How to call the interface of the export function in nodered

General
1

Hello everyone.
I want to use the "export" function in the upper right corner of nodered, where is this function and how to call it?

2

Hi @lei1

you can open the export dialog using the code:

RED.actions.invoke("core:show-export-dialog")
3

Thanks, how to call this function in the function node, get the information of the node and print it to the console

4

A Function node cannot call this function.

The Function node runs in the runtime part of node-red. The export dialog is in the editor.

Can you describe in more detail what you are trying to do and where you want the code to run?

6

How to automatically collect all node information and print it to the console, (define a function node to do this instead of manually clicking the export button in the upper right corner)

7

The content of the export is the content of the flows.json file which you can find in you nodered folder under the name flows_yourhostname.json.
To get the content of this file into nodered you can use a file in node.
For example on a raspberry pi in the stock configuration if nodered was installed with the standard install script put /home/pi/.node-red/flows_raspberrypi.json in the file in node and you will get the whole content.

Johannes

9

For example, in a process, three different nodes are deployed to form a process, how to automatically obtain the json information of this process through the fourth node and print it to the console

10

There is no `easy way to do this. However here is a possible solution. First you would have to have to create a dummy file, maybe call it ‘previous.flow’. Next you would need an inject node set to run when ever you do a deploy. This would be connect to a file node that would read the current flow file.

Now you have access to the old flow and new flow, you would have to do a comparison of the two and send the differences to the console. I’d suggest you change the settings.js to save the flows in a form that is easier to read. See Settings file : Node-RED

11

Thank you so much

13

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