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falcon_sugar

Build Status Maintainability Test Coverage

A little bit of sugar for Falcon apps.

Installation

pipenv install falcon_sugar

or

pipenv install falcon_sugar[marshmallow]

Usage

falcon_sugar.Resource

This class lets you write request handlers that return their results rather than writing to resp.media:

import falcon

from falcon_sugar import Resource


# This:
class People(Resource):
  def on_get(self, req, resp):
    return {"people": []}

  def on_post(self, req, resp):
    return falcon.HTTP_201, {}


class Person(Resource):
  def on_delete(self, req, resp, pk):
    pass


# Instead of this:
class People:
  def on_get(self, req, resp):
    resp.media = {"people": []}

  def on_post(self, req, resp):
    resp.status = falcon.HTTP_201
    resp.media = {}


class Person(Resource):
  def on_delete(self, req, resp, pk):
    resp.status = falcon.HTTP_201

falcon_sugar.marshmallow

A Marshmallow-based validator.

from falcon_sugar import Resource, marshmallow
from marshmallow import Schema, fields, post_load, validate


class PersonSchema(Schema):
    id = fields.Integer(dump_only=True)
    name = fields.String(required=True)
    age = fields.Integer(required=True, validate=[validate.Range(0, 130)])

    @post_load
    def make_person(self, data):
        return PersonModel(**data)


class People(Resource):
    person_schema = PersonSchema()

    @marshmallow.dump(person_schema, many=True)
    def on_get(self, req, resp):
        return [PersonModel(id=1, name="Jim Gordon", age=36)]

    @marshmallow.validate(person_schema)
    @marshmallow.dump(person_schema)
    def on_post(self, req, resp):
        person = req.context["marshmallow"]
        person.save()
        return falcon.HTTP_201, person

Limitations

Any decorator that doesn't return the result of the decorated function will make it so that Resources don't return a result. This means that builtin Falcon decorators like before and after are incompatible with this library.

License

falcon_sugar is licensed under Apache 2.0. Please see LICENSE for licensing details.

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A little sugar for Falcon applications.

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