Sorry, I always thought Github kept a history of code, but it seems they don't, at least with a free account.

You are right and that code is not now in the repository. But maybe you can see a more complete example that can help you.

You can see the code

https://github.com/deesebc/PostExamples/tree/master/ApacheCamelExamples/ApacheCamelRestExample

And the explanation in my user history.