What steps can be taken to restrict access to my public REST API so only my single-page application (

My website, housed at my-example-domain.com, utilizes an Angular-based SPA along with a Laravel 5.3 REST API located at my-example-domain.com/api. All of the APIs are accessible to the public, allowing unauthenticated users to interact with my Angular SPA and access the backend data.

However, I want to restrict access to my backend REST API exclusively to my SPA. This means preventing unauthorized calls from external sources such as REST clients or cURL requests.

How can I achieve this level of security? What type of authentication measures should be implemented in my Laravel application? Would using Passport be the most effective solution?

Answer №1

There is no way to prevent it.

The client is open to the general public.

Since it operates in a browser, all HTTP requests made by it can be viewed by its users (i.e. everyone).

Any attempts to trace the request back to your client can be observed and duplicated by anyone.

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