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Revision: Thu, 25 Apr 2024 11:06:42 GMT
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Request and Input

As mentioned in Http Flow you can access incoming request in your controllers and services using "request" binding, or via ServerRequestInterface dependency. Such instance is only available inside HttpDispatcher perform method.

As result we are able to access user request in our controllers using 3 different approaches:

php
protected function indexAction(ServerRequestInterface $request)
{
    dump($request->getQueryParams());
    dump($this->request->getQueryParams());
    dump($this->container->get(ServerRequestInterface::class)->getCookieParams());
}

However, PSR7 implementation is not very user friendly. Spiral framework provides specific service InputManager (InputInterface) used to simplify reading request properties. InputManager can be retrieved using it's class name or short binding "input". Let's rewrite previous example using input manager:

php
protected function indexAction(InputManager $input)
{
    dump($input->cookies->all());
    dump($input->query->all());
    
    //POST or JSON data
    dump($this->input->data);
}

Working with InputManager

You can use input manager to access full array of input data or any specific field by it's name (dot notation is allowed for nested structures). Every input structure are represented using InputBag class with set of common methods, let's review query accessing as example:

php
/**
 * @var InputManager $input
 */
 
//Get instance of QueryBag associated with query data
dump($input->query);
 
//Get all query params as array
dump($input->query->all());
 
//Count of query params
dump($input->query->count());
 
//Check if parameter "name" presented in query
dump($input->query->has('name'));
 
//Get value for parameter "name"
dump($input->query->get('name'));
 
//Both get and has methods support dot notation for nested structures
dump($input->query->has('name.subName'));
dump($input->query->get('name.subName'));
 
//Fetch only given query params (no dot notation allowed), only existed records will be returned
dump($input->query->fetch(["name", "nameB"]);

//Fetch only given query params (no dot notation allowed), non existed records will be filled with `null`
dump($input->query->fetch(['name', 'nameB'], true, null);

//In addition query get method has short alias in input manager
dump($input->query('name'));

Please note that InputManager always refer to active user request, you are not able to use this class outside of http scope.

Input headers

We can use 'headers' input bad and header method in InputManager to access input headers. HeadersBag has few additions we have to mention:

  • HeaderBad will automatically normalize requested header name
  • "get" method will implode header values using ',' by default
php
dump($input->headers->all());

//Will be normalized into "Accept"
dump($input->headers->get('accept')); 

//Return Accept header as array of values
dump($input->headers->get('accept', false));

dump($input->header('accept'));

Cookies

php
dump($input->cookies->all());
dump($input->cookie('name'));

Server variables

php
dump($input->server->all());
dump($input->server('name'));

ServerBag will automatically normalize all requested server values. This makes it possible to get value without using all uppercase letters for the names:

php
dump($input->server('SERVER_PORT'));
dump($input->server('server-port'));

Post/Data parameters

php
dump($input->data->all());
dump($input->data('name'));

//An alias
dump($input->post('name'));

Post/Data with fallback to Query parameters

If you want to read value from POST data and then from Query simply use method input.

php
dump($input->input('name'));

PSR7 request attributes

php
dump($input->attributes->all());
dump($input->attribute('name'));

Uploaded Files

To get a list of the uploaded files or individual file use the files bag and file method. Every uploaded file instance is represented using UploadedFileInterface which is part of PSR7.

php
dump($this->input->files->all());
dump($this->input->files('upload'));
	
//If you want to get finename pointing to file content you can use `localFilename` method, attention, this is not local filename
//but unique stream uri which can work only inside spiral
dump($input->files->localFilename('upload'));

Per PSR all files will be organized to valid hierarchy, which differs from default way php handle uploaded files, you can use dot notation to access nested file instances.

Simplified methods

In addition to data methods and InputBags InputManager provides set of methods to read various properties of active request.

php
//Request Uri path, will always include leading /
dump($input->getPath());

//Active request Uri instance
dump($input->getUri());

//GET, POST, PUT...
dump($input->getMethod());

//Check if connection made over https
dump($input->isSecure());

//Check request headers to verify that request made over ajax
dump($input->isAjax());

//Check is request expects application/json as response (Accept: application/json)
dump($input->isJsonExpected());

//Receive client ip address (this method uses _SERVER value and may not be correct in some cases).
dump($input->remoteAddress());