Duplicate of http request

Dashboard
1

Hi, I have do a function to list out the files from specific directory, and set a delete button besides the file name,

when user click the delete button, Node Red will delete the file and refresh the file list.

But the problem is , when I adjust the nodes and deploy the Node Red, and click the delete button, it will send 2 http request

below is my flow:
flows (1).json (7.8 KB)

2

So if I got you right, you don´t want that the http request is sent twice?
As an workaround you could use the delay node, to allow only 1 message per xxx milliseconds.

3

but the weird thing is,

when I first time configure the node and deploy it, it works well.

on seconds time deploy, it call http request 2 times,

on my third time deploy, it call http request 3 times,

and so on.. no idea what's wrong with my node :rofl: :rofl:

4

you are not removing the listener when the node is closed (re-deployed) so every time you deploy you are adding another listener... so you will get one more call every time.

5

Or remove the endpoint and send the file to delete in the message.

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[edit] Added the refresh of template and simulated file FS. Just replace the change nodes for FS nodes. Also some css for styling

6

it actually blow my mind as I thought event listener will be replaced by new listener upon node red re-deployed

thanks for sharing the information :pray:

7

thanks :+1: your solution are much simpler than mine

I will take some time to understand the concept