RESTful Java Web Services - Third Edition

The HTTP PUT method

The PUT method is used to update resources. To update a resource, we first need its representation in the client. Then, at the client level, we update the resource with the new value(s) that we want. Finally, we update the resource by using a PUT request together with the representation as its payload.

In this example, let's add a manager to the Sales department, which we created in the previous example.

Our original representation of the Sales department is as follows:

{"departmentId":40,"departmentName":"Sales","manager":"Tony    Greig" }

Let's update the manager for the Sales department; our representation is as follows:

{"departmentId":40,"departmentName":"Sales","manager":"Ki Gee"} 

We are now ready to connect to our ...