add dockerizing support

Dockerfile

@@ -0,0 +1,18 @@
+FROM golang:1.10.4
+
+RUN mkdir -p $GOPATH/src/github.com/zkrhm/imd-socialnetwork
+WORKDIR $GOPATH/src/github.com/zkrhm/imd-socialnetwork/
+
+COPY . .
+COPY Gopkg.toml Gopkg.lock ./
+
+RUN apt-get install curl
+RUN curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+
+RUN dep ensure -vendor-only
+RUN go install
+
+ENTRYPOINT [ "imd-socialnetwork" ]
+
+EXPOSE 8000
+

Gopkg.toml

@@ -62,8 +62,4 @@
 
 [[constraint]]
   name = "github.com/oleiade/reflections"
-  version = "1.0.0"
-
-[[constraint]]
-  name = "github.com/Benjamintf1/ExpandedUnmarshalledMatchers"
-  branch = "master"
+  version = "1.0.0"

app/handler.go

@@ -177,6 +177,8 @@ func (app *App) ListSubscribers(w http.ResponseWriter, r *http.Request){
 			Message : err.Error(),
 			Success: false,
 		})
+
+		return 
 	}
 
 	subscribers, err := app.DB.GetFriendList(User(reqObj.Email))
@@ -187,6 +189,8 @@ func (app *App) ListSubscribers(w http.ResponseWriter, r *http.Request){
 			Message: err.Error(),
 
 		})
+
+		return
 	}
 
 	helper.WriteReponse(w, SubscriberListResponse{

docker-compose.yml

@@ -0,0 +1,6 @@
+version: '3'
+services:
+  friend-mgt:
+    build: .
+    ports:
+     - "8000:8000"

helper/io.go

@@ -2,7 +2,6 @@ package helper
 
 import (
 	"encoding/json"
-	"fmt"
 	"io/ioutil"
 	"net/http"
 	"github.com/oleiade/reflections"
@@ -21,6 +20,7 @@ func GetRequest(r *http.Request, reqObj interface{}) error {
 
 func WriteReponse(w http.ResponseWriter, resObj interface{}) error {
 
+	w.Header().Set("Content-Type", "application/json")
 
 	hasField , err := reflections.HasField(resObj, "Code")
 	if err != nil {
@@ -50,7 +50,9 @@ func WriteReponse(w http.ResponseWriter, resObj interface{}) error {
 	if err != nil {
 		return err
 	}
-	w.Header().Set("Content-type", "application/json")
-	fmt.Fprintln(w, string(b))
+
+
+	w.Write(b)
+
 	return nil
 }

server.go

@@ -1,11 +1,24 @@
 package main
 
 import (
+	"fmt"
+	"strconv"
+	"os"
 	"github.com/zkrhm/imd-socialnetwork/db"
 	"github.com/zkrhm/imd-socialnetwork/app"
 )
 
 func main() {
+	port := os.Getenv("APP_PORT")
+
+	if port == "" {
+		port = ":8000"
+	}
+	iport, err := strconv.Atoi(port)
+	if err == nil {
+		port = fmt.Sprintf(":%d",iport)
+	}
+
 	app := app.NewApp()
 	db, err := db.NewCayleyStore()
 	if err != nil {
@@ -14,5 +27,5 @@ func main() {
 	app.UseDb(db)
 	app.Initialize()
 
-	app.Run("localhost:8000")
+	app.Run(port)
 }