Office Add-in: Saving Custom Document Properties with Office js in Windows

I'm developing an add-in in macOS and I am able to read a custom document property:

return await this.api.run(async (context) => {
const properties = context.document.properties.customProperties;
properties.load('key,type,value');
await context.sync();

const roomID = properties.items.find(item => item.key === 'Webex_Teams_roomID');
return roomID ? roomID.value : null;
});


and write one:

return await this.api.run(async (context) => {
context.document.properties.customProperties.add('Webex_Teams_roomID', newRoomID);
await context.sync();
});


Where this.api is just window.word using office JS API. I used help from the following repo which is offered by Microsoft themselves, office-js-snippets.

office JS API

I'm not able to run my code in window's machine. After debugging the code, I learned that my code gets stuck at this point: await context.sync();.

await context.sync();

Office Versions in macOS: 16.14.1 (180613).

16.14.1 (180613)

Office Version in Windows: 16.0.4639.1000 32-bit

16.0.4639.1000 32-bit

After some digging, I found that I don't have access to context.document.properties.customProperties.items. It will display <permission denied> error. Could this be it?

context.document.properties.customProperties.items

<permission denied>

And I set the Permissions to ReadWriteDocument:
<Permissions>ReadWriteDocument</Permissions>
Nothing....

Permissions

ReadWriteDocument

<Permissions>ReadWriteDocument</Permissions>

2 Answers
2

My best guess is that this has to do something with how async/await (not)works on IE11 and that you will have to add correct polyfill to handle this.

Async/Await

items

context.document.properties.customProperties

It turned out with this MSI build and the API that I'm using, there are some incompatibility issues that result into causing the problems that I had ealier. they suggest I move to 365.

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