I'm making a multiple service calls to a service. Let's say i have to make 10 POST calls to a service. Each service require session_id cookie. If it's not provided, then the service will generate one and use it for all the service calls.
In my app i make several consecutive service calls. I can invoke those calls again in the "loop", but i need a different session_id for a single iteration.
In the code MyService component is making a service call. Filter of that service will generate session_id. But invoke() method might be invoked multiple times and I want filter to generate a different session_id for each invocation of invoke() method. Currently, session_id is getting generated once
@Component
class MyService {
@Autowired
private RestTemplate restTemplate;
/**
* T - is a request type
* R - is a response class type
*/
private <T,R> Optional<R> doPost(String url, T request, Class<R> responseType) {
return Optional.ofNullable(restTemplate.postForObject(url, request, responseType));
}
public void invoke() {
doPost("url1", someRequest1, SomeResponse1.class);
doPost("url2", someRequest2, SomeResponse2.class);
}
}
I can create a session_id in invoke() method and make sure that a different session_id is used to make these calls. All service calls in invoke() will have the same session_id and next invocation will have a different one. But i am not sure if this approach is a right way to achieve this goal.
What can you advise me to use?
session_id is generated by each client (if you test from other web browser you will see a different session_id), the only way that receive a different for each request is invalidating the session, althoung if your require a uuid by request use a listener
public class ProjectRequestListener implements ServletRequestListener {
@Override
public void requestInitialized(ServletRequestEvent requestEvent) {
requestEvent.getServletRequest().setAttribute("requestId", UUID.randomUUID());
}
@Override
public void requestDestroyed(ServletRequestEvent requestEvent) {
requestEvent.getServletRequest().setAttribute("requestId", null);
}
}
and add the listener to the project web.xml
<listener>
<listener-class>
com.project.server.ProjectRequestListener
</listener-class>
</listener>
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