Hello guys, i wanted to implement an "if "statement to execute the action once the button is pressed. By referring to my simple code below, other than using msg.payload or msg.topic , is there any other statement i can use to tell the program that the button has been pressed? I tried using " Button.…

Pressing the button will start the flow, so setting the msg.topic to (for example) "buttonpressed" in the button node, and feeding that into a function node, you can then use; if (msg.topic == "buttonpressed") { do something } If you are then using an if/else statement, you will probably need to g…

Hi. Thanks for the heads up. The thing is i am using OPC UA to obtain the data and thus my "msg.payload" & "msg.topic" are both occupied with existing data value. And that is why im seeking for other alternative term as to not overwrite the data in the msg.payload and topic.

[image] JackJackTan414: and thus my "msg.payload" & "msg.topic" are both occupied with existing data value if (msg.topic == "existingdata") { do something } else if (msg.topic == "buttonpressed") { do something different }

[image] JackJackTan414: my "msg.payload" & "msg.topic" are both occupied with existing data value I thought the message was coming from a ui-button.

Hi, sorry for the misunderstanding. The msg.topic contains "variable" values that is generated through the OPC-UA client node. And i would like it to display the data on the MySQL database only when i press the button on the dashboard. The second image shows the code im trying to implement in the f…

msg.topic happens to be a variable generated via the OPC UA-client node.

I would remove the button node from your flow, and use it to start a new 'stand alone' flow instead. The new flow would run when you press the button and retrieve the latest data from your database. So the new flow would comprise; Button node - to run the flow Function node - to format the query …

hi Paul. Ive tried to create another flow(with button,function and debug node) mainly just to trigger the process in another flow. for button,Ive set the payload to be delivered to be a string('yes') when button is pressed. Image 1 & 2 is the flow and the code respectively. this button on the dashb…

Is this a different question to what you initially asked? I thought that you wanted to push a button, which would retrieve the last value saved to Maria.db? I'm now confused what exactly that you are trying to achieve.

Looks like Jack has opened a second thread with the same question [image] How to deliver variable value to different flow when ui-button is pressed General Good day Guys. The first 3 image represents that I am trying to initialise a global variable "a" to be 1 whenever i p…

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How can i mention my "ui-button" code in the function node when it is pressed?

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Topic		Replies	Views
How to deliver variable value to different flow when ui-button is pressed General function-node	7	996	14 July 2022
Accessing payload from ui switch or button Dashboard	11	2743	29 December 2019
Display number WHEN click on button Share Your Nodes function-node	11	1229	9 April 2022
Button node - passthrough? Dashboard	24	18862	1 December 2019
Create function node to send msg.payload.variableValue from existing msg.payload General function-node , mqtt , opcua	8	1798	14 November 2022

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How can i mention my "ui-button" code in the function node when it is pressed?

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