MakeAuth constructs the auth middleware function.

MakeCORS sets up CORS with a token header.

MakeLogger initializes the logger middleware function.

InvalidTokenMessage is the message set when an invalid / missing token is found.

TokenPathParam is the name of the path parameter used by URLAuthPrefix.

URLAuthPrefix is the echo formatted url/path param which can be used for supplying an API token.

AuthMiddleware provides some data to the handler.

LoggerMiddleware provides some extra state to the logger middleware.