terom@108: import json
terom@108: 
terom@108: class JSONMixin:
terom@108:     MIMETYPE = 'application/json'
terom@108: 
terom@110:     CORS_ORIGIN = None
terom@110:     CORS_METHODS = None
terom@111:     CORS_HEADERS = None
terom@111:     CORS_CREDENTIALS = None
terom@110:     
terom@110:     def headers (self):
terom@110:         if self.CORS_ORIGIN:
terom@110:             yield 'Access-Control-Allow-Origin', self.CORS_ORIGIN
terom@110: 
terom@110:         if self.CORS_METHODS:
terom@110:             yield 'Access-Control-Allow-Methods', ', '.join(self.CORS_METHODS)
terom@110: 
terom@111:         if self.CORS_HEADERS:
terom@111:             yield 'Access-Control-Allow-Headers', ', '.join(self.CORS_HEADERS)
terom@111:         
terom@111:         if self.CORS_CREDENTIALS:
terom@111:             yield 'Access-Control-Allow-Credentials', 'true'
terom@111: 
terom@108:     def render_json(self, **parms):
terom@108:         raise NotImplementedError()
terom@108: 
terom@108:     def render_response(self, **params):
terom@108:         data = self.render_json(**params)
terom@108: 
terom@108:         return json.dumps(data)
terom@108: