如何在Laravel 5.2中使用自定义服务提供程序

Question

I am creating a Laravel app that needs to communicate with a remote (in-house) service via API.

This API needs to be authenticated at least once per session, and after that other calls can work fine.

I think the best way is to use Laravel's service providers to do this, but I'm open to other solutions.

What I would like:

What I would like is a way to have this Service available for use whenever. I don't want to have to put the service in the parameters of a controller's method if I can avoid it. Something like this:

use MyServiceProvider;

class SomeController extends Controller 
{
    public function someMethod ()
    {
        MyServiceProvider::method();
    }
}

I can post what I've started doing thus far, if needed - but I'd rather focus on doing what I want rather than fixing what I did wrong.

inb4: I did read the docs.

Answer 1

What you're trying to do is create a Facade. Facades are very similar to using dependency injection, except that they can be used globally without specific injection. Docs: https://laravel.com/docs/5.0/facades#creating-facades

In your service provider:

App::bind('foo', function()
{
    return new \MyServices\Foo; //returns a concrete class
});

Foo.php

use Illuminate\Support\Facades\Facade;

class Foo extends Facade {

    protected static function getFacadeAccessor() { return 'foo'; } //matches binding in SP

}

Now your service provider is available as Foo anywhere, even without explicitly injecting it:

use Foo;

class SomeController extends Controller 
{
    public function someMethod ()
    {
        Foo::method(); //creates a Foo object according to App::bind, then calls method();
    }
}