Challenger Code

Challenge yourself with coding exercises. Official website: challengerco.de.

Installation

If you want to install locally:

$ npm i challenger-code

Start with

$ npm start

You will need a running instance of MongoDB listening to 127.0.0.1, no security. It will use database cc.

Configuration

You will need to have a file in the root directory called .challenger-code.json, containing:

{
	"jwtSecret": "...",
    "githubId": "...",
    "githubSecret": "..."
}

The first value jwtSecret is used to encrypt JWT tokens, so make sure that it is kept secret. The next values githubId and githubSecret are used to authenticate using GitHub. Please refer to GitHub: Authorizing OAuth Apps for details.

API

The following API calls are published.

GET /api/challenge/:owner/list

Returns a list of challenges with id and name from owner.

GET /api/challenge/:owner/:id

Returns the challenge with the given owner and id.

POST /api/challenge/:owner/:id/run

Runs the given challenge id from owner with some code. Body parameters:

• code: the code to run.

Pending Stuff

This is a list of things I'm working on. Please let me know if you want to tackle any so we don't duplicate efforts. Thanks!

• Challenge editor: accepts submissions from anyone, saved as challengeco.de/owner/challenges.
• Admin role: select challenges for the main collection.
• Challenger list: select by category, difficulty.
• User page: show challenges run and achievements by any player.
• ✅View challenge stats: show min and average for: nodes, execution time, memory?
• Check max memory used by a challenge run.
• Browser runner: run challenges directly in the browser.
• ✅Redirect http site to https.

Architecture

The project uses fastify. It loosely follows the structure of fastify-example-twitter.

Compatibility

Version 0.2.0 to 0.3.0

Challenge runs now have id, not challengeId. If you want to preserve your existing challenge runs, use this script on the mongo console:

> db.runs.find().snapshot().forEach(e => db.runs.update({_id: e._id}, {$set: {id: e.challengeId}})

Acknowledgements

The code and challenges are open for participation. Pull requests are very welcome!

(C) 2020 Alex Fernández. Licensed under the GPL v3. See LICENSE file for details.