AsyncAndAwait.js

console.log("Before");

 async function displayCommit(){
     try{
        const user = await getUser(1);
     const repo = await getRepositories(user.gitHubUserName);
     const commit = await getCommits(repo[0]);
     console.log(commit);
     }
     catch(err){
         console.log("Error ",err.message);
     }
   
 }

    displayCommit();

console.log('After');

function getUser(id){

    return new Promise ((resolve, reject) =>{
        setTimeout(() => {
            console.log('Reading a user from database....');
            resolve({ id: id, gitHubUserName: 'Swap76'});
        }, 2000);
    });
}

function getRepositories(username){

    return new Promise ((resolve, reject) =>{
        setTimeout(()=> {
            console.log('Getting Repostories...')
            resolve({username: username,repository: ['repo1','repo2','repo3']});
        },2000);
    })
}

function getCommits(repo){

    return new Promise ((resolve,reject) =>{
        setTimeout(() => {
            console.log('Calling GitHub API....');
            resolve(['commit']);
        },2000);
    });
}