Who left his primitive tribe and went to Europe, then wrote a book about it?

I was sure the book was edited/sponsored/published by Herman Hesse, but can’t find it through him, so I must have gotten it wrong. So here’s the story, and let’s see if it rings any bells.

In the 18th c or thereabouts, a local tribesman from Indonesia (?) went with the white people to Amsterdam (?), presumably through the East India Trading Co routes. He was NOT a slave, though he did have to work as a servant when he got to Europe. But he was basically an explorer, and when he got back home, wrote a book of this backward journey, and his impressions of the technologically advanced West.

I am not sure if it was Indonesia, Amsterdam or even the 18th c, but this is what I seemed to remember. And it probably isn’t Hesse who helped him write the book. I also tried Mann, but it wasn’t him either.

Does any of this ring a bell? Could be a Papuan guy going to Paris or something.