Hi Oscar. Are you sure that your Input block is named INPUT?
Try adding some logging before your return statement:
console.log(env);
And then hit Run and look at the logs under the curl block.
I'm so sorry for that. I'm a noob! well do you think it would be posible to make these steps automatic. Because if Dust can read a sheet it should be able to generate the body and the dataset. That wouyld be incredible and prevent errors for noobs.
But how could Dust know the schema of the body of the http request you're making? In many cases, it's not just a flat list of properties that match your Input block.
It's true, i'm trying to make it work with the shitty nodes of notion in n8n. so this request would mean to make a template for every app which is impossible unless it's linked to every documentation of connected apps to dust.