通过Clojure / Java中的自定义协议隧道HTTP

Question

I want to tunnel a HTTP request stream over a custom transport protocol. Are there any Clojure or, as a fallback, Java HTTP clients that'd let me access the underlying request streams or lets me filter the serialised requests and responses?

I know clj-http wraps Apache HttpComponents, but doesn't seem to provide a lot of hooks into HC internals, and I've looked into HC itself, but have a hard time navigating the jungle of factories, interfaces and managers.

Answer 1

clj-http includes the ability to read to and write from an input stream

(client/get "http://site.com/bigrequest.html" {:as :stream})

(client/post "http://site.com/resources"
         {:body (clojure.java.io/input-stream "/tmp/foo") :length 1000})

you can then wrap this stream in your transport of choice.

Answer 2

You can have request body as stream. For that you need to set the :body value to any object that implements InputStream . Check the function wrap-input-coercion at https://github.com/dakrone/clj-http/blob/master/src/clj_http/client.clj for more details.