> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: Categories ## Article: Introduction ## Article Link: https://dev.wix.com/docs/velo/apis/wix-forum-v2/categories/introduction.md ## Article Content: --- title: Introduction --- # Introduction  
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  The Categories API allows a site visitor to get and query forum categories. Categories allow you to sort your forum posts into different groups. They give your readers a general idea of what your forum posts are about. To use the Categories API, import `{ categories }` from the `wix-forum.v2` module: ```javascript import { categories } from 'wix-forum.v2'; ```