GitHub Contributions from Codewars

A repository for reflecting Codewars activities in the github contributions count.

🔨 Usage

Step1 Use as a repository template

To start, just click the Use this template link. Create a new repository

Step2 Create a personal access token

Creates the tokens needed when performing an action. Make sure to grant permissions only to repositories you create 🔐

Github > Settings > Developer settings > Fine-grained personal access tokens

Note

• Tokens must be handled with security in mind
• Shorter duration is safer, but periodic maintenance is required

Step3 Create AWS Lambda function

Unfortunately, the webhook function provided in Codewars is not enough to execute github actions. We need to prepare a function to receive webhooks and execute github actions in AWS Lambda.

1. Create Lambda function

Log in to AWS and go to lambda > Functions > Create Function. Create a function with the following settings.

2. Deploy function

Paste the following code into index.js and deploy.

※Rewrite the variables in line 4-6 to match your environment.

const https = require('https');

// TODO: Change it to match your env
const token = '___yourToken___';
const githubId = '___yourGithubId___';
const repoName = '___yourRepositoryName___';

const request = () => {
  const url = `https://api.github.com/repos/${githubId}/${repoName}/dispatches`;
  const options = {
    method: 'POST',
    headers: {
      'Accept': 'application/vnd.github.v3+json',
      'Authorization': `token ${token}`,
      'Content-Type': 'application/x-www-form-urlencoded',
      'User-Agent': 'Lambda script'
    }
  };
  const body = JSON.stringify({
    'event_type': 'codewars_update'
  });

  return new Promise((resolve, reject) => {
    const req = https.request(url, options, (res) => {
      res.setEncoding('utf8');
      let data = '';
      res.on('data', (chunk) => {
        data += chunk;
      })
        .on('end', () => {
          resolve(data);
        });
    }).on('error', (error) => {
      reject(error);
    });

    req.setTimeout(60);
    req.write(body);
    req.end();
  });
}

exports.handler = async (event) => {
  await request();
  const response = {
    statusCode: 200,
    body: JSON.stringify('OK'),
  };
  return response;
};

3. Copy function URL

The URL to execute the Lambda function will be displayed. Copy this URL.

Note

It is also possible to use cron to perform periodic execution without using a Lambda function or any other function. In this case, multiple changes that > occur within the interval of the periodic execution will be reflected at once.

Step4 Set Webhook URL in Codewars

Specifies the URL of the Lambda function

Codewars > Account Setting

🎉 Complete

When the activity is recorded in Codewars, a webhook is fired and the github action is executed.