Create a REST service with OSB 12c.

To create a rest service with OSB 12c please use below steps:

1>Create an OSB application

2>Create OSB project

3>Create REST adapter in proxy service pane

Please verify that Full path will be http://host-port/proxy-uri/relative-path

Add method name and map the  REST method with it for e.g here method name is getEmpDetails and HTTP verb/method GET is mapped with it.

After completing this adapter looks like

Now drop a pipeline and name it.

Configure it with previously created REST adapter and uncheck expose as proxy service option

And after finishing link them together

Deploy the service and test it with SOAP-ui

Hope this helps you.