What exactly is an HTTP Entity?

Question

Would someone please describe to me what exactly an HTTP entity is?

I am reading the HTTPClient documentation, but I do not really understand what t

Answer 1

HttpEntity is what you are going to pass in Request(with header) and what you are getting in Response. For Get Request we are passing simple String

 HttpHeaders headers = new HttpHeaders();
 headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
 HttpEntity entity = new HttpEntity(headers);

For Post We are going to pass complete Entity Class

public String createProducts(@RequestBody Product product) {
    HttpHeaders headers = new HttpHeaders();
    headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
    HttpEntity entity = new HttpEntity(product,headers);

    return restTemplate.exchange(
             "http://localhost:8080/products", HttpMethod.POST, entity, String.class
           ).getBody();
}