# Readwise Authors - Readwise API (Highlights) ![rw-book-cover|256](https://readwise-assets.s3.amazonaws.com/static/images/article1.be68295a7e40.png) ## 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