Check connection state

[RedNeath]

Create a route capable of telling whether one user is identified or not.

Input:

• a JWT authentication token.

Ouptut:

• nothing, just the HTTP code saying wheter the request was a success or not.

Data	Description	Result
No data	JWT token required, so the request can't be processed	Fail
An expired JWT token	If the token is expired, the user is not authenticated anymore	Fail
An expired JWT token and extra fields	Extra fields will not be processed	Fail
An invalid JWT token	If the token cannot be recognised, the user is not authenticated	Fail
An invalid JWT token and extra fields	Extra fields will not be processed	Fail
A valid JWT token	The user is authenticated	Success
A valid JWT token and extra fields	Extra fields will not be processed	Success