# Readwise Authors - Readwise API (Highlights)

## Metadata
**Review**:: [readwise.io](https://readwise.io/bookreview/20238475)
**Source**:: #from/readwise
**Zettel**:: #zettel/fleeting
**Status**:: #x
**Authors**:: [[Readwise Authors]]
**Full Title**:: Readwise API
**Category**:: #articles #readwise/articles
**Category Icon**:: 📰
**URL**:: [readwise.io](https://readwise.io/api_deets)
**Host**:: [[readwise.io]]
**Highlighted**:: [[2022-10-31]]
**Created**:: [[2022-11-02]]
## Highlights
- Finally, we de-dupe highlights by `title`/`author`/`text`/`source_url`. So if you send a highlight with those 4 things the same (including nulls) then it will do nothing rather than create a "duplicate".
You can also use this endpoint to easily update a previously created highlight if a `highlight_url` was set. Pass the same url with a new text and the highlight's text will be updated. ^406965517