I need to "function" node to send information only what i wrote in code and nothing else! How to block everything else that "flies" through it after the node "mqtt"? The code that I need to send! var button_corridor = flow.get('button_corridor') || ""; //Что бы отслеживалось состояние кнопки. if…

At beginning of code set msg = {}; That will set whole message to an empty object. This will affect msg.payload, so if you need it in your if statement, set var hold = msg; before you overwrite msg. Then use if(hold.payload = ... in your if statement.

Paul-Reed 30 October 2020 09:39 4

You could just create a new msg object...
See - Easy way of adding only mytimes to a msg as an example.
(Similar to what @E1cid suggested)

1 Like

Topic		Replies	Views
Blocking full message in function node Dashboard	5	2299	20 July 2020
Filter out data General	10	1588	18 May 2019
Beginner Question; Only pass payload if another value is true General	4	338	28 March 2021
Please if you can help with my flow General	11	225	31 July 2022
Tips on streamlining this function General	22	551	20 November 2020

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

How to block everything that is not needed?

Related Topics