Hi,
I had the same question some time ago. While I moved a bit further from a noob in JS and Airtable, i'm still a noob with all these API and auth methods. I found my old code, on which I spent a few days to create, and even received help here, now it's my turn. Code creates new records on another base, I fixed it a bit until it works, then substituted the key with the token , ~15 characters string to a ~80 chars. I can confirm that it works the same.