# MQTT in Node Configuration

**URL:** <https://discourse.nodered.org/t/mqtt-in-node-configuration/44734>\
**Category:** General\
**Created:** [26 April 2021 09:16 UTC](https://discourse.nodered.org/t/mqtt-in-node-configuration/44734 "2021-04-26T09:16:18Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![edwardr](https://avatars.discourse-cdn.com/v4/letter/e/e0b2c6/32.png) [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Post date:** [26 April 2021 09:16 UTC](https://discourse.nodered.org/t/mqtt-in-node-configuration/44734/1 "2021-04-26T09:16:19Z")

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Hello Folks,

I am trying to reduce costs using my AWS MQTT broker with Node Red.

One of the ways I am hoping to do this is by creating a function filter that only posts a payload if its different to the previous message?

Would this be done in the function node or is there a more embedded solution built into the MQTT nodes itself?

Thank you,

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**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [26 April 2021 09:27 UTC](https://discourse.nodered.org/t/mqtt-in-node-configuration/44734/2 "2021-04-26T09:27:44Z")

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Yes - the RBE (Report By Exception) node does exactly this.

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**Author:** ![edwardr](https://avatars.discourse-cdn.com/v4/letter/e/e0b2c6/32.png) [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Post date:** [26 April 2021 16:54 UTC](https://discourse.nodered.org/t/mqtt-in-node-configuration/44734/3 "2021-04-26T16:54:51Z")

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That great thank you, is there also a way to delay messages by 10 seconds each time one is submitted?

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**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [26 April 2021 18:01 UTC](https://discourse.nodered.org/t/mqtt-in-node-configuration/44734/4 "2021-04-26T18:01:24Z")

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How about the delay node ?

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**Author:** ![edwardr](https://avatars.discourse-cdn.com/v4/letter/e/e0b2c6/32.png) [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Post date:** [27 April 2021 15:25 UTC](https://discourse.nodered.org/t/mqtt-in-node-configuration/44734/5 "2021-04-27T15:25:56Z")

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> [@edwardr](#):
>
> Thank you,

Thank you! Solved my problem 🙂

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [11 May 2021 15:26 UTC](https://discourse.nodered.org/t/mqtt-in-node-configuration/44734/6 "2021-05-11T15:26:54Z")

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