CODEWITHSUNDEEP
pythonfalconframework
Slepton
Slepton

Reputation: 99

Returning HTTP responses from service without coupling to Falcon modules

I'm building my user service and am trying to decouple it from the API. When the user service encounters an error, it sets an error attribute on the service in the following format:

{
    'message': '<user friendly error message>',
    'code': '<http code>'
}

However, I don't want to reference falcon at all within the service, so it looks like this in practice:

self.error = {
    'message': 'Duplicate Email',
    'code': 409
}
return False

Now once this is returned to the API, I need to turn that into a falcon.HTTP_XXX object, is the best way of doing this to create a dictionary in the route that has the number as the key and the falcon objects as a reference? Such as:

responses = {
    409: falcon.HTTP_409
    400: falcon.HTTP_400
}

And then taking the return from the user service and then resolving the object be passing the error num as an index? Like:

 user = self.user_service.get_user()
 if not user:
     resp.status = responses[self.user_service.error.code]
     return

Upvotes: 0

Views: 230

Answers (1)

Slepton
Slepton

Reputation: 99

Actually found the solution myself.

Instead of storing the responses in a dictionary, Falcon provides a utility to parse the status from an integer.

falcon.get_http_status(self.user_service.error.code)

https://falcon.readthedocs.io/en/stable/_modules/falcon/util/misc.html#get_http_status

Upvotes: 2

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