Differences between contracts and facades laravel

Question

I have been doing laravel since 4 months. I don't find a clear difference between facades and contracts as they both are set of interfaces. Why would i use facades instead of contracts or contracts instead of facades?

Answer 1

The question whether to use Facade or Contract boils down how you want to resolve your classes and if you want to use interfaces.

Facade

• A facade is a class and not an interface (here is an example facade).

• A facade is only used to load a class from service container more convenient

• The class that is going to be loaded is determent in the getFacadeAccessor() method of the facade class.

Example:

// Without facade - resolving from service container
app('some_service')->methodName();

// Do the same through facade:
someService::methodName();

Contract

• A contract is an interface (here is an example)
• A contract is used to load a class from service container more convenient AND as an interface
• The class that is going to be loaded is determined in the service container, see Binding Interfaces To Implementations

Example: Assuming that class some_service implements interface Illuminate\Contracts\Config\Repository:

// resolving class directly from service container
app('some_service')->methodName();

// resolve through binding from contract
app('Illuminate\Contracts\Config\Repository')->methodName();