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Example code of retrochaos/trustpilot-authenticator

Informations about the package trustpilot-authenticator

Trustpilot Authenticator

A PHP library for obtaining access tokens for the Trustpilot Business User OAuth API.

Originally developed and open-sourced by moneymaxim.

Fully modernised to:

Install

Install via Composer:

The package has no external dependencies other than Symfony’s HTTP client (automatically installed).

Supported OAuth Flows

This library supports all Trustpilot Business OAuth grant types:

Flow Method
Password (legacy, deprecated but still works for old apps) requestPasswordAccessToken()
Client Credentials (server-to-server) requestClientCredentialsAccessToken()
Authorization Code (interactive user login) requestAuthorizationCodeAccessToken()
Refresh Token refreshAccessToken()
Revoke Refresh Token revokeRefreshToken()
Build Authorization URL buildAuthorizationUrl()

Usage

Create the authenticator

1. Password Grant (Deprecated by Trustpilot)

Useful only for older Trustpilot applications pre-February 2025.

The alias getAccessToken() still works for backwards compatibility.

2. Client Credentials Grant (Recommended)

Best for server-to-server integrations.

3. Authorization Code Grant (Interactive User Login)

Step 1 — Redirect the user to login

Step 2 — Exchange the returned code for a real access token

4. Refresh an Access Token

5. Revoke a Refresh Token

6. buildAuthorizationUrl()

buildAuthorizationUrl() constructs a Trustpilot-compatible login URL for the Authorization Code OAuth flow.

Signature

Parameters

Parameter Description
clientId Your Trustpilot API key
redirectUri URL that Trustpilot redirects the user back to
state Optional anti-CSRF or session identifier
scopes Optional list of OAuth scopes as an array of strings

Example

Example output:

What you do with it

Error Handling

All errors throw a single exception type:

AccessToken Object

Every method returns an AccessToken instance:

Tests

A full PHPUnit test harness is included and covers:

Run tests with:

License

MIT License — feel free to use, modify, and contribute.

All versions of trustpilot-authenticator with dependencies

PHP Build Version
Package Version
Requires ext-json Version *
php Version >= 8.2
symfony/http-client Version ^7.3
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