TCP client/server

.gitignore

@@ -44,3 +44,5 @@ example-json/example-json
 financialjson/financialjson
 statecsv2json/statecsv2json
 converter-main/converter-main
+tcpclient/tcpclient
+tcpserver/tcpserver

tcpclient/main.go

@@ -0,0 +1,25 @@
+package main
+
+import "fmt"
+import "io/ioutil"
+import "net"
+import "os"
+
+func main() {
+	addr := "localhost:9000"
+	if len(os.Args) == 2 {
+		addr = os.Args[1]
+	}
+	d, err := net.Dial("tcp", addr)
+	if err != nil {
+		panic(err)
+	}
+	defer d.Close()
+
+	bs, err := ioutil.ReadAll(d)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(string(bs))
+}

tcpserver/main.go

@@ -0,0 +1,23 @@
+package main
+
+import "fmt"
+import "io"
+import "net"
+import "time"
+
+func main() {
+	ln, err := net.Listen("tcp", ":9000")
+	if err != nil {
+		panic(err)
+	}
+	defer ln.Close()
+
+	for {
+		conn, err := ln.Accept()
+		if err != nil {
+			panic(err)
+		}
+		io.WriteString(conn, fmt.Sprint(time.Now()))
+		conn.Close()
+	}
+}