services-app is a simple stateless microservice app in Nodejs, with three major functionalities -

• Authentication
• JSON patching
• Image Thumbnail Generation

To know more, check out docs and Code Coverage report

Clone the repository, install npm dependencies, build and run

$ git clone https://github.com/shikhardhing/services-app
$ npm install
$ npm run build
$ npm start

Clone the repository, build docker image and run

$ git clone https://github.com/shikhardhing/services-app
$ cd services-app
$ docker build -t <username>/services-app
$ docker run -p 3000:3000 -d <username>/services-app

• POST /login:

  Provide an arbitrary username/password pair to obtain a JWT token

  $ curl -XPOST -H "Content-Type: application/json" localhost:3000/login -d '{"username": "user", "password": "password"}'

• POST /api/thumbnail:

  Provide a public image URL in query, with a valid JWT token obtained from /login to get 50*50 pixel thumbnail as response

  curl -XPOST -H "Authorization: JWT <token>" http://localhost:3000/api/thumbnail\?url\=https://cdn.pixabay.com/photo/2017/09/03/17/26/woman-2711279_960_720.jpg

• POST /api/patch:

  Provide a JSON document and patch object, with a valid JWT token obtained from /login to get a patched json object

  curl -XPOST -H "Authorization: JWT <token>" -H "Content-Type: application/json" http://localhost:3000/api/patch -d '{"document": { "firstName": "Albert", "contactDetails": { "phoneNumbers": [] } },"operation": [{ "op": "replace", "path": "/firstName", "value": "Joachim" },{ "op": "add", "path": "/lastName", "value": "Wester" },{ "op": "add", "path": "/contactDetails/phoneNumbers/0", "value": { "number": "555-123" } }]}'

• Run the tests using npm:

$ npm run test

• For linting (using standard-js)

$ npm run lint

• Get code coverage

$ cd dist
$ istanbul cover ./node_modules/.bin/_mocha