(FME 2020.0) HTTP Caller header does not work when giving it a FME Attribute

Hey, When you are specifying a token in the headers, try something like this:You can insert your token value at @Value(_response_body)

Also make sure to inspect the value of the "apiKey" attribute just before it enters the HTTPCaller, making sure that it does indeed have the "bearer " prefix.

This is the approach I use and this works fine in FME 2020

Unfortunately neither of these seem to solve the problem. What I'm failing to understand is why it works when the "bearer <key>" are explicitly put into the header as opposed to defined as an attribute. (I have also tried putting Bearer into the attribute itself vs outside the attribute)

Hey, I ran into the same problem as you.

I had another endpoint that needs to run to get this token.

The way I did it to get that token into the header is to run a StringConcatenator first , then use it in the HTTPCaller as an attribute.


Hope this helps!

Here , response_body is my token that goes with the “Bearer XX” value in the Authorization header.