Invocation handler for Asynchronous Rest API Call

Question

I had worked on an application with SOAP web service where all the soap api calls will be triggered through one place using handler method invocation.

I've not seen the implementation in detail but I know how it was working.

Can we have one class where I can track all the REST apis before it hits and after i receive the response. I use spring. Except AOP, how to write handler method invocation for REST service?

What I'm asking is, instead of writing RestTemplate.exchange() in all the services wherever I make rest call, can I have a method invocation handler mechanism to invoke all the request at one place and to get the response asynchronously?

Answer 1

You can use a javax.servlet.Filter to intercept all the requests sent to the server and intercept all the responses from the server to the client. From javadoc:

A filter is an object that performs filtering tasks on either the request to a resource (a servlet or static content), or on the response from a resource, or both.

Examples that have been identified for this design are

1) Authentication Filters

2) Logging and Auditing Filters

3) Image conversion Filters

4) Data compression Filters

5) Encryption Filters

6) Tokenizing Filters

7) Filters that trigger resource access events

8) XSL/T filters

9) Mime-type chain Filter*