guzzlehttp/oauth-subscriber

Guzzle OAuth 1.0 subscriber

1.0.0 2026-07-20 14:10 UTC

Requires

• php: ^7.4 || ^8.0
• guzzlehttp/guzzle: ^8.0
• guzzlehttp/promises: ^3.0
• guzzlehttp/psr7: ^3.0
• symfony/polyfill-php82: ^1.27

Requires (Dev)

• bamarni/composer-bin-plugin: ^1.8.2
• guzzlehttp/test-server: ^1.0
• phpunit/phpunit: ^9.6.34

Suggests

• ext-openssl: Required to sign using RSA-SHA1

MIT

• Graham Campbell
• Michael Dowling
• George Mponos
• Tobias Nyholm

• oauth
• Guzzle

Published on Packagist.org on 2026-07-20 14:11 UTC

README

guzzlehttp/oauth-subscriber is OAuth 1.0 middleware for Guzzle. It signs outgoing Guzzle requests with OAuth credentials when the request uses the auth option value oauth.

Use this package when an API requires OAuth 1.0 request signing. If an API uses OAuth 2.0 bearer tokens, you usually do not need this package; send an Authorization: Bearer ... header with Guzzle instead.

Installation

composer require guzzlehttp/oauth-subscriber

Version Guidance

Version	Status	PHP Version
1.0	Latest	>=7.4,<8.6
0.9	Maintenance	>=7.2.5,<8.6

Quick Start

use GuzzleHttp\Client;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Subscriber\Oauth\Oauth1;

$stack = HandlerStack::create();
$stack->push(new Oauth1([
    'consumer_key' => 'my_key',
    'consumer_secret' => 'my_secret',
    'token' => 'my_token',
    'token_secret' => 'my_token_secret',
]));

$client = new Client([
    'base_uri' => 'https://api.example.com/',
    'handler' => $stack,
]);

$response = $client->get('resource', ['auth' => 'oauth']);

You can also set 'auth' => 'oauth' as a client default when every request sent by that client should be signed.

Documentation

• OAuth 1.0 Middleware Usage
• Signature Methods
• Upgrade Guide
• Changelog

Security

OAuth credentials are secrets. Avoid logging request options that contain oauth values, and make sure retry middleware re-enters this middleware when refreshed credentials must be used.

If you discover a security vulnerability within this package, please send an email to [e-mail]. All security vulnerabilities will be promptly addressed. Please do not disclose security-related issues publicly until a fix has been announced. Please see Security Policy for more information.

License

Guzzle OAuth Subscriber is made available under the MIT License (MIT). Please see License File for more information.