Make HTTPBuilder Follow 302 Redirects Initiated by an HTTP POST

gistfile1.groovy

/*
 * HTTPBuilder uses HttpClient and does not automatically follow HTTP 302 responses from a POST as per the HTTP spec. You can modify this
 * behavior by overriding updating the default behavior to follow regardless of initiating method.
 */
def http = new HTTPBuilder("http://UrlThatExpectsAPostAndReturnsA302.com")

http.client.setRedirectStrategy(new DefaultRedirectStrategy() {
  @Override
  boolean isRedirected(HttpRequest request, HttpResponse response, HttpContext context) {
    def redirected = super.isRedirected(request, response, context)
    return redirected || response.getStatusLine().getStatusCode() == 302
  }
})

def postBody = ['param':'value']

// Then you can do:
def html = http.request(POST) {
  uri.path = '/POST'
  send URLENC, postBody
}

Modified to call the super class method first rather than simply look at the status code.

Thanks. As of 4.2 (Apache HttpClient) there is a LaxRedirectStrategy class that allows redirects for POST requests in addition to GET and HEAD requests.

So, the above code can now simply be:

def http = new HTTPBuilder("http://UrlThatExpectsAPostAndReturnsA302.com")

http.client.setRedirectStrategy(new LaxRedirectStrategy())

def postBody = ['param':'value']

// Then you can do:
def html = http.request(POST) {
  uri.path = '/POST'
  send URLENC, postBody
}