creating messages library, will be encoding/decoding via encoding/JSON for now

client/clientcmd/commonlib.go

@@ -1,6 +1,8 @@
 package clientcmd
 
 import (
+	"bufio"
+	"encoding/json"
 	"fmt"
 	"net"
 	"os"
@@ -8,6 +10,7 @@ import (
 	"strconv"
 
 	clientconfig "github.com/deranjer/gvc/client/clientconfig"
+	"github.com/deranjer/gvc/messages"
 )
 
 // ConfigPath is the global path to the config that is injected from the main client package.
@@ -76,8 +79,24 @@ func ConnectToServer(serverName string, branchName string, conf *clientconfig.Gv
 			if err != nil {
 				return nil, fmt.Errorf("error connecting to %s", connectionString)
 			}
-			fmt.Println("Connection started on: ", connectionString)
-			return &conn, nil
+			fmt.Println("Attempting connection on: ", connectionString)
+			decoder := json.NewDecoder(conn)
+			newMessage := messages.Cmd{}
+			for { // Doing our 'handshake'
+
+				message, err := bufio.NewReader(conn).ReadString('\n')
+				if err != nil {
+					return nil, fmt.Errorf("error reading from connection: %s", err)
+				}
+				fmt.Printf("Message from server: %s", message)
+				switch message {
+				case "Connected\n":
+					fmt.Println("Server recognized client")
+					return &conn, nil
+				default:
+					return nil, fmt.Errorf("unexpected response from server: ", message)
+				}
+			}
 		}
 	}
 	return nil, fmt.Errorf("unable to find server name in config")