API Endpoint: Add a new athlete

[ericnicolaas]

Add a new athlete.

Request

Endpoint: POST /athlete/

Body:

• name
• strava connection details
• measurement preference (km or miles)

Maybe include an optional parameter that sets whether to onboard the athlete's activities (#3).

The API endpoint should only be accessible from the client app; all other requests should be denied.

Response

The response object should contain the athlete's ID.

[ericnicolaas]

Closing this as we have opted for a different approach, where the Strava connection is created via the Express server instead of via the client.