Response strategy base class

All of the response strategy classes return data. We need to decide what else should be returned. Here are the keys we return in the JSON response for the purposes of this discussion:

Key	Description
status	HTTP status code
data or error	Data if the operation is successful, and there is data to be returned Error if a problem was encountered
link	The original page requested

 

In the base class, we need to import the json module and define a few properties needed:

# web.responder.strategy.base
import json
class Base :    
    headers   = []
    data   = {}
    error  = ''
    status = 200
    link   = ''

Next, even though HTTP status codes are available in the http.HTTPStatus class (https://docs.python.org/3/library/http.html#http.HTTPStatus), the codes are configured as an enum, which proves awkward to use for our purposes. Accordingly, we define the HTTP status codes we use as a dictionary:

    http_status  = ...