> 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

# [SDK](https://dev.wix.com/docs/api/get-menu-content?url=https%3A%2F%2Fdev.wix.com%2Fdocs%2Fsdk&format=markdown.md)

## [Core Modules](https://dev.wix.com/docs/sdk/core-modules.md)


### [realtime](https://dev.wix.com/docs/sdk/core-modules/realtime.md)


#### [Realtime](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime.md)


##### [Publisher](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/publisher.md)


- [Introduction](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/publisher/introduction.md)

- [Setup](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/publisher/setup.md)

- [publish()](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/publisher/publish.md)


##### [Site](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site.md)


- [Introduction](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site/introduction.md)

- [Setup](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site/setup.md)

- [permissionsRouter](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site/permissions-router.md)

- [realtime_check_permission()](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site/realtime-check-permission.md)

###### [PermissionsRouter](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site/permissions-router.md)


- [Introduction](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site/permissions-router/introduction.md)

- [add()](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site/permissions-router/add.md)

- [check()](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site/permissions-router/check.md)

- [default()](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/site/permissions-router/default.md)



##### [Subscriber](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/subscriber.md)


- [Introduction](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/subscriber/introduction.md)

- [Setup](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/subscriber/setup.md)

- [subscribe()](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/subscriber/subscribe.md)

- [unsubscribe()](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/subscriber/unsubscribe.md)


- [Introduction](https://dev.wix.com/docs/sdk/core-modules/realtime/realtime/introduction.md)