Generate Your Own JWT Token in Python without a Library

Discover quick steps to manually create a JSON Web Token (JWT) in Python without using any libraries. Learn how to implement this with simple code examples! --- This video is based on the question https://stackoverflow.com/q/68274543/ asked by the user 'nogabemist' ( https://stackoverflow.com/u/5982721/ ) and on the answer https://stackoverflow.com/a/68409773/ provided by the user 'nogabemist' ( https://stackoverflow.com/u/5982721/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Python manually create jwt token without library Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/licensing The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Generate Your Own JWT Token in Python without a Library Have you ever faced the challenge of needing to generate a JSON Web Token (JWT) in Python without relying on a library? If yes, you're not alone! Many people find the plethora of libraries for JWT overwhelming and sometimes just want to create a simple token without the extra baggage. In this guide, we'll walk you through the process of manually creating a JWT token in Python using straightforward code. What is a JWT? Before we dive into the implementation, let’s quickly recap what a JWT is. A JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. The claims in a JWT are encoded as a JSON object that is used as the payload of a JSON Web Signature structure or as the plaintext of a JSON Web Encryption structure, enabling the token's integrity and authenticity to be verified. JWTs consist of three parts: Header Payload Signature These parts are separated by dots (.) and encoded in Base64Url. Step-by-Step Guide to Create a JWT Token Manually Step 1: Import Required Libraries We will utilize a couple of built-in Python libraries for encoding and hashing: [[See Video to Reveal this Text or Code Snippet]] Step 2: Implement Base64URL Encoding and Decoding Let's create a couple of functions to handle Base64 URL encoding and decoding as JWT tokens require this format. [[See Video to Reveal this Text or Code Snippet]] Step 3: Create the JWT Function Next, we define our main function for generating the JWT. The function will accept parameters for expiration time, user ID, and user role, which will be included in the token payload. [[See Video to Reveal this Text or Code Snippet]] Step 4: Using the JWT Creator Now that we have our jwt_creator function, we can generate a JWT token by calling this function with appropriate arguments, for example: [[See Video to Reveal this Text or Code Snippet]] Conclusion Creating a JWT in Python without using a library is not only possible but also relatively straightforward! With the above steps, you can generate your own JWT tokens tailored to your specific needs. This approach also helps you better understand the JWT structure and the underlying mechanics. Feel free to modify the implementation to suit your application's requirements. Happy coding!