WIP: Futures not working

src/main.rs

@@ -125,6 +125,7 @@ fn main() -> AnyhowResult<()> {
     let remote_addr = socket.remote_addr();
     info!("Got a request from: {:?}", remote_addr);
 
+
     let route_a = route_one.clone();
     let route_b = route_two.clone();
 
@@ -132,12 +133,15 @@ fn main() -> AnyhowResult<()> {
       match req.method() {
         &Method::OPTIONS => {
           // TODO: CORS should be hardcoded here, not wastefully proxied.
-          return hyper_reverse_proxy::call(remote_addr.ip(), &route_a, req);
+          return hyper_reverse_proxy::call(remote_addr.ip(), &route_a, req); // Return BoxFut
         },
         _ => {},
       }
 
+      let remote_addr2 = remote_addr.clone();
+
       if req.uri().path().eq("/speak") {
+
         info!("/speak");
 
         let (_parts, body) = req.into_parts();
@@ -152,24 +156,69 @@ fn main() -> AnyhowResult<()> {
 
       } else if req.uri().path().eq("/speak_spectrogram") {
         info!("/speak_spectrogram");
-        //let request : SpeakRequest = serde_json::from_str(&req.body().into()).unwrap();
-        //info!("Request: {:?}", request);
 
-        let (_parts, body) = req.into_parts();
+        let boxed = Box::new(req.into_body().concat2().map(move |b| { // Builds a BoxedFut to return
+          // Parse the request body. form_urlencoded::parse
+          // always succeeds, but in general parsing may
+          // fail (for example, an invalid post of json), so
+          // returning early with BadRequest may be
+          // necessary.
+          //
+          // Warning: this is a simplified use case. In
+          // principle names can appear multiple times in a
+          // form, and the values should be rolled up into a
+          // HashMap<String, Vec<String>>. However in this
+          // example the simpler approach is sufficient.
+          //let params = form_urlencoded::parse(b.as_ref()).into_owned().collect::<HashMap<String, String>>();
 
-        let body_bytes = body.concat2().wait().unwrap().into_bytes();
+          // Validate the request parameters, returning
+          // early if an invalid input is detected.
+          /*let name = if let Some(n) = params.get("name") {
+            n
+          } else {
+            return Response::builder()
+              .status(StatusCode::UNPROCESSABLE_ENTITY)
+              .body(MISSING.into())
+              .unwrap();
+          };
+          let number = if let Some(n) = params.get("number") {
+            if let Ok(v) = n.parse::<f64>() {
+              v
+            } else {
+              return Response::builder()
+                .status(StatusCode::UNPROCESSABLE_ENTITY)
+                .body(NOTNUMERIC.into())
+                .unwrap();
+            }
+          } else {
+            return Response::builder()
+              .status(StatusCode::UNPROCESSABLE_ENTITY)
+              .body(MISSING.into())
+              .unwrap();
+          };*/
 
-        let json_string = String::from_utf8(body_bytes.to_vec());
+          let name = "asdf";
+          let number = "asdf";
 
-        info!("Request String: {:?}", json_string);
 
-        let request: SpeakRequest = serde_json::from_slice(&body_bytes).unwrap();
+          // Render the response. This will often involve
+          // calls to a database or web service, which will
+          // require creating a new stream for the response
+          // body. Since those may fail, other error
+          // responses such as InternalServiceError may be
+          // needed here, too.
+          let body = format!("Hello {}, your number is {}", name, number);
+          Response::new(body.into())
 
-        print!("Request: {:?}", request);
+        }));
 
-        let new_req = Request::new(Body::empty());
+        Box::new(boxed.then( |b : Result<Response<Body>, Error> | {
+          let new_req = Request::new(Body::empty());
+          hyper_reverse_proxy::call(remote_addr2.ip(), "http://127.0.0.1:12345/speak_request", new_req)
+        }))
 
-        return hyper_reverse_proxy::call(remote_addr.ip(), &route_b, new_req)
+        //let new_req = Request::new(Body::empty());
+        //return hyper_reverse_proxy::call(remote_addr.ip(), &route_b, new_req)
 
       } else {
         debug_request(req)