Percy Bitbucket AWS Lambda

lambda.js

const https = require('https');

const AUTHORIZATION = ''; // base 64 of user:password
const BITBUCKET_USER = ''; // either the user or the org that owns the repo
const PERCY_USER = ''; // the name of your percy user or org

exports.handler = (event, context, callback) => {
  /**
    We need to post to a URL like this:
    https://api.bitbucket.org/2.0/repositories/<user>/<repo>/commit/<hash>/statuses/build

    A payload that looks like this:
    {
      "state": "<INPROGRESS|SUCCESSFUL|FAILED>",
      "key": "<build-key>",
      "name": "<build-name>",
      "url": "<build-url>",
      "description": "<build-description>"
    }
  */
  const {
    data,
    included,
  } = event;
  const eventName = data.attributes.event;
  let state;
  let description;

  switch (eventName) {
    case 'build_created':
      state = 'INPROGRESS';
      description = 'Processing visual diff.';
      break;
    case 'build_approved':
      state = 'SUCCESSFUL';
      description = 'Success!';
      break;
    case 'build_finished':
      if(included[0].attributes['review-state'] === 'approved'){
        state = 'SUCCESSFUL';
        description = 'No diffs detected.';
      } else {
        state = 'STOPPED';
        description = 'Build needs manual review.'; 
      }
      break;
  }

  const commitHash = included[1].attributes.sha;
  const url = included[0].attributes['web-url'];
  const repo = url.replace(`https://percy.io/${PERCY_USER}/`, '').split('/')[0];
  const key = included[0].id;
  const name = 'Percy!';

  const postBody = {
    state,
    key,
    name,
    url,
    description,
  };

  const postRequest = https.request({
    host: 'api.bitbucket.org',
    path: `/2.0/repositories/${BITBUCKET_USER}/${repo}/commit/${commitHash}/statuses/build`,
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      Authorization: `Basic ${AUTHORIZATION}`,
    },
  }, (res) => {
    console.log('statusCode:', res.statusCode);
    console.log('headers:', res.headers);

    res.on('data', (d) => {
      process.stdout.write(d);
    });

    const response = {
      statusCode: 200,
      body: JSON.stringify({
        state,
        key,
        name,
        url,
        description,
      }),

    };

    callback(null, response);

    return response;
  });

  postRequest.write(JSON.stringify(postBody));
  postRequest.end();
};