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Python API Development Fundamentals

You're reading from   Python API Development Fundamentals Develop a full-stack web application with Python and Flask

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Product type Paperback
Published in Nov 2019
Publisher
ISBN-13 9781838983994
Length 372 pages
Edition 1st Edition
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Authors (3):
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Jack Chan Jack Chan
Author Profile Icon Jack Chan
Jack Chan
Jack Huang Jack Huang
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Jack Huang
Ray Chung Ray Chung
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Ray Chung
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Table of Contents (12) Chapters Close

Preface 1. Your First Step FREE CHAPTER 2. Starting to Build Our Project 3. Manipulating a Database with SQLAlchemy 4. Authentication Services and Security with JWT 5. Object Serialization with marshmallow 6. Email Confirmation 7. Working with Images 8. Pagination, Searching, and Ordering 9. Building More Features 10. Deployment Appendix

Flask-JWT-Extended

Flask-JWT-Extended is a user authentication package that provides the create_access_token function for making new access JWTs. It also provides the jwt_required decorator for protecting the API endpoints (for checking whether users have logged in). Also, the get_jwt_identity() function is provided to get the identity of a JWT in a protected endpoint. This allows us to know who the authenticated users are. This is an extremely useful package for user authentication.

Before we dive into the coming exercise, let's first discuss two very important key configurations that we will be using. They are as follows:

  • SECRET_KEY: This is the key for encrypting the message and generating the signature. We recommend that you use a complex string.
  • JWT_ERROR_MESSAGE_KEY: This is the key for the error message whenever there is an error. The default value is msg, but we are setting that to the message here.

We will work on the user login function together...

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