How to get a browser url for a Gmail thread from the threadId parameter in Gmail API

Question

Threads in Gmail API have a threadId that looks like an hex number: 1784d63938119544.

I want to build a url for the same thread that you can use in your browser, but there, the suffix looks different https://mail.google.com/mail/u/0/#inbox/**FMfcgGzsmDlfgdRfJFk** as if base64-encoded or similar.

Do you know how these are related?

Answer 1

not sure if you already figured this out, but seems like if you just put the thread id (the numerical looking one) into the link, it automatically redirects.