Welcome to the Treehouse Community
The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Brandon Meredith
29,350 PointsStuck on reqparser challenge
Challenge - The API needs to be able to validate input from users. Use reqparse and add arguments for each field in the Ingredient model to the IngredientList resource. Remember to add the RequestParser instance to the resource instance as self.reqparse. • name, description, and measurement_type should all be strings (the default) • quantity should be a normal Python float • recipe should be positive, which you'll get from inputs They should all be required and have their location set to ["form", "json"].
However, I keep ending up with: Bummer! "description" should be in the arguments, required, and located in form or json; "measurement_type" should be in the arguments, required, and located in form or json; "name" should be in the arguments, required, and located in form or json; "quantity" should be in the arguments, of type float, required, and located in form or json; "recipe" should be in the arguments, of type positive, required, and located in form or json
I know it's something silly, but my laced mind has not had a chance to get up to speed today. Any suggestions?
from flask import Blueprint
from flask.ext.restful import Resource, Api, reqparse, inputs
import models
class IngredientList(Resource):
def __init__(self):
self.reqparse = reqparse.RequestParser()
self.reqparse.add_argument(
'name',
required=True,
location=['form', 'json']
)
self.reqparse.add_argument(
'description',
required=True,
location=['form', 'json']
)
self.reqparse.add_argument(
'measurement_type',
required=True,
location=['form', 'json']
)
self.reqparse.add_argument(
'quantity',
required=True,
location=['form', 'json'],
type=float
)
self.reqparse.add_argument(
'recipe',
required=True,
location=['form', 'json'],
type=inputs.postive
)
def get(self):
return 'IngredientList'
class Ingredient(Resource):
def get(self, id):
return 'Ingredient'
ingredients_api = Blueprint('resources.ingredients', __name__)
api = Api(ingredients_api)
api.add_resource(IngredientList, '/api/v1/ingredients')
api.add_resource(Ingredient, '/api/v1/ingredients/<int:id>')
2 Answers

Kenneth Love
Treehouse Guest Teacherpostive
isn't positive
:)
Can't make the error show in the CC, though, :S

Brandon Meredith
29,350 PointsNote to self: Wait for coffee
Brandon Meredith
29,350 PointsBrandon Meredith
29,350 Points....DOH - Homer