This library aims to ease creation of REST clients. It is blatantly stolen from square/retrofit and implemented in PHP.

Code Quality Rank: L4
Programming language: PHP
License: GNU General Public License v3.0 or later
Tags: HTTP    
Latest version: v3.3.1

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Retrofit PHP

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Retrofit is a type-safe REST client. It is blatantly stolen from square/retrofit and implemented in PHP.


Version 3 introduces many breaking changes. Please review the [upgrade guide](docs/upgrade_2_3.md) before upgrading.


The following is for version 3, please check out the corresponding tag for version 2 documentation

Retrofit allows you to define your REST API with a simple interface. The follow example will attempt to display a typical use-case, but requires two additional libraries. The first uses Guzzle to make http requests as Retrofit does not ship with any default way to make network requests. The second uses a serializer (Gson) to hook into Retrofit's Converter functionality. This allows for automatic serialization of request bodies and deserialization of response bodies.

interface GitHubService
     * @GET("/users/{user}/list")
     * @Path("user")
     * @ResponseBody("App\GithubService\ListRepo")
     * @ErrorBody("App\GitHubService\ApiError")
    public function listRepos(string $user): Call;

Annotations are used to configure the endpoint. Then, the Retrofit class generates a working implementation of the service interface.

$retrofit = Retrofit::builder()
    ->setHttpClient(new Guzzle6HttpClient(new Client())) // requires a separate library
    ->addConverterFactory(new GsonConverterFactory(Gson::builder()->build())) // requies a separate library

$gitHubService = $retrofit->create(GitHubService::class);

Our newly created service is capable of making GET requests to /users/{user}/list, which returns a Call object.

$call = $gitHubService->listRepos('octocat');

The Call object is then used to execute the request synchronously or asynchronously, returning a response.

$response = $call->execute();

// or

    function(Response $response) { }, // response callback (optional)
    function(Throwable $throwable) { } // error callback (optional)

You can then check to see if the request was successful and get the deserialized response body.

if (!$response->isSuccessful()) {
    throw new ApiException($response->errorBody());

$responseBody = $response->body();

Usage examples are referenced from Square's documentation

Installation & Usage

Retrofit 3 requires PHP 7.1

composer require tebru/retrofit-php

Please make sure you also install an http client.

composer require tebru/retrofit-php-http-guzzle6

Install a converter to handle more advanced request and response body conversions.

composer require tebru/retrofit-php-converter-gson


  • [Installation](docs/installation.md)
  • [Getting Started](docs/usage.md)
  • [Advanced Usage](docs/advanced_usage.md)
  • [Annotation Reference](docs/annotations.md)


This project is licensed under the MIT license. Please see the LICENSE file for more information.

*Note that all licence references and agreements mentioned in the Retrofit README section above are relevant to that project's source code only.