Azure Access Token Sinatra Application

This Sinatra application provides an endpoint to retrieve an Azure access token using the client credentials flow. It utilizes the HTTParty gem to make HTTP requests to Azure's OAuth2 token endpoint.

Requirements

• Ruby 3.0 or higher
• Sinatra
• Puma
• HTTParty

Installation

1. Clone the Repository:

git clone https://your-repository-url.git
cd your-repository-directory

2. Install Dependencies:

Ensure you have Bundler installed, then install the required gems:

gem install bundler
bundle install

3. Set Environment Variables:

The application requires the following environment variables set in the shell session:

• AZURE_CLIENT_ID: Your Azure Client ID.
• AZURE_FEDERATED_TOKEN_FILE: Path to your federated token file.
• AZURE_TENANT_ID: Your Azure Tenant ID.

Running the Application

Start the application using:

bundle exec rackup -p 4567

Where 4567 is the port number. By default, the application will be accessible at http://localhost:4567

Endpoint

GET /azure_access_token Retrieves an Azure access token using the client credentials flow. The response is the access token in plain text if successful, or a 500 error if the token retrieval fails.

Response:

• Success (200 OK): Returns the Azure access token as plain text.

• Failure (500 Internal Server Error): Returns the message Failed to get token if the token retrieval fails.

Testing

To run tests using RSpec:

1. Install Testing Dependencies:

bundle install --with test

2. Run Tests:

bundle exec rspec

License

This project is licensed under the MIT License.