06 Rest & Test

• Learning objectives

• Reviewing portfolio projects. Today we would like to see your documentation of your API endpoints and far you have come with your implementation.

• Rest-assured.io (5 min)
• Short Rest Assured Tutorial, read 1-7 (5 min)
• Hamcrest guide (skim and use for reference 10 min)

• Rest-assured overview
• The Gherkin Syntax
• General Theory about testing

• Gherkin Syntax
• Hamcrest Matchers
• Testing Dog API

• Codelab

Watch these videos to get an introduction to Websockets and Webhooks:

• Websockets explained (7:14)
• Webhooks for beginners (7:32)
• Top 3 things you should know about Webhooks (3:54)

Skim through the following documentation to get an overview of how to implement Websockets in Javalin:

• Websockets in Javalin

• Have a look at these wonderful protocols
• Dice Websocket demo
  • Clone the repo and run the Websocket server in IntelliJ.
  • Connect two browser windows to http://localhost:7070 and test the dice game by clicking the “Roll Dice” button. You should see the dice rolls in both windows.
  • Choose one server machine in the class rooom and let the rest of the class connect to that machine’s IP address and port.
  • Figure out why it works ;-)
  • Refactor the code to have a better separation of concerns. For example, you could create a separate class for handling the game logic and another class for handling the Websocket communication etc, separate the css to a separate file etc.
  • Begin adding functionality. Like who rolled the dice. Saving the game history to a database, adding a chat functionality etc.

• This one is for you to work on your portfolio project. Begin by writing tests for your API endpoints and then implement the endpoints if you haven’t already.