Laravel: How to secure APIs for iOS and Android apps

Asked by: Rachit

I am making a backend CMS for my android and iOS app and have implemented the APIs. But I am struggling with securing them. I have tried using Laravel Passport but I failed to use it. I want to ask if my apporach to secure them is right? Should I use passport or is there some other way to secure my apis? And how do I do it? Any help will be appreciated.

I am using laravel 5.4.

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