Add a GraphQL API to Flask with Graphene
Graphene isn't just a way to expose your Flask data via GraphQL; it's a tool that lets you define your data's shape and relationships in a way that's in.
Flask Articles
48 articles
Run Flask in Production with Gunicorn and Gevent Workers
Flask apps are notoriously bad at handling concurrent requests out of the box. Here's a Flask app: from flask import Flask, request
Add Health and Readiness Endpoints to Flask for Load Balancers
Add Health and Readiness Endpoints to Flask for Load Balancers — practical guide covering flask setup, configuration, and troubleshooting with real-worl...
Senior Flask Interview Questions and Answers
Senior Flask Interview Questions and Answers — Flask is a micro web framework for Python. It's popular because it's lightweight and flexible, allow.
Speed Up Flask JSON Encoding with orjson
Speed Up Flask JSON Encoding with orjson — practical guide covering flask setup, configuration, and troubleshooting with real-world examples.
Secure Flask APIs with JWT Using Flask-JWT-Extended
Flask-JWT-Extended is a fantastic library for adding JSON Web Token JWT authentication to your Flask applications, but it's easy to get lost in the setu.
Deploy Flask Applications on Kubernetes
Deploy Flask Applications on Kubernetes. Kubernetes doesn't actually run your Flask app; it orchestrates containers that do. Let's see it in action
Configure Structured Logging in Flask for Production
Structured logging in Flask for production is less about what you log and more about how you format it to make it machine-readable and queryable.
Write WSGI Middleware for Flask Applications
WSGI middleware lets you wrap your Flask application in other WSGI applications, effectively adding pre- or post-processing steps to every request and r.
Organize Flask Microservices in a Monorepo
A monorepo for Flask microservices isn't just about putting code in one place; it's about treating your collection of small, independent services as a s.
Build Multi-Tenant Flask Apps with Per-Tenant Schemas
The most surprising thing about multi-tenant Flask apps with per-tenant schemas is that you can achieve true data isolation without spinning up entirely.
Add OAuth2 to Flask with Authlib
Add OAuth2 to Flask with Authlib — Authlib is a Python library that makes implementing OAuth 2.0 and OpenID Connect OIDC in Flask appli.
Generate Swagger Docs for Flask APIs with Flasgger
Flasgger lets you write Swagger documentation directly in your Flask application's code, turning your API endpoints into living, self-documenting entiti.
Instrument Flask Apps with OpenTelemetry Tracing
Instrument Flask Apps with OpenTelemetry Tracing — practical guide covering flask setup, configuration, and troubleshooting with real-world examples.
Paginate SQLAlchemy Query Results in Flask APIs
SQLAlchemy queries, when fetching large datasets, can quickly bog down your Flask API. Pagination is the standard solution, but it's not just about slic.
Profile Flask Application Performance with Werkzeug and py-spy
Werkzeug's debugger is your first line of defense when Flask applications misbehave, but for performance tuning, you need to look deeper.
Harden Flask Apps for Production: Security Checklist
Flask apps can be surprisingly insecure by default, and a single overlooked setting can expose your entire system to attack.
Rate-Limit Flask Endpoints with Flask-Limiter
Flask-Limiter lets you slap rate limits on your Flask endpoints, but it's not just about blocking requests; it's about controlling the flow and protecti.
How Flask Request Context Manages Per-Request State
The Flask request context is an invisible cloak that wraps your application's request handling, ensuring that each incoming HTTP request gets its own is.
Build REST APIs in Flask with Marshmallow Serialization
Flask's Marshmallow integration for REST APIs is less about building APIs and more about efficiently describing your data structures so the API can hand.
Secure Flask Against XSS, CSRF, and Injection Attacks
Flask applications are surprisingly vulnerable to XSS, CSRF, and injection attacks if you don't explicitly address them.
Store Flask Sessions in Redis for Scalable Multi-Server Auth
Store Flask Sessions in Redis for Scalable Multi-Server Auth — Flask sessions are usually stored in a cookie by default. This is fine for a single serve...
Decouple Flask App Logic with Blinker Signals
Decouple Flask App Logic with Blinker Signals — practical guide covering flask setup, configuration, and troubleshooting with real-world examples.
Implement Soft Delete in Flask with SQLAlchemy
Soft delete isn't just about marking a record as inactive; it's fundamentally about preserving historical data while maintaining the illusion of a clean.
Tune Flask-SQLAlchemy Connection Pooling for High Traffic
Flask-SQLAlchemy's connection pooling is a hidden gem that, when tuned correctly, can transform your high-traffic application from a sluggish mess into .
Stream Large Responses from Flask with Generator Functions
Flask’s Response object is surprisingly flexible, and you can make it stream data without holding the entire response in memory by leveraging Python gen.
Test Flask Applications with pytest and Application Fixtures
Flask applications often feel like black boxes when you try to test them, but pytest’s application fixture makes them behave like any other Python objec.
Migrate a Flask API to FastAPI for Better Performance
FastAPI is often touted for its speed, but its real magic lies in how it leverages Python's type hints to provide both incredible performance and develo.
Deploy Flask Apps with Zero Downtime Using Blue-Green Releases
Blue-green deployments are a trick to deploy new versions of your application without any downtime, by keeping two identical production environments, on.
Set Up an Admin Interface in Flask with Flask-Admin
Set Up an Admin Interface in Flask with Flask-Admin — practical guide covering flask setup, configuration, and troubleshooting with real-world examples.
How Flask Application Context and g Object Work
The Flask application context is a hidden, yet crucial, mechanism that allows you to access global information about your application and its current re.
Structure Flask Apps with the Application Factory Pattern
The most surprising true thing about Flask's Application Factory pattern is that it doesn't actually create your Flask application; it creates a functio.
Write Async View Functions in Flask with Python 3
Flask can run asynchronous view functions, but it's not immediately obvious how to make it happen. Here's a simple Flask app with an async view function:
Add Audit Logging to Flask Apps for Security and Compliance
Flask audit logging is crucial for security and compliance, but most developers focus on what to log, not how to make it actionable and efficient.
Implement User Authentication in Flask with Flask-Login
Flask-Login is the de facto standard for handling user authentication in Flask applications, but its core mechanism works by loading a user object from .
Queue Background Jobs in Flask with RQ and Redis
RQ is a surprisingly simple Python library for queuing jobs and processing them in the background, and it’s built on top of Redis, which is basically a .
Organize Large Flask Apps with Blueprints
Organize Large Flask Apps with Blueprints — practical guide covering flask setup, configuration, and troubleshooting with real-world examples.
Cache Flask Responses in Redis with Flask-Caching
Flask-Caching lets you store responses to frequently requested URLs in Redis, so the next time a user hits that URL, Flask can grab the response directl.
Integrate Celery into Flask for Async Task Processing
Celery, the distributed task queue, doesn't actually run tasks; it orchestrates the scheduling and execution of tasks across one or more workers, which .
Manage Flask Configuration Across Development and Production
Flask configuration can be a surprisingly tricky beast to get right, especially when you need to manage vastly different settings for development and pr.
Configure CORS in Flask with Flask-CORS
Flask-CORS is the standard way to handle Cross-Origin Resource Sharing CORS in Flask applications, and it's surprisingly flexible once you understand ho.
Add Custom CLI Commands to Your Flask App with Click
Flask's built-in CLI is surprisingly powerful, but it's not always enough. You want to add your own custom commands, the kind that do more than just run.
Run Flask Database Migrations with Flask-Migrate and Alembic
Flask-Migrate is a Flask extension that wraps the powerful Alembic library, allowing you to manage database schema changes with ease.
Manage One Database Connection Per Request in Flask
Flask's built-in request context is your best friend for managing database connections, ensuring you have one, and only one, connection active for the d.
Containerize Flask Apps for Production with Docker and Gunicorn
Docker containers are not a silver bullet for isolating Python application dependencies. Let's see a Flask app running in production, not in some abstra.
Build Event-Driven Flask Apps with Signals and Queues
Build Event-Driven Flask Apps with Signals and Queues — practical guide covering flask setup, configuration, and troubleshooting with real-world examples.
Implement Feature Flags in Flask to Ship Without Risk
Feature flags let you deploy code to production that's not yet visible to users, allowing you to test new features in a live environment without impacti.
Handle File Uploads in Flask and Store Them in S3
Handle File Uploads in Flask and Store Them in S3 — practical guide covering flask setup, configuration, and troubleshooting with real-world examples.