Mobile App talking to API - authentication question

HI,

I am building a mobile app (using phonegap) which speaks to an API.

In this app, users need to register and log in in order to use the app. For this I have built an API ( served only over https ). I am just wondering what the best way is to sort the authentication.

At the moment when you log in, it checks email address and password. If the combination is found in the database, I am returning a randomly generated key with 50 characters ( uppercase, lowercase, numbers and a few special...

Mobile App talking to API - authentication question

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