Ratpack HTTP Proxy

Ratpack.groovy

import org.slf4j.Logger
import org.slf4j.LoggerFactory
import ratpack.handling.Context
import ratpack.handling.Handler
import ratpack.http.client.HttpClient
import ratpack.http.client.StreamedResponse
import ratpack.http.MutableHeaders
import ratpack.http.client.RequestSpec

import static ratpack.groovy.Groovy.ratpack

final Logger log = LoggerFactory.getLogger(Ratpack.class);

class ApiKeyHandler implements Handler {
    @Override
    void handle(Context context) throws Exception {
        if (//pseudo code to check redis for the keys  )
        {
            
        }
        context.next()
    }
}


class OauthTokenHandler implements Handler {

    @Override
    void handle(Context context) throws Exception {
        if (//pseudo code to Oauth token use offline )
        {
            
        }
        context.next()
    }
}

ratpack {
    handlers {
        handler new ApiKeyHandler()
        handler new OauthTokenHandler()

        handler { HttpClient httpClient ->
            log.info("Proxy to: $request.rawUri")
            httpClient.streamRequest(new URI(request.rawUri)) { RequestSpec spec ->
                spec.headers.copy(request.headers)
            } then { StreamedResponse responseStream ->
                responseStream.send(response) { MutableHeaders headers ->
                    def server = 'APIP'
                    headers.set('Server', server)
                }
            }
        }
    }
}