AWS Lambda Script for CircleCI nightly build

nightly-build.js

var projects = [
  ['githubuser/repo1', 'circleci_api_token_for_repo1'],
  ['githubuser/repo2', 'circleci_api_token_for_repo2'],
];

var https = require('https')

var callApi = function(method, path, body, callback) {
  var options = {
    hostname: 'circleci.com',
    method: method,
    path: path,
    headers: {
      'Content-Type': 'application/json',
      'Accept': 'application/json'
    }
  };

  console.log(method + ': ' + path);
  var req = https.request(options, function(res) {
    console.log('STATUS: %d', res.statusCode);
    console.log('HEADERS: %s', JSON.stringify(res.headers));
    res.setEncoding('utf8');
    res.on('data', function(chunk) {
      console.log('BODY: %s', chunk);
    });
    res.on('end', function() {
      console.log('No more data in response.');
      if (callback != null) {
        callback();
      }
    });
  });

  req.on('error', function(e) {
    console.log('problem with request: %s', e.message);
  });

  if (body != null) {
    req.write(body);
  }
  req.end();
};

var triggerBuild = function(project, token) {
  var path = '/api/v1.1/project/github/' + project + '/tree/master?circle-token=' + token;
  var body = JSON.stringify({
    build_parameters: {
      NIGHTLY_BUILD: true
    }
  });

  callApi('POST', path, body);
};

var clearCache = function(project, token, callback) {
  var path = '/api/v1.1/project/github/' + project + '/build-cache?circle-token=' + token;
  callApi('DELETE', path, null, callback);
};

var triggerNightlyBuild = function(project, token) {
  clearCache(project, token, function() {
    triggerBuild(project, token);
  });
};

exports.handler = function(event, context) {
  projects.forEach(function(project) {
    triggerNightlyBuild(project[0], project[1]);
  });
};