Why PUT and DELETE requests in Angular? - Purpose & Use Cases

The Big Idea

Discover how simple commands can save you hours of frustrating manual updates!

The Scenario

Imagine you have a list of items on a webpage, and you want to update one item or remove another by manually changing the HTML and sending data to the server yourself.

You would have to write lots of code to track which item changed, create the right data format, and handle the server response manually.

The Problem

Manually handling updates and deletions is slow and error-prone because you must carefully manage the data sent to the server and update the UI yourself.

It's easy to forget to send the right data or to update the page incorrectly, causing bugs and a bad user experience.

The Solution

Using Angular's PUT and DELETE requests lets you send precise instructions to the server to update or remove data easily.

Angular's HttpClient handles the communication, so you focus on what to update or delete, not how to send it.

Before vs After

✗ Before

fetch('/items/1', { method: 'PUT', body: JSON.stringify(data) }) // manually crafting request

✓ After

http.put('/items/1', data) // Angular HttpClient handles it cleanly

What It Enables

It enables smooth, reliable updates and deletions of data on the server with minimal code and fewer mistakes.

Real Life Example

Think of an online shopping cart where you can change the quantity of an item (PUT) or remove it completely (DELETE) with instant updates.

Key Takeaways

Manual updates and deletes are complex and error-prone.

Angular's PUT and DELETE requests simplify server communication.

This leads to cleaner code and better user experiences.