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Python Flask REST API Resourceful Blueprints Parse the Request

Tom Lamb
Tom Lamb
9,472 Points

Can someone see where I went wrong? [SOLVED]

I have been around the community answers and i can't seem to see where there is an issue here! Help :)

resources/ingredients.py
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,
            help = 'Please provide a name',
            location = ["form", "json"]
        )
        self.reqparse.add_argument(
            'description',
            required = True,
            help = 'Please provide a description',
            location = ["form", "json"]
        )
         self.reqparse.add_argument(
            'measurement_type',
            required = True,
            help = 'Please provide a measurement_type',
            location = ["form", "json"]
        )
        self.reqparse.add_argument(
            'quantity',
            required = True,
            help = 'Please provide a quantity',
            location = ["form", "json"],
            type = float
        )
        self.reqparse.add_argument(
            'recipe',
            required = True,
            help ='Please provide a recipe',
            location = ["form", "json"],
            type = inputs.positive
        )
        super().__init__()

    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>')
Tom Lamb
Tom Lamb
9,472 Points

I will answer my own question here for anyone who might have a similar issue :)

So absolutely nothing wrong with this code. I copied it into pycharm and the formatting was weird even though it looks fine here... I tested with postman and no issues... so I then copied it back and it worked...

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 67,464 Points

Hey Tom Lamb, your self solution lead me to the actual error. Inconsistent use of TABs and SPACEs.

The formatted code may appear correct, and even work after copying if the copied-and-pasted code gets cleaned up in the process. Lines 9 and 43 have tabs.

It only seems like magic. The real error is there somewhere. Cheers!