Implement likes

@RobinHD wrote:

Hey guys,

I’m stuck for 3 days now on how to implement a like system in my application ?
Here is a exemple of my mind : When you click on the heart (represent the like), the heart become red. And if you click again, the heart return black. And if you close the app and come back on it, your change is saved.

I was wondering how does it works? Do I need to save user data ?

Sorry for my bad english, this is not my main language.

Thanks

edit: I use Ionic 3

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