Official SDK

Official SDK

Demo Url

http s://g ithub.com/exchange2021

Signed example

/**
* generate sign
**/
private String toSign(String timestamp, String method, String requestPath,
String queryString, String body, String secretKe
// sign
String preHash = preHash(timestamp, method, requestPath, queryString, bod byte[] secretKeyBytes = secretKey.getBytes("UTF-8");
SecretKeySpec secretKeySpec = new SecretKeySpec(secretKeyBytes, "HmacSHA2 Mac mac = (Mac) MAC.clone();
mac.init(secretKeySpec);
return Hex.encodeHexString(mac.doFinal(preHash.getBytes("UTF-8")));
}
/**
* sign
**/
private String preHash(String timestamp, String method, String requestPath, S
StringBuilder preHash = new StringBuilder(); preHash.append(timestamp); preHash.append(method.toUpperCase()); preHash.append(requestPath);
if (org.apache.commons.lang3.StringUtils.isNotEmpty(queryString)) { preHash.append("?").append(queryString);
}
if (org.apache.commons.lang3.StringUtils.isNotEmpty(body)) { preHash.append(body);
}
return preHash.toString();
}
/**
* queryString
**/
private String queryString(ServerHttpRequest request) { String url = request.getURI().toString();
String queryString = ""; if (url.contains("?")) {
queryString = url.substring(url.lastIndexOf("?") + 1);
}
return queryString;
}

Here is a example of how to create order

Java

OkHttpClient client = new OkHttpClient().newBuilder()
.build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{\"symbol\":\"BTCUSDT\",\"v Request request = new Request.Builder()
.url("https://openapi.xxx.com")
.method("POST", body)
.addHeader("X-CH-APIKEY", "Your API key")
.addHeader("X-CH-TS", "1596543296058")
.addHeader("Content-Type", "application/json")
.addHeader("X-CH-SIGN", "encrypt sign")
.build();
Response response = client.newCall(request).execute();

• Go

package main
import ( "fmt" "strings" "net/http" "io/ioutil"
)
func main() {
url := "https://openapi.xxx.com" method := "POST"
payload := strings.NewReader("{\"symbol\":\"BTCUSDT\",\"volume\":1,\"side\"
client := &http.Client {
}
req, err := http.NewRequest(method, url, payload)
if err != nil { fmt.Println(err)
}
req.Header.Add("X-CH-APIKEY", "Your API key") req.Header.Add("X-CH-TS", "1596543881257")
req.Header.Add("Content-Type", "application/json") req.Header.Add("X-CH-SIGN", "encrypt sign")
res, err := client.Do(req) defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
fmt.Println(string(body))
}

Python

import requests

url = "https://openapi.xxx.com"

payload = "{\"symbol\":\"BTCUSDT\",\"volume\":1,\"side\":\"BUY\",\"type\":\"LIMIT\",\"price\":10000,\"newClientOrderId\":\"\",\"recvWindow\":5000}"
headers = {
  'X-CH-APIKEY': 'Your API key',
  'X-CH-TS': '1596543881257',
  'Content-Type': 'application/json',
  'X-CH-SIGN': 'encrypt sign'
}

response = requests.request("POST", url, headers=headers, data = payload)

print(response.text.encode('utf8'))

• Php

import requests
url = "https://openapi.xxx.com"
payload = "{\"symbol\":\"BTCUSDT\",\"volume\":1,\"side\":\"BUY\",\"type\":\"LI headers = {
'X-CH-APIKEY': 'Your API key', 'X-CH-TS': '1596543881257',
'Content-Type': 'application/json', 'X-CH-SIGN': 'encrypt sign'
}
response = requests.request("POST", url, headers=headers, data = payload) print(response.text.encode('utf8'))
<?php
require_once 'HTTP/Request2.php';
$request = new HTTP_Request2();
$request->setUrl('https://openapi.xxx.com');
$request->setMethod(HTTP_Request2::METHOD_POST);
$request->setConfig(array( 'follow_redirects' => TRUE
));
$request->setHeader(array(
'X-CH-APIKEY' => 'Your API key', 'X-CH-TS' => '1596543881257',
'Content-Type' => 'application/json', 'X-CH-SIGN' => 'encrypt sign'
));
$request->setBody('{"symbol":"BTCUSDT","volume":1,"side":"BUY","type":"LIMIT" try {
$response = $request->send();
if ($response->getStatus() == 200) { echo $response->getBody();
}
else {
echo 'Unexpected HTTP status: ' . $response->getStatus() . ' ' .
$response->getReasonPhrase();
}
}
catch(HTTP_Request2_Exception $e) { echo 'Error: ' . $e->getMessage();
}

NodeJs

var request = require('request'); var options = {
'method': 'POST',
'url': 'https://openapi.xxx.com', 'headers': {
'X-CH-APIKEY': 'Your API key', 'X-CH-TS': '1596543881257',
'Content-Type': 'application/json', 'X-CH-SIGN': 'encrypt sign'
},
body: JSON.stringify({"symbol":"BTCUSDT","volume":1,"side":"BUY","type":"LI
};
request(options, function (error, response) { if (error) throw new Error(error); console.log(response.body);
});