Compiled Learning Objectives

At the end of the sprint, you should be able to do the following things. Make sure to check you can do them all, and if not, go back and keep practicing until you can.

Adding quotes

• POST data from a frontend to a backend in JSON format.

Data validation

• Explain the trade-offs of doing validation on the frontend or backend.

Chat application requirements

• Explain the requirements of our chat application.
• Explain what requirements are out of scope for our chat application.

Making a non-live chat application

• Write and run a frontend and backend
• Store data passed from a user into a backend
• Display data from a backend to a user

Deploying the chat application

• Deploy a frontend and backend so it can be used on the internet.

Limitations of a single request/response

• Identify the limitations of loading a website via a single request and response.
• Give examples of functionality that relies on subsequent data transfer from the server to the client.
• Identify and explain why clients typically initiate requests.

Designing a streaming API

• Describe the trade-offs of different streaming APIs.

Repeated client requests for updates

• Stream live updates from a server by using repeated HTTP polling.

Long-polling

• Stream live updates from a server by using long-polling.
• Compare the trade-offs involved with frequent small requests vs long-polling.