Chaining Promises

promise-chain.js

server.getUsername()
.then(function(result) {
    return server.getProfile(result);
}).then(function(result) {
    displayProfile(result);
    return server.getProfilePicture(result.imageUrl);
}).then(function(result) {
    udpateProfilePicture(result);
    console.log('Data loaded');
}).catch(function(error) {
    // this catch block will run if anything
    // breaks in the entire promise chain or
    // if one of them is rejected. 
    
    console.log(error);
});