。
• password：用于加密发送方地址 keystore 文件的密码。

Authorization Header 示例

将 YOUR_API_TOKEN 替换为你的实际 API token。

代码示例

Curl

curl --request POST \
  --url https://api.chaingateway.io/v2/ethereum/transactions/erc20 \
  --header 'Accept: application/json' \
  --header 'content-type: application/json' \
  --header 'Authorization: YOUR_API_TOKEN' \
  --data '{
    "from": "0xYourSenderAddress",
    "to": "0xRecipientAddress",
    "amount": "100",
    "contractaddress": "0xTokenContractAddress",
    "password": "YourPassword"
  }'

JavaScript

const axios = require('axios');

const url = 'https://api.chaingateway.io/v2/ethereum/transactions/erc20';
const payload = {
  from: '0xYourSenderAddress',
  to: '0xRecipientAddress',
  amount: '100',
  contractaddress: '0xTokenContractAddress',
  password: 'YourPassword'
};
const headers = {
  'Accept': 'application/json',
  'content-type': 'application/json',
  'Authorization': 'YOUR_API_TOKEN'
};

axios.post(url, payload, { headers })
  .then(response => {
    console.log(response.data);
  })
  .catch(error => {
    console.error(error);
  });

Python

import requests

url = "https://api.chaingateway.io/v2/ethereum/transactions/erc20"
payload = {
    "from": "0xYourSenderAddress",
    "to": "0xRecipientAddress",
    "amount": "100",
    "contractaddress": "0xTokenContractAddress",
    "password": "YourPassword"
}
headers = {
    'Accept': 'application/json',
    'content-type': 'application/json',
    'Authorization': 'YOUR_API_TOKEN'
}

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

PHP

<?php
require 'vendor/autoload.php';

use GuzzleHttp\Client;

$client = new Client();
$response = $client->post('https://api.chaingateway.io/v2/ethereum/transactions/erc20', [
    'headers' => [
        'Accept' => 'application/json',
        'content-type' => 'application/json',
        'Authorization' => 'YOUR_API_TOKEN',
    ],
    'json' => [
        'from' => '0xYourSenderAddress',
        'to' => '0xRecipientAddress',
        'amount' => '100',
        'contractaddress' => '0xTokenContractAddress',
        'password' => 'YourPassword'
    ]
]);

echo $response->getBody();
?>

代码应返回以下响应：

{
  "status": 201,
  "ok": true,
  "message": "Succesfully created transaction",
  "data": {
    "txid": "0x73344d178812d4919e9002c560781f288030edf72ece88823ef1c377dfb71f27"
  }
}

创建 TRC20 交易

为 Tron 代币创建交易的方式几乎相同。唯一的区别是你需要提供 privateKey 而不是 password 参数。

参数

• from：发送方地址。
• to：接收方地址。
• amount：要发送的金额。
• contractaddress：代币的合约地址。
• privateKey：发送方地址的私钥。

Authorization Header 示例

将 YOUR_API_TOKEN 替换为你的实际 API token。

代码示例

Curl

curl --request POST\
  --url https://api.chaingateway.io/v2/tron/transactions/trc20\
  --header 'Accept: application/json'\
  --header 'content-type: application/json'\
  --header 'Authorization: YOUR_API_TOKEN'\
  --data '{
    "from": "TYourSenderAddress",
    "to": "TRecipientAddress",
    "amount": "100",
    "contractaddress": "TTokenContractAddress",
    "privateKey": "YourPrivateKey"
}'

Python

import requests

url = "https://api.chaingateway.io/v2/tron/transactions/trc20"
payload = {
    "from": "TYourSenderAddress",
    "to": "TRecipientAddress",
    "amount": "100",
    "contractaddress": "TTokenContractAddress",
    "privateKey": "YourPrivateKey"
}
headers = {
    'Accept': 'application/json',
    'content-type': 'application/json',
    'Authorization': 'YOUR_API_TOKEN'
}

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

JavaScript

const axios = require('axios');

const url = 'https://api.chaingateway.io/v2/tron/transactions/trc20';
const payload = {
  from: 'TYourSenderAddress',
  to: 'TRecipientAddress',
  amount: '100',
  contractaddress: 'TTokenContractAddress',
  privateKey: 'YourPrivateKey'
};
const headers = {
  'Accept': 'application/json',
  'content-type': 'application/json',
  'Authorization': 'YOUR_API_TOKEN'
};

axios.post(url, payload, { headers })
  .then(response => {
    console.log(response.data);
  })
  .catch(error => {
    console.error(error);
  });

PHP

<?php
require 'vendor/autoload.php';

use GuzzleHttp\Client;

$client = new Client();
$response = $client->post('https://api.chaingateway.io/v2/tron/transactions/trc20', [
    'headers' => [
        'Accept' => 'application/json',
        'content-type' => 'application/json',
        'Authorization' => 'YOUR_API_TOKEN',
    ],
    'json' => [
        'from' => 'TYourSenderAddress',
        'to' => 'TRecipientAddress',
        'amount' => '100',
        'contractaddress' => 'TTokenContractAddress',
        'privateKey' => 'YourPrivateKey'
    ]
]);

echo $response->getBody();
?>

代码应返回以下响应：

{
  "status": 201,
  "ok": true,
  "message": "Succesfully created transaction",
  "data": {
    "txid": "0x73344d178812d4919e9002c560781f288030edf72ece88823ef1c377dfb71f27"
  }
}