Flask Authorization Token

Imagine for instance this code to get the current user:. This tutorial takes a test-first approach to implementing token-based authentication in a Flask app using JSON Web Tokens (JWTs). The second one consumes the API and makes a web interface for it. This is an upate to an older post titled “JWT authentication with Flask and Angular 2: a simple end-to-end example” that provided a simple JWT example using Angular 2. When the authorization is granted, the authorization server returns an access token to the application. Eve supports several authentication schemes: Basic Authentication, Token Authentication, HMAC Authentication. Python Flask Application: Our Python Flask application will require the Header x-api-key dhuejso2dj3d0 in the HTTP Request, to give us a 200 HTTP Status code, if not, we will respond with a 401 Unauthorized Response:. Auth needs to be pluggable. I've been using flask-jwt-extended for my application and one of the problems I had was logging a session out and making sure the token is not usable anymore. Download ngrok. Python and Flask are used in all of the examples. Token auth in flask is something I was going to work on soon. You can find more intricate details about token based authentication here. GitHub accepts sending OAuth tokens as a query parameter, but it is less secure because URLs can be logged by any system along the request path. Thus if the user changes his or her password their existing authentication. Before creating the authorization server, we need to understand several concepts:. The realm value is a string, generally assigned by the origin server, that can have additional semantics specific to the authentication scheme. Click the "Create Token" button. Advanced token. We attempt to send a push approval request to the user. Installing Modules. check_token() to locate the user that owns the provided token. get_auth_token. GitHub (app=None) ¶ Provides decorators for authenticating users with GitHub within a Flask application. In another tutorial, we saw that Basic authentication relies on a Base64 encoded 'Authorization' header whose value consists of the word 'Basic' followed by a space followed by the Base64 encoded name:password. One implements some API which uses tokens for auth. Now, client sends that token in each request using the “Authorization” header. service calls; calls on behalf of the user who created the client. Objectives. My token verification function uses User. If we want to share this collection with our colleagues, we would have to replace the auth token on every endpoint. In our user class we need to implement a get_auth_token method which will return a secure token string which will be stored in a cookie. Flask-Login采用session机制来实现用户的校验,即当首次登录成功后产生token,浏览器在后续的访问中会将token发送到服务端,服务端根据校验token解析出来的信息来判断后续的访问是否是已经. For a while now I’ve been doing some study on constructing and consuming microservices using Flask and a combination of tools. {"categories":[{"categoryid":387,"name":"app-accessibility","summary":"The app-accessibility category contains packages which help with accessibility (for example. Django is a high-level Python framework that encourages the perfection of. Authorization can be controlled at the level of file system or use a variety of configuration options such as application level chroot. Here I try to explain how to test Flask-based web applications. Before charges and payouts are enabled for connected accounts, “Know Your Customer” (KYC) requirements need to be fulfilled. Authorization Server¶ The Authorization Server provides several endpoints for authorization, issuing tokens, refreshing tokens and revoking tokens. JWT is a type of token-based authentication. When it comes time to check authorization rules, we often see the role being checked. js and Flask. redirect_uri – the redirect uri that was used in the authorize call. , cryptographic properties) based on the resource server security requirements”. Over the past two months, I've spent a lot of time learning about designing and implementing REST APIs. Earlier this week, Nintendo announced that Ori and the Blind Forest is coming to the Switch later this year. authorization(). Authlib is built from low level of specifications to high level of framework integrations. 26; Flask로 API 서버 만들기 (8) - Extra tips (Makefiles) 2018. The accompanying flask-lastuser library implements the client side for the Flask microframework. client oauth flows, and part 5 is about integrating parts 2 & 3. {"categories":[{"categoryid":387,"name":"app-accessibility","summary":"The app-accessibility category contains packages which help with accessibility (for example. The framework has 5 authentication methods and you choose one of them, you configure the method to be used on the config. Token based account activation (optional) Token based password recovery / resetting (optional) User registration (optional) Login tracking (optional) JSON/Ajax Support. Flask-OIDC is an extension to Flask that allows you to add OpenID Connect based authentication to your website in a matter of minutes. The auth token is supplied in the request through an HTTP header or query string parameter. Then you can specify different database_names, such. These examples cover all authentication methods currently supported by PyMongo, documenting Python module and MongoDB version dependencies. Go to the API tab. If not, or if you want a quick refresh, I've written an introduction to Designing a RESTful Web API. The first thing to do is create a flask object and handle the home page url. These are long lived tokens which can be used to create new access tokens once an old access token has expired. These methods are discussed in the client token setup section. In our user class we need to implement a get_auth_token method which will return a secure token string which will be stored in a cookie. If the user isn't logged in an empty object is returned. Site R fetches the requested resource, using the authentication token in question. Objectives. It can be exchanged by you for an Access Token, Refresh Token, and/or ID Token from the token endpoint. django-social-auth itself was a product of modified code from django-twitter-oauth and django-openid-auth projects. In a future release, Flask-Tweepy will support OAuth authentication for end-users, which will allow your application to tweet as your end users, retrieve their timeline, etc. Authentication tokens are generated using the user’s password. Now that your Flask OAuth tool is set-up here are some next steps to consider: Use the OAuth token data stored in flask. Must return the access_token used to make requests to GitHub on the user's behalf. The authorization is expressed in the form of an authorization grant, which you use to request the tokens. To verify the auth_token, we used the same SECRET_KEY used to encode a token. I will keep posting more awesome things I learn in my GSoC journey. 0 and OAuth 2. To make protected query or mutation with auth decorators, we have to make union with flask_graphql_auth. In this post we'll use Flask-JWT. Flask-Security is an opinionated Flask extension which adds basic security and authentication features to your Flask apps quickly and easily. Using Token Based Authentication, clients are not dependent on a specific authentication mechanism Which of the following would be an example of token-based authentication. The goal of this post is to give a very basic introduction to token based authentication using Flask-Login. My idea with this prototype is to build one mobile application (with Ionic) and validate one TOTP token in a server (in this case a Python/Flask application). You can replace flask with django, pylons or any other framework you use, but this tutorial and code example is based on flask. I'm pretty sure you already saw this, but I'll leave this here anyway for people who has not: RESTful Authentication with Flask This one is the best article I've read covering the topic of REST, auth and Flask. Query a database using the NDB client library. I have tried putting my authorization decorator. One thing I am absolutely not clear yet is how you keep the user logged if the token expires after x seconds. Integer, primary_key=T. To make protected query or mutation with auth decorators, we have to make union with flask_graphql_auth. Master RESTful API development with Python and Flask About This Video Understand how RESTful CRUD APIs can be built using Python and Flask Familiarize yourself with the Flask framework and - Selection from Web API Development with Flask [Video]. JSON Web Tokens (JWTs) are being prescribed as a panacea for webapp security, but you need to know your security basics before you can implement them with peace of mind. Github oauth2 example. See code below:. Search form. Note that middlewares=[auth_middleware] added to Application instance creation. Bearer authentication (also called token authentication) is an HTTP authentication scheme that involves security tokens called bearer tokens. To provide secure tokens in email-confirmation emails. Let you restrict views to logged-in (or logged-out) users. To make the AJAX requests from my front-end to my Python Eve API server I use the superagent module. OAuth is not technically an authentication method, but a method of both authentication and authorization. Login to your Flask app with Google In this article you will learn how to use Google for login authentication in a Flask app. The auth token is supplied in the request through an HTTP header or query string parameter. x from werkzeug. To provide secure tokens in reset-password emails. In this tutorial, I tried to show that adding JWT authorization is not a big deal if you use the right tools. 몇년전에 웹 공부할때 로그인 구현을 session과 쿠키에 넣어서 한적이 있었는데, 왜 굳이 flask에서는 jwt인증이란걸 쓰는지 모르겠다. I have 2 Flask apps (different projects) that work together. One implements some API which uses tokens for auth. 0 is the industry-standard protocol for authorization. Lastuser is an authorization-only server and defines a protocol for passing authorization tokens to resource servers. The realm value is a string, generally assigned by the origin server, that can have additional semantics specific to the authentication scheme. This will give you the option to visit your auth token user settings, where you can create a new auth token, or simply copy an existing one. My logout function in flask looks like this: @app. Flask-Security就好了。 且支持的功能也多: Session based authentication. Since superset_config. Before charges and payouts are enabled for connected accounts, “Know Your Customer” (KYC) requirements need to be fulfilled. With Netatmo connect, creative people can imagine solutions to make users' life easier. Learning one will make learning the other very straightforward. You can vote up the examples you like or vote down the ones you don't like. Flask-Login is a Flask extension that provides a framework for handling user authentication. They include: 1. Flask token based authentication. Let's learn how to develop RESTful APIs with Python and Flask. To verify the auth_token, we used the same SECRET_KEY used to encode a token. A JWT token asserts which user is logged in, thereby saving the server another call to the database for authentication. Authentication with Flask-JWT. JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. You can find all of those parameters (and more) in your Twilio Account Console and your Authy dashboard. class flask_jwt. 몇년전에 웹 공부할때 로그인 구현을 session과 쿠키에 넣어서 한적이 있었는데, 왜 굳이 flask에서는 jwt인증이란걸 쓰는지 모르겠다. Use Python and Flask to build amazing web applications, just the way you want them! Learn how to use forms, authentication, and authorization control through extensions, and provide a robust, safe web experience for the client; Free yourself from the SQL vs NoSQL paradigm and use the technology that best fits your needs. 0 access tokens. These tokens are used in the following places: To securely store User IDs in the browser session cookie. As a follow-up of my previous post on JWT authentication in Flask, I want to discuss the implications of using RS256 algorithm for signing the tokens with Flask-JWT library. Store user credentials and associated data in Cloud Datastore. This is the amount of time that the token can be used to access routes in the api. Publish your source code in a git repository. This access token expires in 48 hours (as specified by the "expires_in" field). Role management. In this tutorial, I tried to show that adding JWT authorization is not a big deal if you use the right tools. In this Flask tutorial, we will check how to get the username and the password from a HTTP request made to a Flask server with basic authentication. privacyIDEA is a modular authentication server that can be used to enhance the security of your existing applications like local login, VPN, remote access, SSH connections, access to web sites or web portals with two factor authentication. How to check for a JSON Web Token (JWT) in the Authorization header of an incoming HTTP request. To provide secure tokens in email-confirmation emails. The team working on connect for JIRA / Confluence haven't done a lot with Python, besides a bit of work during innovation weeks. The article Minimal Flask Login Example provided an introduction to token based authentication using the Flask-Login extension for the Flask web framework. This example uses Flask, but should be easily portable to other application frameworks. make_secure_token (*args, **options) [source] ¶. Retrieving OAuth1 Access Token. Want to try Python and Flask? Check out Token-Based Authentication With Flask. Limitations of their application mean that headers cannot be dynamically set. An access token is a string representing an authorization issued to the. Objectives. The Authorization Server then validates the user credentials and provides an Access Token AND an ID Token to the client. Postman helps us get around this by using variables in our collection. Once a token. there is no third party). Advanced token. The authentication listener should set this token directly in the TokenStorageInterface using its setToken() method. I have tried putting my authorization decorator. To obtain a refresh token on the login endpoint send the optional parameter "refresh": true on the JSON PUT payload. Client Credentials Overview. We'll create a directory to use for this tutorial. Final words. from __future__ import absolute_import import functools import sys import flask import oslo_i18n from oslo_log import log from oslo_middleware import healthcheck import six try: # werkzeug 0. Flask-RESTful encourages best practices with minimal setup. In this blog post, you will learn how to create a Python app using Flask and the Google API which will: Support Google Authentication with Python and Flask Restrict access via an OAuth scope, so that the app can only view and manage Google Drive files and folders which were created by the app Read and write files on the user’s Google Drive with Python. Also, url handler to check request. But to how validate them? Like identity cards, they contain a number of attributes, or claims. Want to try Python and Flask? Check out Token-Based Authentication With Flask. This token is self-descriptive, it contains all necessary information about the token itself, user cannot change for example expiration date or any other claim, because this token is generated (signed) by the server with secret keyword. Welcome to LinuxQuestions. One implements some API which uses tokens for auth. 0 and OAuth 2. Token's are more secure because they can contain a scope ( Access Level) and an Expiry. Designed specifically to work with Hypertext Transfer Protocol (HTTP), OAuth essentially allows access tokens to be issued to third-party clients by an authorization server, with the approval of the resource owner. Flask-HTTPAuth Documentation information needs to be stored so that it can be recalled later. To provide secure tokens in email-confirmation emails. Consider to buy a commercial plan. A very common pattern is to store user authorization information and database connections on the application context or the flask. My idea with this prototype is to build one mobile application (with Ionic) and validate one TOTP token in a server (in this case a Python/Flask application). To make the authentication flow secure when using session storage, it is required that server-side sessions are used instead of the default Flask cookie based. I have Python/Flask application with a login screen. There are some very important factors when choosing token based authentication for your application. I use flask-restful to create my APIs. Authorization can be controlled at the level of file system or use a variety of configuration options such as application level chroot. When it expires, you'll need to use the refresh token to request another access token using the same "jiveUrl" from the previous step. This method must be called authenticate! To authenticate a user using flask_jwt, you must send a POST request to /auth with the user's credentials. OAuth2 integration is easily accomplished. Configure the Firebase Authentication user inferface. 0 specification does not go into great detail about token formats “Access tokens can have different formats, structures, and methods of utilization (e. Save the token somewhere safe as we will not be able to access it through the dashboard again. Swaggers allows you to expose custom vendor extensions and you can use them in Flask-RESTPlus with for retrieving an authorization token for testing api. 0 focuses on client developer simplicity while providing specific authorization flows for web applications, desktop applications, mobile phones, and living room devices. json file that you created to configure a client object in your application. The Authorization Server redirects to allow the user to authenticate. Auth needs to be pluggable. It should be straightforward to use a decorator to protect restricted pages. To verify the auth_token, we used the same SECRET_KEY used to encode a token. In this Flask tutorial, we will check how to get the username and the password from a HTTP request made to a Flask server with basic authentication. The focus of that article was to highlight the crux of authentication logic. How to check if the token is valid, using the JSON Web Key Set (JWKS) for your Auth0 account. These methods are discussed in the client token setup section. Token-Based Authentication With Flask We need to decode the auth token with every API request and verify its signature to be sure of the user’s authenticity. I'm currently integrating Kerberos authentication support into a custom Pulp client and have completely failed to find any good documentation on how to use the kerberos module. Authentication Examples¶. Antes video2brain: Learn how to quickly build, secure, and test a RESTful API using Python and Flask, the Python microframework. If you don't want to muck around with headers (or the 2 managers you need to create to achieve this in [code]urllib2[/code]), the excellent [code]requests[/code] library comes with support for all kinds of authentication schemes out of the box. Using Tokens to Securely Transmit Account Data. Firebase ships with its own email/password auth as well as OAuth2 integrations for Google, Facebook, Twitter and GitHub. JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. The team working on connect for JIRA / Confluence haven't done a lot with Python, besides a bit of work during innovation weeks. Our starting point is the Flask app here. For this exercise, we will make use of the SAP Cloud Connector. Python and Flask are used in all of the examples. JWT (app=None, authentication_handler=None, identity_handler=None) [source] ¶ auth_request_handler (callback) [source] ¶ Specifies the authentication response handler function. Save the token somewhere safe as we will not be able to access it through the. It's been a lot of fun learning what a REST API is and I really enjoyed learning how to implement a REST API from scratch. Please do not submit support inquiries through this survey. Token-Based Authentication With Flask We need to decode the auth token with every API request and verify its signature to be sure of the user's authenticity. It is designed to make getting started quick and easy, with the ability to scale up to complex applications. We'll authenticate by. If you haven't yet used Flask, please consult this getting started tutorial. The actual URL will be determined by flask. from flask import session # Put it in the session session['api_session_token'] = token # allow user into protected view return render_template("login. The authorization token will populate after you enter a description. Flask-Security is an opinionated Flask extension which adds basic security and authentication features to your Flask apps quickly and easily. The authentication listener should set this token directly in the TokenStorageInterface using its setToken() method. Take note of Authorization: 'Bearer ' + token. Try using this app with a different back-end. Flask-JWT-Extended supports refresh tokens out of the box. Flask-OIDC is an extension to Flask that allows you to add OpenID Connect based authentication to your website in a matter of minutes. JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. Unlike the Oauth issues that plague Flask developers, and unlike the 100% roll your own authentication developers, Flask-Login is one of the best ways to at least get you started with authentication. is_authenticated, User. One thing, in particular, is hacking together code to develop and deploy simple web apps for particular functions or utilities you may need in your business. js for Node. 使用Flask-Login实现token验证和超时失效的原理 1. From your Heroku dashboard, click the New button and select Create New App: Set your application name, or leave blank for a random one. This method registers resources from namespace for current instance of api. Extensions are a way by which developers can extend Flask; this goes with Flask's minimalist nature. just testing some jwts. Access tokens are credentials used to access protected resources. The accompanying flask-lastuser library implements the client side for the Flask microframework. Can you find this code on the server-side?. class flask_github. The actual URL will be determined by flask. There are some very important factors when choosing token based authentication for your application. My goal is to utilize LDAP authentication in unison with my Python/Flask app. from flask import session # Put it in the session session['api_session_token'] = token # allow user into protected view return render_template("login. What's the best way to pass OAuth V2 access token without using the Authorization header? Scenario: A company understands the benefits of OAuth 2 over Basic Authentication. It uses heavy-duty HMAC encryption to prevent people from guessing the information. Now that we have some amazing token-checking code written, all we need to do is write a server to actually issue these tokens. For what it's worth, I'm not a Python developer. Using the same secret you used to produce the JWT, you calculate your own version of the signature and compare. We covered the basics of it and I am sure you can take it from there. Token and you can take a look at them (or even add one) through the Django admin (auth token - tokens). By default the HTTP header name is Authentication-Token and the default query string parameter name is auth_token. JWT Authentication Welcome to the sixth installment to this multi-part tutorial series on full-stack web development using Vue. As said in the name of the authentication, the latter is basic and should be used for simple scenarios. Unlike Django, Flask doesn't tie project's to a database. check_token() to locate the user that owns the provided token. Authorization Grant. Installing and linking with our app. Flask-OIDC is an extension to Flask that allows you to add OpenID Connect based authentication to your website in a matter of minutes. Download ngrok. That system will then request authentication, usually in the form of a token. For more advanced and robust use cases, we should consider to use. I'm pretty sure you already saw this, but I'll leave this here anyway for people who has not: RESTful Authentication with Flask This one is the best article I've read covering the topic of REST, auth and Flask. OAuth is the preferred authentication mechanism for the Platform API due to the ability to granularly grant and revoke access to some or. auth-scheme = token auth-param = token "=" ( token | quoted-string ) The 401 (Unauthorized) response message is used by an origin server to challenge the authorization of a user agent. It has been 6 months since I started this project named as Flask-OAuthlib, which is a successor of Flask-OAuthProvider and Flask-OAuth. Authentication tokens are generated using. JWT Authentication with Python and Flask In our blog post about HTTP Authentication , we promised we would next cover JSON Web Tokens aka JWT based authentication. We use cookies for various purposes including analytics. Also, url handler to check request. From your Heroku dashboard, click the New button and select Create New App: Set your application name, or leave blank for a random one. I’m currently integrating Kerberos authentication support into a custom Pulp client and have completely failed to find any good documentation on how to use the kerberos module. Read How Sustainable. Authlib is built from low level of specifications to high level of framework integrations. I hope this article provided valuable insight into managing REST API authorizations in Flask. JSON web token authentication with Flask and Angularjs JSON web tokens (JWT) are a mechanism in which a token is used instead of a username/password to authenticate API users. The name “Bearer authentication” can be understood as “give access to the bearer of this token. Setting up and configuring a project is often one of the most difficult tasks when developing on the full-stack, as you only do it a handful of times each year (think about it!). DATABASE: Suppose you have multiple projects that you’re working on and want to separate the results. You'll use the OneLogin SAML Test (IdP w/ attr) (Identity Provider with attributes) app connector to build an application connector for your app. The built-in Flask integrations for OAuth 1. Three Legged OAuth with Flask¶ This type of authorization is used for web login with a server-side application. It can be very satisfying to build an application “the hard way”, using few conveniences. html", form=form) Now you can check the protected views using the @require_api_token wrapper, like this. Flask is a lightweight WSGI web application framework. Like OAuth access tokens, JWT tokens should be passed in the Authorization header:. This token can be used in subsequent requests to protected resources. So we wrote a detailed blog post on The Concepts of JWT explaining how the technology works behind the scene. The general pattern for this is to put the object on there on first usage and then to remove it on a teardown. Installing Modules. The OAuth2 authentication mechanism is based on the following elements: A resource to obtain temporary tokens based on the user credentials. Firebase ships with its own email/password auth as well as OAuth2 integrations for Google, Facebook, Twitter and GitHub. While using a Basic Authentication I don't have any issue getting data from my endpoints. Flask-Stateless-Auth assists with stateless authentication in case a Flask developer decides to: Authenticate statelessly without the use of sessions. This guide shows example code for a web service that connects to a reddit account. You can view the code from the flask-jwt-auth repository. The tokens column stores the access and refresh tokens JSON, dumped as string. This tutorial uses billable components of Google Cloud Platform (GCP. Earlier this week, Nintendo announced that Ori and the Blind Forest is coming to the Switch later this year. My idea with this prototype is to build one mobile application (with Ionic) and validate one TOTP token in a server (in this case a Python/Flask application). Use Python and Flask to build amazing web applications, just the way you want them! Learn how to use forms, authentication, and authorization control through extensions, and provide a robust, safe web experience for the client; Free yourself from the SQL vs NoSQL paradigm and use the technology that best fits your needs. Unlike Django, Flask doesn't tie project's to a database. When you return to the CLI, you’ll paste in your token and it will get added to ~/. 1 Authentication June 2014 spaces, each with its own authentication scheme and/or authorization database. Testing is an essential part of software developmnet process. We will not follow up directly on feedback submitted. For this exercise, we will make use of the SAP Cloud Connector. First, check Google’s documentation for how to revoke access via OAuth2. Token's are more secure because they can contain a scope ( Access Level) and an Expiry. The following are code examples for showing how to use flask. To make the authentication flow secure when using session storage, it is required that server-side sessions are used instead of the default Flask cookie based. Use Okta as your authorization server to store and manage your user accounts in a simple, straightforward way; If you’d like to skip the tutorial and just check out the fully built project, you can go view it on GitHub. Contents1 Creating User Model2 Hashing Passwords3 Integrating Flask-Login4 Restricting Access to Views5 Creating Login Form6 Logging In Users7 Logging Out Users8 The Final Touch Authentication is one of most critical and important aspect of a web application. If you haven’t yet used Flask, please consult this getting started tutorial. Three Legged OAuth with Flask¶ This type of authorization is used for web login with a server-side application. Imagine for instance this code to get the current user:. For a simpler use case, see the script app quick start guide. It will register views for these resource and expose the resources using the links described in the schemas of these resources. Updates: 08/04/2017: Refactored route handler for the PyBites Challenge. With this app, we will make an API call to Zoom’s GET users/me endpoint to retrieve a user’s information after the user authorizes us to do so. There's no rules saying a Flask app has to connect to a database. Learn how to set up and get started with the Microsoft OneDrive integration for your next web application. Eve supports several authentication schemes: Basic Authentication, Token Authentication, HMAC Authentication. Helper methods are also provided interacting with GitHub API. 0 authorization. The first thing to do is create a flask object and handle the home page url. What's the best way to pass OAuth V2 access token without using the Authorization header? Scenario: A company understands the benefits of OAuth 2 over Basic Authentication. I'm currently integrating Kerberos authentication support into a custom Pulp client and have completely failed to find any good documentation on how to use the kerberos module. Read also chapter 4. Explore token-based authentication and find out how to store passwords securely in your database. Flask-Admin provides the examples of authentication with Flask-Login and Flask-Security. Unlike the Oauth issues that plague Flask developers, and unlike the 100% roll your own authentication developers, Flask-Login is one of the best ways to at least get you started with authentication. Flask-Login, unlike the aforementioned solutions, is an abstract authentication framework. To provide secure tokens in reset-password emails. Flask HTTP Auth will handle the authentication process for us. Simply check for a valid token in the Authorization header, check out the introduction [4]. For example, to authorize as demo / [email protected] the client would send. Authentication and session management includes all aspects of handling user authentication and managing active sessions. I have been using JWT[1] since it's initial push as a mainstream authentication method. To use OAuth1 authorization in requests, you need to specify the Access Token and Token Secret (access token secret) values. Objectives. Authorization Server¶ The Authorization Server provides several endpoints for authorization, issuing tokens, refreshing tokens and revoking tokens. I have configured to have ldap authentication on some boxes, but we also use local accounts for other tasks. Final words. I created a sample Flask application that shows how to create HTTP API with authentication provided by JSON Web Tokens. We need to extract the unique identifier from the passed token and add it to the database of revoked tokens. JSON web token authentication with Flask and Angularjs JSON web tokens (JWT) are a mechanism in which a token is used instead of a username/password to authenticate API users. This post will give you a basic tutorial of the Flask-Login mechanism for token based authentication. Miguel, Thanks for putting together this awesome tutorial! As far as I can tell, this app is only using Twitter for authentication. Flask-Login is a Flask extension that provides a framework for handling user authentication.