clever.js

const req = require('request-promise');
const async = require('async');

CLIENT_ID = process.env.CLEVER_CLIENT_ID;
CLIENT_SECRET = process.env.CLEVER_CLIENT_SECRET;
REDIRECT_URL = process.env.REDIRECT_URL;

async function runOAuthFlow(code) {
  console.log("getting token");
  const token = await getToken(code);

  console.log("getting me");
  const response = await request('/me', token);

  const data = response["data"];
  console.log("me data", data);

  console.log("user data", data);
  return {
      id: data.id,
      type: data.type,
      token: token
  };
}

async function getToken(code) {
  var auth = new Buffer(`${CLIENT_ID}:${CLIENT_SECRET}`).toString('base64');
  var token_options = {
      url: 'https://clever.com/oauth/tokens',
      headers: { 'Authorization': 'Basic ' + auth },
      form: {
          'code': code,
          'grant_type': 'authorization_code',
          'redirect_uri': REDIRECT_URL
      },
      method: 'POST',
      json: true,
  };

  data = await req(token_options);
  return data["access_token"];
}

async function request(route, token) {
  var url = `https://api.clever.com/v2.0${route}`;

  const data = req({
    url: url,
    headers: { 'Authorization': `Bearer ${token}` },
    json: true,
  });

  return data;
}

async function getMyInfo(user_id, user_type, token) {
  var route = `/${user_type}s/${user_id}`;
  const response = await request(route, token);

  return response["data"];
}

async function getMySections(user_id, user_type, token) {
  var route = `/${user_type}s/${user_id}/sections`;
  const response = await request(route, token);

  return response["data"];
}

async function getMySectionsWithStudents(user_id, user_type, token) {
  var route = `/${user_type}s/${user_id}/sections`;
  const response = await request(route, token);

  const sections = response["data"];

  // for every section, go fetch the data for each of its students
  await Promise.all(sections.map(async (section) => {
    section.data.students = await getStudentsForSection(section.data.id, token);
  }));

  return sections;
}

async function getStudentsForSection(section_id, token) {
  var route = `/sections/${section_id}/students`;
  const response = await request(route, token);

  return response["data"];
}

module.exports = {
  request: request,
  runOAuthFlow: runOAuthFlow,
  getMyInfo: getMyInfo,
  getMySections: getMySections,
  getMySectionsWithStudents: getMySectionsWithStudents,
  getStudentsForSection: getStudentsForSection,
};