Capture incoming request data

Question

I have been experimenting with the current version of the wonderful package for routing from thephpleague.

I have a simple index page to handle the routing and it works just fine.

<?php declare(strict_types=1);

use Laminas\Diactoros\ServerRequestFactory;
use Laminas\HttpHandlerRunner\Emitter\SapiEmitter;
use Laminas\Diactoros\ResponseFactory;
use League\Route\Router;
use League\Route\Strategy\JsonStrategy;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

$strategy = new JsonStrategy(new ResponseFactory());
$router = new Router;
$router->setStrategy($strategy);

$router->post(
    '/hello',
    function (ServerRequestInterface $request): ResponseInterface
    {
        var_dump($request->getParsedBody());
    }
);

$request = ServerRequestFactory::fromGlobals(
    $_SERVER,
    $_GET,
    $_POST,
    $_COOKIE,
    $_FILES
);
$response = $router->dispatch($request);

// send the response to the browser
(new SapiEmitter)->emit($response);

My problem is when I send a POST request with JSON data in it, I am unable to capture it in my code as indicated by the line var_dump($request->getParsedBody());.

At the moment, the only way I am able to capture the data sent with the request is by running json_decode(file_get_contents('php://input'), true);.

What I do need to do in order to get the payload sent with whatever request, be it GET, POST, PUT, PATCH, or otherwise?

Thank you.

Did you send your POST request with the appropriate Content-Type header, so the server _knows_ it is supposed to be JSON? — CBroe, Mar 24 '21 at 11:22
@CBroe Yes, I am using [insomnia](https://insomnia.rest/products/insomnia) to send my requests. — kellymandem, Mar 24 '21 at 11:29
What actual implementation of `ServerRequestInterface` is this using? — CBroe, Mar 24 '21 at 11:34

score 2 · Accepted Answer · answered Mar 24 '21 at 12:26

I finally figured it out. After close examination, I think using dependency injection, ServerRequestInterface is mapped to Laminas\Diactoros\ServerRequest.

So, to illustrate

$router->post(
    '/hello',
    function (ServerRequestInterface $request): ResponseInterface {
        var_dump(
            $request->getHeaders(),
            $request->getParsedBody(),
            $request->getQueryParams(),
            $request->getUploadedFiles(),
            $request->getBody()->getContents(),
            $request // Laminas\Diactoros\ServerRequest
        );
    }
);

where

$request->getHeaders() gives you the request headers
$request->getParsedBody() will return to all the data as an array sent through when the header Content-Type: multipart/form-data is set (at least as far as I have experimented)
$request->getQueryParams() gives all the query string params as an array just like $_GET
$request->getUploadedFiles() gives all the the uploaded files as an array of instances of Laminas\Diactoros\UploadedFile
$request->getBody()->getContents() will return to all data the as a string when the header Content-Type: application/json is set. You can then run json_decode($request->getBody()->getContents(), true) to get the actual contents an array

I'm not sure how this answer fits your question, but the reason is that laminas/diactoros does not fully handle requests with a JSON body. See also: https://stackoverflow.com/a/73671455/314056 — Christian, Sep 10 '22 at 12:38

Capture incoming request data

1 Answers1