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explicit route model binding in laravel

// In RouteServiceProvider
 public function boot()
    {
   		//don't forget import model at the top
        Route::model('unique_key', Blog::class);
        Route::bind('unique_key', function ($value) {
            return Blog::findOrFail($value);
           //return Blog::where('something', $value)->firstOrFail();
        });
   
   //default laravel codes
 }

laravel route implicit binding

Route::get('api/users/{user}', function (AppUser $user) {
    return $user->email;
});

laravel route explicit binding

public function boot()
{
    parent::boot();

    Route::model('user', AppUser::class);
}