# MQTT Hub/Gateway

**URL:** <https://community.homey.app/t/mqtt-hub-gateway/6766>\
**Category:** Apps\
**Created:** [January 14, 2019, 6:59pm UTC](https://community.homey.app/t/mqtt-hub-gateway/6766 "2019-01-14T18:59:50Z")\
**Posts on this page:** 1\
**Showing post:** 349

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**Author:** ![RobertP](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertp/32/3820_2.png) [@RobertP](https://community.homey.app/u/RobertP)\
**Post date:** [February 17, 2019, 12:10pm UTC](https://community.homey.app/t/mqtt-hub-gateway/6766/349 "2019-02-17T12:10:52Z")

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Hello HarriedeGroot,

I have started working on an application that runs anywhere, doesn’t rely on third party application and where you can create your logic in a flow manner, but kind of a mind map (like Visio flow chart with multiple triggers and multiple outputs).  
The application is MQTT broker and client. It successfully receives MQTT messages from Homey. But how can I ask your app (with an MQTT message) to send all states (e.g. to get all devices with properties and states)?

Also, is there a way to get the available devices with states as a message (json object as payload with all info per device)?

- Robert

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