move dump to get info

capture.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"net/http"
 	"strconv"
 	"sync"
 )
@@ -22,12 +23,9 @@ type CaptureList struct {
 }
 
 type Capture struct {
-	ID       int    `json:"id"`
-	Path     string `json:"path"`
-	Method   string `json:"method"`
-	Status   int    `json:"status"`
-	Request  string `json:"request"`
-	Response string `json:"response"`
+	ID  int
+	Req *http.Request
+	Res *http.Response
 }
 
 type CaptureMetadata struct {
@@ -37,12 +35,17 @@ type CaptureMetadata struct {
 	Status int    `json:"status"`
 }
 
+type CaptureDump struct {
+	Request  string `json:"request"`
+	Response string `json:"response"`
+}
+
 func (c *Capture) Metadata() CaptureMetadata {
 	return CaptureMetadata{
 		ID:     c.ID,
-		Path:   c.Path,
-		Method: c.Method,
-		Status: c.Status,
+		Path:   c.Req.URL.Path,
+		Method: c.Req.Method,
+		Status: c.Res.StatusCode,
 	}
 }
 

main.go

@@ -82,7 +82,7 @@ func NewDashboardItemInfoHandler(repo CaptureRepository) http.Handler {
 			return
 		}
 		rw.Header().Add("Content-Type", "application/json")
-		json.NewEncoder(rw).Encode(capture)
+		json.NewEncoder(rw).Encode(dump(capture))
 	})
 }
 
@@ -109,34 +109,26 @@ func NewPlugin(next http.Handler) http.Handler {
 
 func NewRecorder(repo CaptureRepository, next http.Handler) http.Handler {
 	return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
-		reqDump, err := dumpRequest(req)
-		if err != nil {
-			fmt.Printf("could not dump request: %v\n", err)
-		}
+
+		// save req body for later
+		var reqBody []byte
+		req.Body, reqBody = drain(req.Body)
 
 		rec := httptest.NewRecorder()
 
 		next.ServeHTTP(rec, req)
 
+		// respond
 		for k, v := range rec.HeaderMap {
 			rw.Header()[k] = v
 		}
 		rw.WriteHeader(rec.Code)
 		rw.Write(rec.Body.Bytes())
 
+		// record req and res
+		req.Body = ioutil.NopCloser(bytes.NewReader(reqBody))
 		res := rec.Result()
-		resDump, err := dumpResponse(res)
-		if err != nil {
-			fmt.Printf("could not dump response: %v\n", err)
-		}
-		capture := Capture{
-			Path:     req.URL.Path,
-			Method:   req.Method,
-			Status:   res.StatusCode,
-			Request:  string(reqDump),
-			Response: string(resDump),
-		}
-		repo.Insert(capture)
+		repo.Insert(Capture{Req: req, Res: res})
 		emitToDashboard(repo.FindAll())
 	})
 }
@@ -155,6 +147,18 @@ func NewProxyHandler(URL string) http.Handler {
 	})
 }
 
+func dump(c *Capture) CaptureDump {
+	reqDump, err := dumpRequest(c.Req)
+	if err != nil {
+		fmt.Printf("could not dump request: %v\n", err)
+	}
+	resDump, err := dumpResponse(c.Res)
+	if err != nil {
+		fmt.Printf("could not dump response: %v\n", err)
+	}
+	return CaptureDump{Request: string(reqDump), Response: string(resDump)}
+}
+
 func dumpRequest(req *http.Request) ([]byte, error) {
 	if req.Header.Get("Content-Encoding") == "gzip" {
 		var reqBody []byte