curl --location --request POST 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list' --header 'Authorization: Bearer YOUR_API_KEY' --header 'Content-Type: application/json' --data-raw '{}'

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{}");
Request request = new Request.Builder()
  .url("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list")
  .method("POST", body)
  .addHeader("Content-Type", "application/json")
  .addHeader("Authorization", "Bearer YOUR_API_KEY")
  .build();
Response response = client.newCall(request).execute();

var settings = {
  "url": "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list",
  "method": "POST",
  "timeout": 0,
  "headers": {
    "Content-Type": "application/json",
    "Authorization": "Bearer YOUR_API_KEY"
  },
  "data": JSON.stringify({
      })
};

$.ajax(settings).done(function (response) {
  console.log(response);
});

var data = JSON.stringify({
  });

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function() {
  if(this.readyState === 4) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list");
xhr.setRequestHeader("Content-Type", "application/json");
xhr.setRequestHeader("Authorization", "Bearer YOUR_API_KEY");

xhr.send(data);

var axios = require('axios');
var data = {
  };

var config = {
  method: 'POST',
  url: 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list',
  headers: { 
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  data : data
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS => '{}',
  CURLOPT_HTTPHEADER => array(
    'Content-Type: application/json',
    'Authorization: Bearer YOUR_API_KEY'
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

import requests

url = "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list"

payload = {
    }
headers = {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
}

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

print(response.text)

require 'uri'
require 'net/http'
require 'json'

url = URI("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list")

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

request = Net::HTTP::POST.new(url)
request["Content-Type"] = 'application/json'
request["Authorization"] = 'Bearer YOUR_API_KEY'
request.body = JSON.dump({
  })

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

printf '{"request_body":"Required"}' | \
http --follow --timeout 3600 POST 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list' \
Content-Type:application/json \
Authorization:'Bearer YOUR_API_KEY'

var client = new RestClient("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddHeader("Authorization", "Bearer YOUR_API_KEY");

var body = new {
    request_body = "Required"
};
request.AddJsonBody(body);

IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

package main

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

func main() {
    url := "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list"
    method := "POST"

    client := &http.Client {}
    req, err := http.NewRequest(method, url, nil)
    if err != nil {
        fmt.Println(err)
        return
    }

    req.Header.Add("Content-Type", "application/json")
    req.Header.Add("Authorization", "Bearer YOUR_API_KEY")

    res, err := client.Do(req)
    if err != nil {
        fmt.Println(err)
        return
    }
    defer res.Body.Close()

    body, err := ioutil.ReadAll(res.Body)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(string(body))
}

import Foundation

let url = URL(string: "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("Bearer YOUR_API_KEY", forHTTPHeaderField: "Authorization")

let json: [String: Any] = [
]

request.httpBody = try? JSONSerialization.data(withJSONObject: json)

let task = URLSession.shared.dataTask(with: request) { data, _, error in
    if let error = error {
        print(error.localizedDescription)
        return
    }
    if let data = data {
        print(String(decoding: data, as: UTF8.self))
    }
}

task.resume()

import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody

fun main() {
    val client = OkHttpClient()

    val json = """
{

    }""".trimIndent()

    val mediaType = "application/json".toMediaType()
    val body = json.toRequestBody(mediaType)

    val request = Request.Builder()
        .url("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list")
        .method("POST", body)
        .addHeader("Content-Type", "application/json")
        .addHeader("Authorization", "Bearer YOUR_API_KEY")
        .build()

    client.newCall(request).execute().use { response ->
        println(response.body?.string())
    }
}

import 'dart:convert';
import 'package:http/http.dart' as http;

Future main() async {
  final url = Uri.parse('https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list');

  final body = jsonEncode({
  });

  final response = await http.post(
    url,
    headers: {
      'Content-Type': 'application/json',
      'Authorization': 'Bearer YOUR_API_KEY',
    },
    body: body,
  );

  print(response.body);
}

use reqwest::blocking::Client;
use serde_json::json;
use std::error::Error;

fn main() -> Result<(), Box> {
    let client = Client::new();

    let body = json!({
    });

    let response = client
        .request(reqwest::Method::POST, "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8611/obtain+countries+list")
        .header("Content-Type", "application/json")
        .header("Authorization", "Bearer YOUR_API_KEY")
        .json(&body)
        .send()?;

    println!("{}", response.text()?);
    Ok(())
}

curl --location --request POST 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country' --header 'Authorization: Bearer YOUR_API_KEY' --header 'Content-Type: application/json' --data-raw '{"country":"Required"}'

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{"country":"Required"}");
Request request = new Request.Builder()
  .url("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country")
  .method("POST", body)
  .addHeader("Content-Type", "application/json")
  .addHeader("Authorization", "Bearer YOUR_API_KEY")
  .build();
Response response = client.newCall(request).execute();

var settings = {
  "url": "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country",
  "method": "POST",
  "timeout": 0,
  "headers": {
    "Content-Type": "application/json",
    "Authorization": "Bearer YOUR_API_KEY"
  },
  "data": JSON.stringify({
    "country":"Required"  })
};

$.ajax(settings).done(function (response) {
  console.log(response);
});

var data = JSON.stringify({
  "country":"Required"});

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function() {
  if(this.readyState === 4) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country");
xhr.setRequestHeader("Content-Type", "application/json");
xhr.setRequestHeader("Authorization", "Bearer YOUR_API_KEY");

xhr.send(data);

var axios = require('axios');
var data = {
  "country":"Required"};

var config = {
  method: 'POST',
  url: 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country',
  headers: { 
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  data : data
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS => '{"country":"Required"}',
  CURLOPT_HTTPHEADER => array(
    'Content-Type: application/json',
    'Authorization: Bearer YOUR_API_KEY'
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

import requests

url = "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country"

payload = {
    "country":"Required"}
headers = {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
}

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

print(response.text)

require 'uri'
require 'net/http'
require 'json'

url = URI("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country")

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

request = Net::HTTP::POST.new(url)
request["Content-Type"] = 'application/json'
request["Authorization"] = 'Bearer YOUR_API_KEY'
request.body = JSON.dump({
  "country" => "Required"})

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

printf '{"country":"Required"}' | \
http --follow --timeout 3600 POST 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country' \
Content-Type:application/json \
Authorization:'Bearer YOUR_API_KEY'

var client = new RestClient("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddHeader("Authorization", "Bearer YOUR_API_KEY");

var body = new {
    country = "Required"
};
request.AddJsonBody(body);

IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

package main

import (
    "fmt"
    "strings"
    "net/http"
    "io/ioutil"
)

func main() {
    url := "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country"
    method := "POST"
    payload := strings.NewReader(`{"country":"Required"}`)

    client := &http.Client {}
    req, err := http.NewRequest(method, url, payload)
    if err != nil {
        fmt.Println(err)
        return
    }

    req.Header.Add("Content-Type", "application/json")
    req.Header.Add("Authorization", "Bearer YOUR_API_KEY")

    res, err := client.Do(req)
    if err != nil {
        fmt.Println(err)
        return
    }
    defer res.Body.Close()

    body, err := ioutil.ReadAll(res.Body)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(string(body))
}

import Foundation

let url = URL(string: "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("Bearer YOUR_API_KEY", forHTTPHeaderField: "Authorization")

let json: [String: Any] = [
    "country": "Required"]

request.httpBody = try? JSONSerialization.data(withJSONObject: json)

let task = URLSession.shared.dataTask(with: request) { data, _, error in
    if let error = error {
        print(error.localizedDescription)
        return
    }
    if let data = data {
        print(String(decoding: data, as: UTF8.self))
    }
}

task.resume()

import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody

fun main() {
    val client = OkHttpClient()

    val json = """
{
        \"country\": \"Required\"
    }""".trimIndent()

    val mediaType = "application/json".toMediaType()
    val body = json.toRequestBody(mediaType)

    val request = Request.Builder()
        .url("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country")
        .method("POST", body)
        .addHeader("Content-Type", "application/json")
        .addHeader("Authorization", "Bearer YOUR_API_KEY")
        .build()

    client.newCall(request).execute().use { response ->
        println(response.body?.string())
    }
}

import 'dart:convert';
import 'package:http/http.dart' as http;

Future main() async {
  final url = Uri.parse('https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country');

  final body = jsonEncode({
    'country': 'Required'  });

  final response = await http.post(
    url,
    headers: {
      'Content-Type': 'application/json',
      'Authorization': 'Bearer YOUR_API_KEY',
    },
    body: body,
  );

  print(response.body);
}

use reqwest::blocking::Client;
use serde_json::json;
use std::error::Error;

fn main() -> Result<(), Box> {
    let client = Client::new();

    let body = json!({
        "country": "Required"    });

    let response = client
        .request(reqwest::Method::POST, "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8612/obtain+cities+by+country")
        .header("Content-Type", "application/json")
        .header("Authorization", "Bearer YOUR_API_KEY")
        .json(&body)
        .send()?;

    println!("{}", response.text()?);
    Ok(())
}

curl --location --request POST 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population' --header 'Authorization: Bearer YOUR_API_KEY' --header 'Content-Type: application/json' --data-raw '{"city":"Required"}'

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{"city":"Required"}");
Request request = new Request.Builder()
  .url("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population")
  .method("POST", body)
  .addHeader("Content-Type", "application/json")
  .addHeader("Authorization", "Bearer YOUR_API_KEY")
  .build();
Response response = client.newCall(request).execute();

var settings = {
  "url": "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population",
  "method": "POST",
  "timeout": 0,
  "headers": {
    "Content-Type": "application/json",
    "Authorization": "Bearer YOUR_API_KEY"
  },
  "data": JSON.stringify({
    "city":"Required"  })
};

$.ajax(settings).done(function (response) {
  console.log(response);
});

var data = JSON.stringify({
  "city":"Required"});

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function() {
  if(this.readyState === 4) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population");
xhr.setRequestHeader("Content-Type", "application/json");
xhr.setRequestHeader("Authorization", "Bearer YOUR_API_KEY");

xhr.send(data);

var axios = require('axios');
var data = {
  "city":"Required"};

var config = {
  method: 'POST',
  url: 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population',
  headers: { 
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  data : data
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS => '{"city":"Required"}',
  CURLOPT_HTTPHEADER => array(
    'Content-Type: application/json',
    'Authorization: Bearer YOUR_API_KEY'
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

import requests

url = "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population"

payload = {
    "city":"Required"}
headers = {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
}

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

print(response.text)

require 'uri'
require 'net/http'
require 'json'

url = URI("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population")

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

request = Net::HTTP::POST.new(url)
request["Content-Type"] = 'application/json'
request["Authorization"] = 'Bearer YOUR_API_KEY'
request.body = JSON.dump({
  "city" => "Required"})

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

printf '{"city":"Required"}' | \
http --follow --timeout 3600 POST 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population' \
Content-Type:application/json \
Authorization:'Bearer YOUR_API_KEY'

var client = new RestClient("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddHeader("Authorization", "Bearer YOUR_API_KEY");

var body = new {
    city = "Required"
};
request.AddJsonBody(body);

IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

package main

import (
    "fmt"
    "strings"
    "net/http"
    "io/ioutil"
)

func main() {
    url := "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population"
    method := "POST"
    payload := strings.NewReader(`{"city":"Required"}`)

    client := &http.Client {}
    req, err := http.NewRequest(method, url, payload)
    if err != nil {
        fmt.Println(err)
        return
    }

    req.Header.Add("Content-Type", "application/json")
    req.Header.Add("Authorization", "Bearer YOUR_API_KEY")

    res, err := client.Do(req)
    if err != nil {
        fmt.Println(err)
        return
    }
    defer res.Body.Close()

    body, err := ioutil.ReadAll(res.Body)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(string(body))
}

import Foundation

let url = URL(string: "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("Bearer YOUR_API_KEY", forHTTPHeaderField: "Authorization")

let json: [String: Any] = [
    "city": "Required"]

request.httpBody = try? JSONSerialization.data(withJSONObject: json)

let task = URLSession.shared.dataTask(with: request) { data, _, error in
    if let error = error {
        print(error.localizedDescription)
        return
    }
    if let data = data {
        print(String(decoding: data, as: UTF8.self))
    }
}

task.resume()

import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody

fun main() {
    val client = OkHttpClient()

    val json = """
{
        \"city\": \"Required\"
    }""".trimIndent()

    val mediaType = "application/json".toMediaType()
    val body = json.toRequestBody(mediaType)

    val request = Request.Builder()
        .url("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population")
        .method("POST", body)
        .addHeader("Content-Type", "application/json")
        .addHeader("Authorization", "Bearer YOUR_API_KEY")
        .build()

    client.newCall(request).execute().use { response ->
        println(response.body?.string())
    }
}

import 'dart:convert';
import 'package:http/http.dart' as http;

Future main() async {
  final url = Uri.parse('https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population');

  final body = jsonEncode({
    'city': 'Required'  });

  final response = await http.post(
    url,
    headers: {
      'Content-Type': 'application/json',
      'Authorization': 'Bearer YOUR_API_KEY',
    },
    body: body,
  );

  print(response.body);
}

use reqwest::blocking::Client;
use serde_json::json;
use std::error::Error;

fn main() -> Result<(), Box> {
    let client = Client::new();

    let body = json!({
        "city": "Required"    });

    let response = client
        .request(reqwest::Method::POST, "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8613/get+current+city+population")
        .header("Content-Type", "application/json")
        .header("Authorization", "Bearer YOUR_API_KEY")
        .json(&body)
        .send()?;

    println!("{}", response.text()?);
    Ok(())
}

curl --location --request POST 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population' --header 'Authorization: Bearer YOUR_API_KEY' --header 'Content-Type: application/json' --data-raw '{"city":"Required"}'

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{"city":"Required"}");
Request request = new Request.Builder()
  .url("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population")
  .method("POST", body)
  .addHeader("Content-Type", "application/json")
  .addHeader("Authorization", "Bearer YOUR_API_KEY")
  .build();
Response response = client.newCall(request).execute();

var settings = {
  "url": "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population",
  "method": "POST",
  "timeout": 0,
  "headers": {
    "Content-Type": "application/json",
    "Authorization": "Bearer YOUR_API_KEY"
  },
  "data": JSON.stringify({
    "city":"Required"  })
};

$.ajax(settings).done(function (response) {
  console.log(response);
});

var data = JSON.stringify({
  "city":"Required"});

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function() {
  if(this.readyState === 4) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population");
xhr.setRequestHeader("Content-Type", "application/json");
xhr.setRequestHeader("Authorization", "Bearer YOUR_API_KEY");

xhr.send(data);

var axios = require('axios');
var data = {
  "city":"Required"};

var config = {
  method: 'POST',
  url: 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population',
  headers: { 
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  data : data
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS => '{"city":"Required"}',
  CURLOPT_HTTPHEADER => array(
    'Content-Type: application/json',
    'Authorization: Bearer YOUR_API_KEY'
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

import requests

url = "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population"

payload = {
    "city":"Required"}
headers = {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
}

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

print(response.text)

require 'uri'
require 'net/http'
require 'json'

url = URI("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population")

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

request = Net::HTTP::POST.new(url)
request["Content-Type"] = 'application/json'
request["Authorization"] = 'Bearer YOUR_API_KEY'
request.body = JSON.dump({
  "city" => "Required"})

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

printf '{"city":"Required"}' | \
http --follow --timeout 3600 POST 'https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population' \
Content-Type:application/json \
Authorization:'Bearer YOUR_API_KEY'

var client = new RestClient("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddHeader("Authorization", "Bearer YOUR_API_KEY");

var body = new {
    city = "Required"
};
request.AddJsonBody(body);

IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

package main

import (
    "fmt"
    "strings"
    "net/http"
    "io/ioutil"
)

func main() {
    url := "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population"
    method := "POST"
    payload := strings.NewReader(`{"city":"Required"}`)

    client := &http.Client {}
    req, err := http.NewRequest(method, url, payload)
    if err != nil {
        fmt.Println(err)
        return
    }

    req.Header.Add("Content-Type", "application/json")
    req.Header.Add("Authorization", "Bearer YOUR_API_KEY")

    res, err := client.Do(req)
    if err != nil {
        fmt.Println(err)
        return
    }
    defer res.Body.Close()

    body, err := ioutil.ReadAll(res.Body)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(string(body))
}

import Foundation

let url = URL(string: "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("Bearer YOUR_API_KEY", forHTTPHeaderField: "Authorization")

let json: [String: Any] = [
    "city": "Required"]

request.httpBody = try? JSONSerialization.data(withJSONObject: json)

let task = URLSession.shared.dataTask(with: request) { data, _, error in
    if let error = error {
        print(error.localizedDescription)
        return
    }
    if let data = data {
        print(String(decoding: data, as: UTF8.self))
    }
}

task.resume()

import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody

fun main() {
    val client = OkHttpClient()

    val json = """
{
        \"city\": \"Required\"
    }""".trimIndent()

    val mediaType = "application/json".toMediaType()
    val body = json.toRequestBody(mediaType)

    val request = Request.Builder()
        .url("https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population")
        .method("POST", body)
        .addHeader("Content-Type", "application/json")
        .addHeader("Authorization", "Bearer YOUR_API_KEY")
        .build()

    client.newCall(request).execute().use { response ->
        println(response.body?.string())
    }
}

import 'dart:convert';
import 'package:http/http.dart' as http;

Future main() async {
  final url = Uri.parse('https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population');

  final body = jsonEncode({
    'city': 'Required'  });

  final response = await http.post(
    url,
    headers: {
      'Content-Type': 'application/json',
      'Authorization': 'Bearer YOUR_API_KEY',
    },
    body: body,
  );

  print(response.body);
}

use reqwest::blocking::Client;
use serde_json::json;
use std::error::Error;

fn main() -> Result<(), Box> {
    let client = Client::new();

    let body = json!({
        "city": "Required"    });

    let response = client
        .request(reqwest::Method::POST, "https://pr231-testing.zylalabs.com/api/6185/global+cities+population+api/8614/get+city+previous+population")
        .header("Content-Type", "application/json")
        .header("Authorization", "Bearer YOUR_API_KEY")
        .json(&body)
        .send()?;

    println!("{}", response.text()?);
    Ok(())
}