amphp/http-client-psr7

AMPHP is a collection of event-driven libraries for PHP designed with fibers and concurrency in mind.
This package provides an PSR-7 adapter and PSR-18 client as a plugin for amphp/http-client.

Installation

This package can be installed as a Composer dependency.

composer require amphp/http-client-psr7

Requirements

PHP 8.1+

Usage

Create Amp\Http\Client\Psr7\PsrAdapter instance to convert client requests and responses between native Amp and PSR-7 formats. Adapter doesn’t depend on any concrete PSR-7 implementation, so it requires PSR-17 factory interfaces to create PSR-7 requests and responses.

Use Amp\Http\Client\Psr7\PsrHttpClient as a drop-in implementation of a PSR-18 ClientInterface.

<?php
require 'vendor/autoload.php';
use Amp\Http\Client\HttpClientBuilder;
use Amp\Http\Client\Psr7\PsrAdapter;
use Amp\Http\Client\Psr7\PsrHttpClient;
use Laminas\Diactoros\RequestFactory;
use Laminas\Diactoros\ResponseFactory;
// Note the laminas/laminas-diactoros library is used only as an example.
// You can use any library providing an implementation of PSR-17.
// PSR-17 request factory
$psrRequestFactory = new RequestFactory();
// PSR-17 response factory
$psrResponseFactory = new ResponseFactory();
$psrAdapter = new PsrAdapter($psrRequestFactory, $psrResponseFactory);
$ampHttpClient = HttpClientBuilder::buildDefault();
$psrHttpClient = new PsrHttpClient($ampHttpClient, $psrAdapter);
$request = $psrRequestFactory->createRequest('GET', 'https://google.com');
// $response is a PSR-7 ResponseInterface instance.
$response = $psrHttpClient->sendRequest($request);

There are few incompatibilities between Amp and PSR-7 implementations that may require special handling:

PSR-7 requests contain only one protocol version, but Amp requests can contain several versions. In this case the adapter checks if the protocol version list contains a version that is the current PSR-7 implementation default, otherwise it throws an exception. You may also set the protocol version explicitly using the optional argument of the toPsrRequest() method.
Amp responses contain a reference to the Request instance, but PSR-7 responses don’t; so you need to provide a request instance explicitly.

Examples

More extensive code examples reside in the examples directory.

Versioning

amphp/http-client-psr7 follows the semver semantic versioning specification like all other amphp packages.

Security

If you discover any security related issues, please use the private security issue reporter instead of using the public issue tracker.

License

The MIT License (MIT). Please see LICENSE for more information.