How to Pass a JSON Array in an HTTP DELETE Request with Angular

Описание: Learn how to effectively send a JSON body in an HTTP DELETE request using Angular. This guide breaks down the steps clearly and provides code snippets to help you implement it.
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This video is based on the question https://stackoverflow.com/q/65950492/ asked by the user 'learnerNT' ( https://stackoverflow.com/u/9419597/ ) and on the answer https://stackoverflow.com/a/65950758/ provided by the user 'Syed Mohammad Fahim Abrar' ( https://stackoverflow.com/u/7584160/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Pass a JSON Array in an HTTP DELETE Request with Angular

When working with REST APIs in Angular, you may encounter a situation where you need to send a DELETE request with a complex body, such as a JSON array. While DELETE requests typically do not include a body according to the HTTP/1.1 specification, many APIs still allow you to do so for specific use cases. This article will guide you through how to accomplish this in Angular.

The Problem

Let's say you have a REST API designed to delete specific items based on information provided in a JSON body. Your API accepts a JSON object structured like this:

[[See Video to Reveal this Text or Code Snippet]]

You need to send this JSON data in a DELETE request from your Angular application. But the challenge lies in correctly structuring the HTTP request, especially if you cannot change the body structure of the API.

The Solution

To send a body with an HTTP DELETE request in Angular, you will need to use the HttpClient service along with some specific options. Below, you'll find a breakdown of how to do this effectively.

Step 1: Set Up Your API URL

First, define the URL of the API endpoint you want to hit. This is the location where your DELETE request will be sent.

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Prepare the Transactions Object

Next, create the transactions object that mirrors the structure expected by your API. In this case, it would look like this:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Create Options for the HTTP Delete Request

With the transactions defined, you need to set up the options for your DELETE request. This includes specifying the headers and the body.

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Make the DELETE Request

Now, you can use the HttpClient to send the DELETE request with the options you've defined. Here’s how you can do this:

[[See Video to Reveal this Text or Code Snippet]]

Complete Example

Here’s the complete code snippet for reference:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Sending a JSON body in an HTTP DELETE request with Angular requires careful structuring of your request with the correct options. By following the steps outlined above, you can seamlessly pass a JSON array of items to be deleted while adhering to the expected format of your REST API.

If you have any questions, feel free to drop them in the comments below! Happy coding!