How to make Rest API more scalable using spring mvc on increasing number of requests at same time?

Question

I have used spring mvc framework for implementing rest api using annotations like @RestController and @RequestMapping etc.

Does tomcat container can handle multiple requests on its own by dynamically increasing heap size of jvm of hosted server or does application developers needs to handle it . What should be the ideal way of handling multiple request of same get rest api like this .

Here is sample method signature :

@RequestMapping(value = "/domain.com/{sourceID}", method = RequestMethod.GET, produces = "application/json; charset=UTF-8")
public ResponseEntity<?> getCategory(@PathVariable("sourceID") final String sourceID) throws Exception {

Answer 1

Does tomcat container can handle multiple requests on its own by dynamically increasing heap size of jvm of hosted server or does application developers needs to handle it .

Tomcat container can easily handle multiple requests but not by increasing the heap size dynamically.

Literally the heap size cannot be changed once a jvm started. Heap size of tomcat can be set using -Xmn, -Xmx and -XX:PermSize if required to change it.

What should be the ideal way of handling multiple request of same get rest api like this.

This is a broader question and depends upon the project requirement. For general purpose application you can just run it as it is (leave the tomcat configuration as default).