Gmail: RESTful APIs

Step 4: RESTful APIs

With the scale in view, we can define what the service actually exposes. A RESTful email service needs clear, stateless endpoints for the core email operations. Stateless means each request carries everything the server needs, so no server keeps session data between calls. Every API uses standard HTTP methods and JSON, which web and mobile clients handle easily.

I. Send Email API (POST /emails/send)

This endpoint lets the client compose and send an email.

Request structure

• Endpoint: POST /emails/send