Error on http://localhost:8080/apis/tutorial

[techwanker]

I get "content cannot be empty"

see postman screenshot attached

[techwanker]

Upon further research I find that I had to change from "text" to "json".

Then it worked

Also your tutorial assumes one knows what postman is, where to download it and install it. I had never heard of it. So far so good, this is an excellent tutorial.