UXP/Scripting Solution for Importing and Exporting XMP Metadata

[Michael38639541dcyl]

I know that there is a manual solution to do this via the File => File Info menu. See images below.

The export option saves an XMP file containing all of the file metadata. 

On a new file, you can import the saved file and select different options about how to treat existing data and what is contained in the file. 

I would like to create a script that performs these actions in a controlled and repeatable way for users.

I am having trouble identifying the relevant UXP objects that would allow me to do this. Has anyone had success with this sort of import and export behavior?

[John D Herzog]

It looks like document.metadataPreference.

[Michael38639541dcyl]

Thanks!

I was looking at this object independently and saw a save option, but wasn't sure whether this was the same action as exporting via the GUI. 

I was able to use the document.metadataPreference.save option to save to an XMP file. I do not see a method on this object for importing, though. 

Curious if other folks have found a way to do this.

[John D Herzog · Accepted solution]

document.metadataPreference.replace() or document.metadataPreference.append().

[Michael38639541dcyl]

Just found the same thing independently. Thanks for the confirmation!

[ashwin_0502]

How to register custome namespace and show fileInfo panel ?
I have use metadataPreferences

 const getXmpData = () => {

    var doc = app.activeDocument;

    var xmpStr = doc.metadataPreferences.metadata;

    if (!xmpStr || xmpStr.length === 0) {

      console.log("No metadata found.");

      return;

    }

    var xmp = new XMPMeta(xmpStr);

    var customNS = "http://your.custom.namespace/";

    var prefix = "fileInfo";

    XMPMeta.registerNamespace(customNS, prefix);

    var prop = xmp.getProperty(customNS, "rawData");

    if (prop) {

      console.log("Custom metadata:\n" + prop.value);

    } else {

      console.log("Custom metadata not found.");

    }

  };
indesign uxp there more confusion what I have use xmpFIle is work when i external link and localFileSystem use then show fileInfo panel newly inserted metadata 
but I want to add customdata with use activeDocument registernamespace and set,get so metaPreferences is perfect for my use case ?
I need help 
Thank you,

[ashwin_0502]

but this code is not working is there any method name mismatch ?

[leo.r]

but this code is not working is there any method name mismatch ?

By @ashwin_0502

Are you sure you're not running into the very same issue discussed in your initial post here:

https://forums.creativeclouddeveloper.com/t/is-there-any-manifest-permission-for-activedocument-file...

That is, that you're still trying to modify an open document using an external library?

(I'm not a UXP expert, so that's just my guess based on my understanding of the answer to your initial question).