Place a Multileg Order

// Version 1.8.0_31    
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

public class MainClass {
  public static void main(String[] args) throws IOException {
    final HttpUriRequest request = RequestBuilder
        .post("https://api.tradier.com/v1/accounts/{account_id}/orders")
        .addHeader("Authorization", "Bearer <TOKEN>")
        .addHeader("Accept", "application/json")
        .addParameter("class", "multileg")
        .addParameter("symbol", "SPY")
        .addParameter("type", "market")
        .addParameter("duration", "day")
        .addParameter("price", "1.0")
        .addParameter("option_symbol[0]", "SPY190605C00282000")
        .addParameter("side[0]", "buy_to_open")
        .addParameter("quantity[0]", "10")
        .addParameter("option_symbol[1]", "SPY190605C00286000")
        .addParameter("side[1]", "buy_to_close")
        .addParameter("quantity[1]", "10")
        .build();

    final HttpResponse response = HttpClientBuilder.create().build().execute(request);
    final String jsonString = EntityUtils.toString(response.getEntity());
    final JsonNode json = new ObjectMapper().readTree(jsonString);
    
    System.out.println(response.getStatusLine().getStatusCode());
    System.out.println(json);
  }
}

# Version 2.5.0p0    
require 'uri'
require 'net/http'

url = URI("https://api.tradier.com/v1/accounts/{account_id}/orders")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <TOKEN>'
request["Accept"] = 'application/json'
request["Content-Type"] = 'application/x-www-form-urlencoded'
request.body = "class=multileg&symbol=SPY&type=market&duration=day&price=1.0&option_symbol[0]=SPY190605C00282000&side[0]=buy_to_open&quantity[0]=10&option_symbol[1]=SPY190605C00286000&side[1]=buy_to_close&quantity[1]=10"

response = http.request(request)
puts response.code
puts response.read_body

// Version go1.12      
package main

import (
    "fmt"
    "net/http"
    "net/url"
    "io/ioutil"
    "log"
    "strconv"
    "strings"
)

func main() {
    apiUrl := "https://api.tradier.com/v1/accounts/{account_id}/orders"
    data := url.Values{} 
    data.Set("class", "multileg") 
    data.Set("symbol", "SPY") 
    data.Set("type", "market") 
    data.Set("duration", "day") 
    data.Set("price", "1.0") 
    data.Set("option_symbol[0]", "SPY190605C00282000") 
    data.Set("side[0]", "buy_to_open") 
    data.Set("quantity[0]", "10") 
    data.Set("option_symbol[1]", "SPY190605C00286000") 
    data.Set("side[1]", "buy_to_close") 
    data.Set("quantity[1]", "10")

    u, _ := url.ParseRequestURI(apiUrl)
    urlStr := u.String()

    client := &http.Client{}
    r, _ := http.NewRequest("POST", urlStr, strings.NewReader(data.Encode()))
    r.Header.Add("Authorization", "Bearer <TOKEN>")
    r.Header.Add("Accept", "application/json")
    r.Header.Add("Content-Type", "application/x-www-form-urlencoded")
    r.Header.Add("Content-Length", strconv.Itoa(len(data.Encode())))

    resp, _ := client.Do(r)
    responseData, err := ioutil.ReadAll(resp.Body)

    if err != nil {
      log.Fatal(err)
    }

    fmt.Println(resp.Status)
    fmt.Println(string(responseData))
}

// Version 4.6.2.0    
using System;
using System.Net;  
using System.IO;
using System.Text;

public class MainClass {
  public static void Main (string[] args) {
    var request = (HttpWebRequest)WebRequest.Create("https://api.tradier.com/v1/accounts/{account_id}/orders");
    var requestData = "class=multileg&symbol=SPY&type=market&duration=day&price=1.0&option_symbol[0]=SPY190605C00282000&side[0]=buy_to_open&quantity[0]=10&option_symbol[1]=SPY190605C00286000&side[1]=buy_to_close&quantity[1]=10";
    var data = Encoding.ASCII.GetBytes(requestData);
    
    request.Method = "POST";
    request.Headers["Authorization"] = "Bearer <TOKEN>";
    request.Accept = "application/json";
    request.ContentType = "application/x-www-form-urlencoded";
    request.ContentLength = data.Length;

    using (var stream = request.GetRequestStream())
     {
         stream.Write(data, 0, data.Length);
     }

    var response = (HttpWebResponse)request.GetResponse();

    Console.WriteLine (response.StatusCode);
    var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
    Console.WriteLine (responseString);
  }
}

// Version 10.15.2    
const request = require('request');

request({
    method: 'post',
    url: 'https://api.tradier.com/v1/accounts/{account_id}/orders',
    form: {
       'class': 'multileg',
       'symbol': 'SPY',
       'type': 'market',
       'duration': 'day',
       'price': '1.0',
       'option_symbol[0]': 'SPY190605C00282000',
       'side[0]': 'buy_to_open',
       'quantity[0]': '10',
       'option_symbol[1]': 'SPY190605C00286000',
       'side[1]': 'buy_to_close',
       'quantity[1]': '10'
    },
    headers: {
      'Authorization': 'Bearer <TOKEN>',
      'Accept': 'application/json'
    }
  }, (error, response, body) => {
      console.log(response.statusCode);
      console.log(body);
  });

# Version 3.6.1    
import requests

response = requests.post('https://api.tradier.com/v1/accounts/{account_id}/orders',
    data={'class': 'multileg', 'symbol': 'SPY', 'type': 'market', 'duration': 'day', 'price': '1.0', 'option_symbol[0]': 'SPY190605C00282000', 'side[0]': 'buy_to_open', 'quantity[0]': '10', 'option_symbol[1]': 'SPY190605C00286000', 'side[1]': 'buy_to_close', 'quantity[1]': '10'},
    headers={'Authorization': 'Bearer <TOKEN>', 'Accept': 'application/json'}
)
json_response = response.json()
print(response.status_code)
print(json_response)

<?php
// Version 7.2.17-0ubuntu0.18.04.1
$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://api.tradier.com/v1/accounts/{account_id}/orders');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, 'class=multileg&symbol=SPY&type=market&duration=day&price=1.0&option_symbol[0]=SPY190605C00282000&side[0]=buy_to_open&quantity[0]=10&option_symbol[1]=SPY190605C00286000&side[1]=buy_to_close&quantity[1]=10');

$headers = array();
$headers[] = 'Authorization: Bearer <TOKEN>';
$headers[] = 'Accept: application/json';
$headers[] = 'Content-Type: application/x-www-form-urlencoded';
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$result = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close ($ch);
echo $http_code;
echo $result;