curl --request GET \
  --url https://api.circle.com/v1/w3s/user/challenges \
  --header 'Authorization: Bearer <token>' \
  --header 'X-User-Token: <x-user-token>'

import requests

url = "https://api.circle.com/v1/w3s/user/challenges"

headers = {
    "X-User-Token": "<x-user-token>",
    "Authorization": "Bearer <token>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {
  method: 'GET',
  headers: {'X-User-Token': '<x-user-token>', Authorization: 'Bearer <token>'}
};

fetch('https://api.circle.com/v1/w3s/user/challenges', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.circle.com/v1/w3s/user/challenges",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "X-User-Token: <x-user-token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.circle.com/v1/w3s/user/challenges"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-User-Token", "<x-user-token>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.circle.com/v1/w3s/user/challenges")
  .header("X-User-Token", "<x-user-token>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.circle.com/v1/w3s/user/challenges")

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

request = Net::HTTP::Get.new(url)
request["X-User-Token"] = '<x-user-token>'
request["Authorization"] = 'Bearer <token>'

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

{
  "data": {
    "challenges": [
      {
        "id": "c4d1da72-111e-4d52-bdbf-2e74a2d803d5",
        "status": "PENDING",
        "type": "SET_PIN",
        "correlationIds": [
          "54399e5a-1bf6-4921-9559-10c1115678cd"
        ],
        "errorCode": 155121,
        "errorMessage": "challenge expired"
      }
    ]
  }
}

{
  "code": 400,
  "message": "Bad request."
}

{
  "code": 401,
  "message": "Malformed authorization."
}

{
  "code": 404,
  "message": "Not found."
}