Question

When using groovy’s http-builder with basic authentication the default behavior is to send an unauthenticated request first and resend the request with credentials after receiving a 401 in the first place.
Apache’s Httpclient offers preemptive authentication to send the credentials directly on the first request.
How can I use preemptive auth in Groovy’s http-builder? Any code examples are appreciated.

Answer 1

Based on a JIRA issue you can do something like that :

def http = new RESTClient('http://awesomeUrl/')

http.client.addRequestInterceptor(new HttpRequestInterceptor() {
    void process(HttpRequest httpRequest, HttpContext httpContext) {
        httpRequest.addHeader('Authorization', 'Basic ' + 'myUsername:myPassword'.bytes.encodeBase64().toString())
    }
})

def response = http.get(path: "aResource")

println response.data.text