curl --request POST \
  --url https://api.hotstuff.trade/info \
  --header 'Content-Type: application/json' \
  --data '{
    "method": "instruments",
    "params": {
        "type": "perps"
    }
}'

import requests

url = "https://api.hotstuff.trade/info"
payload = {
    "method": "instruments",
    "params": {
        "type": "perps"
    }
}
response = requests.post(url, json=payload)
print(response.json())

const url = "https://api.hotstuff.trade/info";
const payload = {
  method: "instruments",
  params: {
    type: "perps",
  },
};

fetch(url, {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify(payload),
})
  .then((response) => response.json())
  .then((data) => console.log(data));

<?php
$url = "https://api.hotstuff.trade/info";
$payload = json_encode([
    "method" => "instruments",
    "params" => [
        "type" => "perps"
    ]
]);

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
$response = curl_exec($ch);
curl_close($ch);
print_r(json_decode($response, true));
?>

package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "io/ioutil"
    "net/http"
)

func main() {
    url := "https://api.hotstuff.trade/info"
    payload := map[string]interface{}{
        "method": "instruments",
        "params": map[string]string{
            "type": "perps",
        },
    }

    jsonData, _ := json.Marshal(payload)
    resp, _ := http.Post(url, "application/json", bytes.NewBuffer(jsonData))
    defer resp.Body.Close()
    body, _ := ioutil.ReadAll(resp.Body)
    fmt.Println(string(body))
}

import java.net.HttpURLConnection;
import java.net.URL;
import java.io.*;

URL url = new URL("https://api.hotstuff.trade/info");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json");
conn.setDoOutput(true);

String jsonPayload = "{\"method\":\"instruments\",\"params\":{\"type\":\"perps\"}}";
OutputStream os = conn.getOutputStream();
os.write(jsonPayload.getBytes());
os.flush();

BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String response = in.readLine();
System.out.println(response);

require 'net/http'
require 'json'

uri = URI('https://api.hotstuff.trade/info')
payload = {
  method: "instruments",
  params: {
    type: "perps"
  }
}

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
request = Net::HTTP::Post.new(uri.path, 'Content-Type' => 'application/json')
request.body = payload.to_json
response = http.request(request)
puts JSON.parse(response.body)