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Mastering Flask

You're reading from   Mastering Flask Gain expertise in Flask to create dynamic and powerful web applications

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Product type Paperback
Published in Sep 2015
Publisher Packt
ISBN-13 9781784393656
Length 288 pages
Edition 1st Edition
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Author (1):
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Jack Stouffer Jack Stouffer
Author Profile Icon Jack Stouffer
Jack Stouffer
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Toc

Table of Contents (15) Chapters Close

Preface 1. Getting Started 2. Creating Models with SQLAlchemy FREE CHAPTER 3. Creating Views with Templates 4. Creating Controllers with Blueprints 5. Advanced Application Structure 6. Securing Your App 7. Using NoSQL with Flask 8. Building RESTful APIs 9. Creating Asynchronous Tasks with Celery 10. Useful Flask Extensions 11. Building Your Own Extension 12. Testing Flask Apps 13. Deploying Flask Apps Index

POST requests


Using our new knowledge of the Flask Restful parser, the POST endpoint can be added. First, we will need a parser that will take a title, the body text, and a list of tags. In the parser.py file, add the following:

post_post_parser = reqparse.RequestParser()
post_post_parser.add_argument(
    'title',
    type=str,
    required=True,
    help="Title is required"
)
post_post_parser.add_argument(
    'text',
    type=str,
    required=True,
    help="Body text is required"
)
post_post_parser.add_argument(
    'tags',
    type=str,
    action='append'
)

Next, the PostApi class will need a post method to handle incoming requests. The post method will use the given values for the title and body text. Also, if the tags key exists, then add the tags to the post, which creates new tags if the passed ones do not exist:

import datetime
from .parsers import (
    post_get_parser,
    post_post_parser
)
from webapp.models import db, User, Post, Tag


class PostApi(Resource):
    …
    def...
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