Скачать или смотреть How to Fix the Unnecessarily quoted property 'Authorization' Error in Angular 9 POST Requests

Learn how to solve the `Unnecessarily quoted property 'Authorization'` error in Angular 9 when making POST requests with TypeScript. This guide provides a clear and detailed solution for handling headers correctly.
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Resolving the Unnecessarily Quoted Property 'Authorization' Error in Angular 9 POST Requests

If you're new to Angular and are diving into making POST requests with TypeScript, you might be stumbling upon some common errors. One of these errors is the message that says "Unnecessarily quoted property 'Authorization' found". This issue can be quite confusing for beginners, especially when just starting with Angular 9. In this guide, we'll explore what this error means and how you can fix it effectively.

Understanding the Problem

When you make a POST request in Angular, you often need to send headers along with your request. The error you're encountering indicates that the way you're formatting the headers in your Angular application is not correct. Specifically, the quotes around the 'Authorization' key are unnecessary and are causing TypeScript to throw an error.

What Does the Error Mean?

The error message "Unnecessarily quoted property 'Authorization' found" signifies that the property name, ‘Authorization’, in your headers object has been unnecessarily quoted. In JavaScript and TypeScript, you typically shouldn't quote property names unless they contain spaces or special characters.

The Solution: Correcting Your POST Request

To resolve this error, you'll want to refactor your service method that sends the POST request. Instead of having an options object with the method and headers all together, you should separate out the header definition and ensure the body of your request is formatted properly.

Refactoring Steps

Here’s a clear step-by-step guide on how to fix the issue:

Define Headers Properly: Instead of including headers within the options directly, create an instance of HttpHeaders.

Prepare the Body: Use JSON.stringify() to format your body data correctly.

Call the POST Method: Pass the URL, body, and options to the post method directly.

Here’s how your updated service method should look:

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

Key Changes!

Removed method from options: You don’t need to specify the method since you're already using this.http.post().

Correctly formatted headers: The property names are now defined without unnecessary quotes, preventing TypeScript from throwing errors.

Body Preparation: Ensure you're referencing this.query properly.

Conclusion

If you're facing the "Unnecessarily quoted property 'Authorization' found" error in your Angular application, remember to review how you're defining headers in your POST requests. By ensuring that your property names are not unnecessarily quoted and restructuring your method as shown, you’ll be on your way to successfully making POST requests without any hiccups.

Happy coding with Angular 9! If you found this post helpful, feel free to share your thoughts or any similar experiences in the comments below!