How to complete the challenge `GET /api/challenges (200)`.

By Alan RichardsonUpdated 2026-08-06

How to use a GET request with an x-challenger header to get the progress status of all the API Challenges.

GET /api/challenges (200)

Issue a GET request on the /api/challenges end point

This will show you the status of all the challenges in your REST Client, if you include an X-CHALLENGER guid header in your request.

Basic Instructions

Issue a GET request to end point "/api/challenges"
- https://apichallenges.com/api/challenges
The request should have an X-CHALLENGER header
The response body shows the status of all the challenges.

Try it now

GET /api/challenges to list the available challenges

Example Request

> GET /api/challenges HTTP/1.1
> Host: apichallenges.com
> User-Agent: rest-client
> X-CHALLENGER: x-challenger-guid
> Accept: */*

Example Response

< HTTP/1.1 200 OK
< Connection: close
< Date: Thu, 27 Aug 2020 13:38:45 GMT
< Content-Type: application/json
< Location: /api/challenger/x-challenger-guid
< X-Challenger: x-challenger-guid
< Server: Jetty(9.4.z-SNAPSHOT)
< Via: 1.1 vegur

Example Response Payload

{
  "challenges": [
    {
      "name": "POST /api/challenger (201)",
      "description": "Issue a POST request on the `/api/challenger` end point, 
            with no body, to create a new challenger session. 
            Use the generated X-CHALLENGER header in 
            future requests to track challenge completion.",
      "status": true
    },
    {
      "name": "GET /api/challenges (200)",
      "description": "Issue a GET request on the `/api/challenges` end point",
      "status": true
    }
  ]
}

Overview Video

Watch on YouTube: "Solution to Get Challenges progress"

Patreon ad free version

Lessons Learned

GET /api/challenges exposes progress state rather than todo application data.
This endpoint is a dashboard API: the response tells you what the server thinks you have completed.
Including X-CHALLENGER changes the result from generic challenge info to your tracked session.

Suggested Experiments

Call GET /api/challenges, complete one challenge, then call it again and compare the completion flags.
Request /api/challenges with and without X-CHALLENGER to see how session tracking changes the response.

Experiment with this endpoint

How to complete the challenge GET /api/challenges (200).