flask-sqlalchemy
flask-login
flask-sqlalchemy | flask-login | |
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11 | 10 | |
4,152 | 3,492 | |
0.4% | - | |
7.9 | 7.5 | |
5 days ago | 5 days ago | |
Python | Python | |
BSD 3-clause "New" or "Revised" License | MIT License |
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flask-sqlalchemy
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Voting webapp saves votes locally, but not on server
You should probably use a database for this, using something like sqlite a single file "database" is probably the quickest way to get started, I recommend you use it with Flask-SQLAlchemy which makes working with the db easy as pie.
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How to build an API using Flask
Flask-SQLAlchemy: An extension that integrates SQLAlchemy with Flask. You can install it using pip install flask-sqlalchemy.
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How to dynamically generate graphics and PDFs using Python an jinja
flask-sqlalchemy: ORM for database access
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pagination in flask
I've made several runs at stripping the essential paginating functionality of flask-sqlalchemy for use with things like lists. That's where I'd start.
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Connect Flask APP to Two Already Existing Tables in two distinct databases
You can either use an ORM, which might be sqlalchemy, possibly wrapped up as a flask plugin https://flask-sqlalchemy.palletsprojects.com/ or more directly: https://www.sqlalchemy.org/
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Methods for dynamically loading test db data
You can learn more about this approach and see an example is this Flask-SQLAlchemy PR.
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Usage of Restful API + Database with Flask
Flask SQL Alchemy
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I built an Image Search Engine using OpenAI CLIP and Images from Wikimedia
I used for this project Flask and OpenAI CLIP. For the vector search I used approximate nearest neighbors provided by spotify/annoy. I used Flask-SQLAlchemy with GeoAlchemy2 to query GPS coordinates. The embedding was done using UMAP using the CLIP image vectors.
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I uninstalled an reinstalled sqalalchemy to get the latest version. Now my flask app won't work.
This appears to be this: https://github.com/pallets/flask-sqlalchemy/issues/910
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Problem with circular imports and app context
from sqlalchemy.engine.reflection import Inspector from sqlalchemy.schema import DropConstraint, DropTable, MetaData, Table from extensions import db # from dotmap import DotMap def try_add(object): """ Try to add the column 'object' to its table in the database and return it. """ try: db.session.add(object) db.session.commit() return object except Exception: db.session.rollback() raise def drop_all_cascade(): """(On a live db) drops all foreign key constraints before dropping all tables. Workaround for SQLAlchemy not doing DROP ## CASCADE for drop_all() (https://github.com/pallets/flask-sqlalchemy/issues/722) """ con = db.engine.connect() trans = con.begin() inspector = Inspector.from_engine(db.engine) # We need to re-create a minimal metadata with only the required things to # successfully emit drop constraints and tables commands for postgres # (based on the actual schema of the running instance) meta = MetaData() tables = [] all_fkeys = [] for table_name in inspector.get_table_names(): fkeys = [] for fkey in inspector.get_foreign_keys(table_name): if not fkey["name"]: continue fkeys.append(db.ForeignKeyConstraint((), (), name=fkey["name"])) tables.append(Table(table_name, meta, *fkeys)) all_fkeys.extend(fkeys) for fkey in all_fkeys: con.execute(DropConstraint(fkey)) for table in tables: con.execute(DropTable(table)) trans.commit()
flask-login
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Some questions about security when using flask
Are this modules good? https://github.com/flask-admin/flask-admin and https://github.com/maxcountryman/flask-login
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How to dynamically generate graphics and PDFs using Python an jinja
flask-login: Provides access to the current username
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[AF] Role-based authentication, alternatives to [Flask-User]?
I use Flask-login and implement role based authentication using decorators.
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Flask-Principal, Flask-Login, remember_me and identity_loaded
Flask-Login has a closed Issue #19 on GitHub but it actually doesn't answer my question :-/
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Tested flask-login based API successfully with Postman. But local React client doesn't use the Set-Cookie returned ?
You can try to look here https://github.com/maxcountryman/flask-login/blob/main/test_login.py
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How to implement user_loader callback in Flask-Login
The example code provided by flask-login does it this way, but this only works because it's pulling the User objects from a global hard-coded dictionary, not as in a real-world scenario like a database, where the DB must be checked and User objects created after the user enters their login credentials. And I can't seem to find any other example code that illustrates using a database with flask-login.
- python3-saml and flask-login
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What is the best authentication system for production flask apps?
What u/MikeDoesDo said. `flask-login` is rather built for the traditional approach to login and user management. It doesn't have a concept of auth tokens or JWT. It uses traditional cookies. The code that actually sets the cookie for the session isn't robust for a production app. Secure tokens have to be signed with robust keys. In addition to strong tokens, you also need measures that prevent brute-force attacks. Third party systems like auth0 bring all of this and more. Besides, with these systems you delegate the login process to the UI and the backend simply needs to verify incoming tokens. The crucial part is that you verify the token contents (audience and such) and the signature. For a production app with sensitive data and money behind it, don't settle for anything less than this.
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Is my user session cookie secure?
https://github.com/maxcountryman/flask-login/blob/c77ba6b12ef5e3045df054cf8bf2d61c4d83f54f/flask_login/mixins.py#L35-L39
What are some alternatives?
flask-sqlacodegen - :sake: Automatic model code generator for SQLAlchemy with Flask support
flask-wtf - Simple integration of Flask and WTForms, including CSRF, file upload and Recaptcha integration.
sqlalchemy-hana - SQLAlchemy Dialect for SAP HANA
Flask-AppBuilder - Simple and rapid application development framework, built on top of Flask. includes detailed security, auto CRUD generation for your models, google charts and much more. Demo (login with guest/welcome) - http://flaskappbuilder.pythonanywhere.com/
sqlalchemy-filters-plus - Lightweight library for providing filtering mechanism for your APIs using SQLAlchemy
python3-saml
geoalchemy2 - Geospatial extension to SQLAlchemy
xsession-manager - Save and restore windows for X11 desktop environment like Gnome, and many other features.
flask-file-upload - Easy file uploads for Flask.
PyJWT - JSON Web Token implementation in Python
graphql-sqlalchemy - Generate GraphQL Schemas from your SQLAlchemy models
django-user-sessions - Extend Django sessions with a foreign key back to the user, allowing enumerating all user's sessions.