I find the complaints that Linkedin hasn't open sourced their REST client to be a little silly. I'm in a similar situation - PHP needs to send commands into Kafka but PHP kafka libs aren't great (or maybe there are and my PHP guys don't want to use them).

So I wrote a little Thrift endpoint (in Scala) which receives messages and writes to kafka. It's under 100 lines of code. Probably another couple of hundred lines for the PHP version of the thrift client.

Are we really complaining that Linkedin hasn't open sourced their 200 loc rest client?