InfoReceiver (Spring Framework 5.2.12.RELEASE API)

All Known Subinterfaces:
XhrTransport
All Known Implementing Classes:
AbstractXhrTransport, JettyXhrTransport, RestTemplateXhrTransport, UndertowXhrTransport
```
public interface InfoReceiver
```
A component that can execute the SockJS "Info" request that needs to be performed before the SockJS session starts in order to check server endpoint capabilities such as whether the endpoint permits use of WebSocket.
Typically XhrTransport implementations are also implementations of this contract.
Since:
4.1
Author:
Rossen Stoyanchev
See Also:
AbstractXhrTransport

- Method Summary
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  String executeInfoRequest(URI infoUrl, HttpHeaders headers)
  Perform an HTTP request to the SockJS "Info" URL.

- Method Detail
  - executeInfoRequest
```
String executeInfoRequest(URI infoUrl,
                          @Nullable
                          HttpHeaders headers)
```
    Perform an HTTP request to the SockJS "Info" URL. and return the resulting JSON response content, or raise an exception.
    Note that as of 4.2 this method accepts a headers parameter.
    Parameters:
    infoUrl - the URL to obtain SockJS server information from
    headers - the headers to use for the request
    Returns:
    the body of the response