Chinese Precious Metals Futures Contracts

curl --request POST \
  --url 'https://openapi.toolkk.com/v1/precious-metal-domestic-contract' \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: YOUR_API_KEY' \
  --data '{\n  "symbol": "国内贵金属品种，详见国内贵金属现货，详见国内贵金属期货"\n}'

import os
import requests

url = "https://openapi.toolkk.com/v1/precious-metal-domestic-contract"
payload = {
  "symbol": "国内贵金属品种，详见国内贵金属现货，详见国内贵金属期货"
}

headers = {
    "Content-Type": "application/json",
    "X-API-Key": os.getenv("TOOLKK_API_KEY", "YOUR_API_KEY"),
}

response = requests.request("POST", url, headers=headers, json=payload, timeout=30)
response.raise_for_status()
print(response.json())

package main

import (
    "bytes"
    "fmt"
    "io"
    "net/http"
)

func main() {
    endpoint := "https://openapi.toolkk.com/v1/precious-metal-domestic-contract"
    payload := []byte("{\n  \"symbol\": \"国内贵金属品种，详见国内贵金属现货，详见国内贵金属期货\"\n}")

    req, err := http.NewRequest("POST", endpoint, bytes.NewBuffer(payload))
    if err != nil {
        panic(err)
    }

    req.Header.Set("Content-Type", "application/json")
    req.Header.Set("X-API-Key", "YOUR_API_KEY")

    resp, err := http.DefaultClient.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, err := io.ReadAll(resp.Body)
    if err != nil {
        panic(err)
    }

    fmt.Println(string(body))
}

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class ToolkkExample {
    public static void main(String[] args) throws Exception {
        String payload = "{\n  \"symbol\": \"国内贵金属品种，详见国内贵金属现货，详见国内贵金属期货\"\n}";

        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://openapi.toolkk.com/v1/precious-metal-domestic-contract"))
            .method("POST", HttpRequest.BodyPublishers.ofString(payload))
            .header("Content-Type", "application/json")
            .header("X-API-Key", "YOUR_API_KEY")
            .build();

        HttpResponse<String> response = HttpClient.newHttpClient()
            .send(request, HttpResponse.BodyHandlers.ofString());

        System.out.println(response.body());
    }
}

<?php

$endpoint = 'https://openapi.toolkk.com/v1/precious-metal-domestic-contract';
$payload = "{\n  \"symbol\": \"国内贵金属品种，详见国内贵金属现货，详见国内贵金属期货\"\n}";

$ch = curl_init($endpoint);
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_HTTPHEADER => [
        'Content-Type: application/json',
        'X-API-Key: YOUR_API_KEY',
    ],
    CURLOPT_POSTFIELDS => $payload,
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new RuntimeException(curl_error($ch));
}

curl_close($ch);
echo $response;