Learning Objectives At the end of this project, you are expected to be able to explain to anyone, without the help of Google:

Promises (how, why, and what) How to use the then, resolve, catch methods How to use every method of the Promise object Throw / Try The await operator How to use an async function Requirements All your files will be executed on Ubuntu 18.04 LTS using NodeJS 12.11.x Allowed editors: vi, vim, emacs, Visual Studio Code All your files should end with a new line A README.md file, at the root of the folder of the project, is mandatory Your code should use the js extension Your code will be tested using Jest and the command npm run test Your code will be verified against lint using ESLint All of your functions must be exported Setup Install NodeJS 12.11.x (in your home directory):

curl -sL https://deb.nodesource.com/setup_12.x -o nodesource_setup.sh sudo bash nodesource_setup.sh sudo apt install nodejs -y $ nodejs -v v12.11.1 $ npm -v 6.11.3 Install Jest, Babel, and ESLint in your project directory:

Install Jest using: npm install --save-dev jest Install Babel using: npm install --save-dev babel-jest @babel/core @babel/preset-env @babel/cli Install ESLint using: npm install --save-dev eslint Files package.json Click to show/hide file contents

{ "scripts": { "lint": "./node_modules/.bin/eslint", "check-lint": "lint [0-9].js", "dev": "npx babel-node", "test": "jest", "full-test": "./node_modules/.bin/eslint [0-9].js && jest" }, "devDependencies": { "@babel/core": "^7.6.0", "@babel/node": "^7.8.0", "@babel/preset-env": "^7.6.0", "eslint": "^6.4.0", "eslint-config-airbnb-base": "^14.0.0", "eslint-plugin-import": "^2.18.2", "eslint-plugin-jest": "^22.17.0", "jest": "^24.9.0" } }

babel.config.js Click to show/hide file contents utils.js Use when you get to tasks requiring uploadPhoto and createUser.

Click to show/hide file contents .eslintrc.js Click to show/hide file contents and… Don’t forget to run $ npm install when you have the package.json

Response Data Format uploadPhoto returns a response with the format

{ status: 200, body: 'photo-profile-1', } createUser returns a response with the format

{ firstName: 'Guillaume', lastName: 'Salva', }