In my code I am very often using HttpEntity alongside ResponseEntity in a following way:
HttpEntity<?> request = new HttpEntity<String>(myObject, headers);
ResponseEntity<String> response = restTemplate.exchange("someurl", HttpMethod.POST, request, String.class);
and then
response.getBody()
I repeat this code all the time, I was wondering if it is possible to create a generic method that would allow me to get response.body() when I supply it with object I want to send, an url, and a HttpMethod type. The response body most of the time will be a string, but can be an object.
You can use below code, here the response body and request body are made generic:
public <T, R> T yourMethodName(R requestBody,
MultiValueMap<String, String> headers,
String url,
HttpMethod type,
Class<T> clazz) {
HttpEntity<?> request = new HttpEntity<String>(requestBody, headers);
//You have to create restemplate Obj somewhere
ResponseEntity<T> response = restTemplate.exchange(url, type, request, clazz);
return response.getBody();
}