Fetching github users, orgs, and repos and print it.

asyncAwait.js

// @flow

// import fetch from 'node-fetch';

async function fetchUsers(userNames: Array<string>): Promise<*> {
  console.log('Start fetching');
  console.log('--------------');
  for (let userName of userNames) {
    let orgs: Array<Object> = await fetch(`https://api.github.com/users/${userName}/orgs`).then((res: Response) => res.json()); // eslint-disable-line
    console.log('Fetching user..');
    let orgsList = new Set();
    for (let org of orgs) {
      orgsList.add(org.login);
      usersOrgs.set(userName, orgsList);
      if (!orgsRepos.has(org.login)) {
        let repos: Array<Object> = await fetch(`https://api.github.com/orgs/${org.login}/repos`).then((res: Response) => res.json()); // eslint-disable-line
        console.log('Fetching orgs..');
        orgsRepos.set(org.login, repos.length);
      }
    }
  }
  console.log('Fetching done');
  console.log('--------------');
  return 1;
}

async function showUsers(userNames: Array<string>) {
  let result = await fetchUsers(userNames); // eslint-disable-line
  console.log('Start writing');
  console.log('--------------');
  usersOrgs.forEach((orgs: Set<string>, userName: string) => {
    console.log(`${userName} member of ${orgs.size} orgs:`);
    orgs.forEach((orgName: string) => {
      console.log(`>> ${orgName} has ${orgsRepos.get(orgName)}`);
    });
  });
  console.log('--------------');
  console.log('Writing done.');
}

let userNames = ['mjackson', 'vjeux', 'jordwalke'];
// let userNames = ['mjackson'];
let usersOrgs: Map<string, Set<string>> = new Map();
let orgsRepos: Map<string, number> = new Map();

showUsers(userNames);