3c4d69ea84
1. Convert CalendarFetcher from legacy constructor function pattern to ES6 class (which simplifies future migration from CommonJS to ES modules). 2. Implement targeted HTTP error handling with smart retry strategies for common calendar feed issues: - 401/403: Extended retry delay (5× interval, min 30 min) - 429: Retry-After header parsing with 15 min fallback - 5xx: Exponential backoff (2^count, max 3 retries) - 4xx: Extended retry (2× interval, min 15 min) - Add serverErrorCount tracking for exponential backoff - Error messages now include specific HTTP status codes and calculated retry delays for better debugging and user feedback Previously, CalendarFetcher did not respond appropriately to HTTP errors, continuing to hammer endpoints without backoff, potentially overloading servers and triggering rate limits. This refactoring implements respectful retry strategies that adapt to server responses and reduce unnecessary load. Maybe we could later centralize the HTTP error handling and use it for weather and newsfeed as well. The PR was inspired by having worked on the calendar fetcher for MMM-CalendarExt2, where there was already better error handling.
MagicMirror² is an open source modular smart mirror platform. With a growing list of installable modules, the MagicMirror² allows you to convert your hallway or bathroom mirror into your personal assistant. MagicMirror² is built by the creator of the original MagicMirror with the incredible help of a growing community of contributors.
MagicMirror² focuses on a modular plugin system and uses Electron as an application wrapper. So no more web server or browser installs necessary!
Documentation
For the full documentation including installation instructions, please visit our dedicated documentation website: https://docs.magicmirror.builders.
Links
- Website: https://magicmirror.builders
- Documentation: https://docs.magicmirror.builders
- Forum: https://forum.magicmirror.builders
- Technical discussions: https://forum.magicmirror.builders/category/11/core-system
- Discord: https://discord.gg/J5BAtvx
- Blog: https://michaelteeuw.nl/tagged/magicmirror
- Donations: https://magicmirror.builders/#donate
Contributing Guidelines
Contributions of all kinds are welcome, not only in the form of code but also with regards to
- bug reports
- documentation
- translations
For the full contribution guidelines, check out: https://docs.magicmirror.builders/about/contributing.html
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MagicMirror² is Open Source and free. That doesn't mean we don't need any money.
Please consider a donation to help us cover the ongoing costs like webservers and email services. If we receive enough donations we might even be able to free up some working hours and spend some extra time improving the MagicMirror² core.
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