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Response

Headers, HTTP Codes and Cookies​

  • We can return with response code, header information and cookies
Route::get('posts',function() use($posts){
	return response($posts, 201)				//HTTPCode
	->header('Content-Type','Application/json')	//header
	->cookie('MY_COOKIE', 'Weili', 3600);		//cookie that expires in 3600 minutes(1 hour)
});

Response Redirect​

  • We can redirect to another page
Route::get('redirectme',function(){
	return redirect('/contact');	//go to contact page
});

Route::get('goback',function(){
	return back();					//go to previous page
});

Response a json​

  • We can easily create a json response (for backend APIs)
Route::get('getjson',function() use($posts){
	return response()->json($posts);
});

Response a file​

  • We can return with a file
Route::get('getfile',function(){
	return response()->download(public_path('/image.jpg'),'face.jpg');
});

Response a request​

  • include the Request class at top of file routes/web.php
use Illuminate\Http\Request;
Route::get('/getresult',function(){
	dd(request()->all());				//get all user inputs in the form of an array, dd(dump and die) echos out the result
	dd(request()->input('page'));		//get user input from form/url/json  with that name
	dd(request()->request('page',1));	//get user input from url query parameter, default is set to 1
});
  • when we navigate to address: localhost/getresult?limit=10&page=5, we get the following

laravel-request

Middleware​

  • Before middleware: Run before request reaches the controller, eg. verify that user is authenticated
  • After middleware: Run after request leaves the controller, eg. add headers to response
  • inside the app/Http folder, open filename Kernel.php