# Page Not Found

The URL `graphlit-data-api/api-reference/content/metadata-filtering/filter-by-collections` does not exist.

You might be looking for one of these pages:
- [Metadata Filtering Strategies](https://docs.graphlit.dev/api-guides/use-cases/content/content-metadata-filtering-strategies.md)
- [Lifecycle States](https://docs.graphlit.dev/api-guides/use-cases/content/content-lifecycle-states.md)
- [Poll for Completion](https://docs.graphlit.dev/api-guides/use-cases/content/content-is-done-polling.md)
- [Metadata Structure by Content Type](https://docs.graphlit.dev/api-guides/use-cases/content/content-metadata-structure.md)
- [Understanding ContentType vs FileType](https://docs.graphlit.dev/api-guides/use-cases/content/content-type-vs-file-type-explained.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.graphlit.dev/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.graphlit.dev/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/api-guides/use-cases/content/content-metadata-filtering-strategies.md`)
- Use `Accept: text/markdown` header for content negotiation