FeedMixer

FeedMixer is a lightweight Python WSGI web service that accepts lists of Atom and RSS feed URLs and returns a single combined feed. It exposes /atom, /rss, and /json endpoints and supports query parameters to control item counts and content verbosity.

Key Features

• Combine multiple Atom and RSS feeds into a single Atom, RSS 2.0, or JSON Feed output
• API endpoints: /atom, /rss, /json with query parameters for feeds (f), item limits (n), and full content preference (full)
• In-memory memoized parsing/cache to speed repeated requests
• Configurable via environment variables (log level, CORS enable, request timeout, cache size)
• Includes a WSGI application and a simple Falcon-based API module suitable for deployment with common WSGI servers
• Provides a Dockerfile for containerized deployments and an OpenAPI specification for the API

Use Cases

• Aggregate posts from multiple blogs or news sources into a single feed for a personal newsreader or "planet" site
• Produce a JSON Feed for browser-based or mobile applications that prefer JSON over XML
• Merge podcast or media feeds while preserving enclosures and link metadata for simple podcast aggregation

Limitations and Considerations

• Does not implement authorization, rate limiting, or built-in request throttling; a front-end reverse proxy or WSGI middleware is recommended for production deployments
• No per-feed refresh scheduling or persistent on-disk cache; caching is in-memory and process-local

FeedMixer is a minimal, pragmatic tool for combining feeds with simple configuration and deployment options. It is intended for lightweight personal or small-scale use and integrates easily into existing WSGI-based deployment flows.