How to set .topLevelAwait: true?

[Yak]

Hi, I am super new to Airtable scripts and I am stuck with trying to fix this error. It looks like I need to add the topLevelAwait module somewhere, but not sure where.

So far what I did was to install the Hello-World app in my localhost and then replaced the contents of index.js with the contents of the [YouTube Example Script](https://airtable.com/marketplace/scraGQUFvORtvmHC5/import-youtube-analytics) since it does similar things to what I need and I would like to learn from it.

The issue is that when I do a block release I am getting:

ModuleParseError: Module parse failed: The top-level-await experiment is not enabled (set experiments.topLevelAwait: true to enabled it)
    File was processed with these loaders:
     * ../../../../usr/local/lib/node_modules/@airtable/blocks-cli/node_modules/babel-loader/lib/index.js
    You may need an additional loader to handle the result of these loaders.

Any help will be appreciated,
Thanks in advance!

[pipecork]

Running into the same problem. I can’t find anything else on topLevelAwait that’s explicitly related to Airtable, so must be a package that changed recently.

[kuovonne]

Welcome to the Airtable community!

Are you creating a script or a custom app?

It looks like you are trying to create a custom app. However, if you are new to scripting, creating a custom app might be a really big leap.

[Yak]

Yak:

Airtable

It is my understanding it is just a script not an app. I need to create a similar behavior to the script in the link.

Thanks!

[Justin_Barrett · Accepted solution]

What you’ve linked is a script, but the error and other info you shared in your original post are related to custom apps. In short, you followed the instructions for creating a custom app, not installing a script.

To use the script that you found, just click the “Add Script” button on that page you linked. It’ll ask you for a base where you want it added, and it will automatically add the Scripting app and insert the code into it.

[Yak]

you are totally right, that was the issue! thanks for pointing that out!

[pipecork]

Cool! So for those of us who are building an app, has anyone encountered this and discovered a way to enable topLevelAwait?

[Justin_Barrett]

Sorry, but I haven’t had the time to work on custom apps for a while, and I haven’t even heard of this top-level-await feature. After a quick search, it turns out that it’s not Airtable-specific. I’ll let this page explain further:

v8.dev

Top-level await · V8

Top-level `await` is coming to JavaScript modules! You’ll soon be able to use `await` without needing to be in an async function.

If you want to go beyond that, my gut says that your favorite search engine should turn up enough info.

[pipecork]

I’m familiar with the feature top-level-await, its usage, and its caveats! I was just hoping someone else here had tried it specifically with Airtable apps. I guess the answer is no. Thank you.

[Justin_Barrett]

pipecork:

I was just hoping someone else here had tried it specifically with Airtable apps. I guess the answer is no.

It’s only been two days since the initial post. I’d give it a bit more time before assuming that nobody here has used top-level-await with a custom Airtable app. (That said, this post will auto-close in three days because an earlier comment was marked as the solution, so it might be worth starting a new thread on this topic to keep the discussion going.)