Hands-On Docker for Microservices with Python

Serializing results

We need to return our results. The easiest way to do so is by defining the shape the JSON result should have through a serializer or marshalling model (https://flask-restplus.readthedocs.io/en/stable/marshalling.html).

A serializer model is defined as a dictionary with the expected fields and a field type:

from flask_restplus import fieldsmodel = {    'id': fields.Integer(),    'username': fields.String(),    'text': fields.String(),    'timestamp': fields.DateTime(),}thought_model = api_namespace.model('Thought', model)

The model will take a Python object, and convert each of the attributes into the corresponding JSON element, as defined in the field:

@api_namespace.route('/me/thoughts/')class MeThoughtListCreate(Resource): @api_namespace.marshal_with(thought_model) ...