Authenticate Python API with Azure Active Directory Native using Auth0

# Controllers API

# This doesn't need authentication
@APP.route("/api/public")
@cross_origin(headers=["Content-Type", "Authorization"])
def public():
    response = "Hello from a public endpoint! You don't need to be authenticated to see this."
    return jsonify(message=response)

# This needs authentication
@APP.route("/api/private")
@cross_origin(headers=["Content-Type", "Authorization"])
@requires_auth
def private():
    response = "Hello from a private endpoint! You need to be authenticated to see this."
    return jsonify(message=response)

# This needs authorization
@APP.route("/api/private-scoped")
@cross_origin(headers=["Content-Type", "Authorization"])
@requires_auth
def private_scoped():
    if requires_scope("read:messages"):
        response = "Hello from a private endpoint! You need to be authenticated and have a scope of read:messages to see this."
        return jsonify(message=response)
    raise AuthError({
        "code": "Unauthorized",
        "description": "You don't have access to this resource"
    }, 403)