send a binary message to a tcp server in go

To send a binary message to a TCP server in Go, you can follow these steps:

1. Open a TCP connection to the server using the net package's Dial function.

   main.go
   conn, err := net.Dial("tcp", "example.com:8080")
   if err != nil {
       // handle error
   }
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2. Convert your message to binary form using the encoding/binary package.

   main.go
   messageId := uint16(42)
   messageData := "Hello, server!"
   messageLength := uint32(len(messageData))
   message := new(bytes.Buffer)
   binary.Write(message, binary.LittleEndian, messageId)
   binary.Write(message, binary.LittleEndian, messageLength)
   binary.Write(message, binary.LittleEndian, []byte(messageData))
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3. Send the binary message to the server using the conn object's Write method.

   main.go
   _, err = conn.Write(message.Bytes())
   if err != nil {
       // handle error
   }
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4. Read the response from the server using the conn object's Read method.

   main.go
   response := make([]byte, 1024)
   numBytes, err := conn.Read(response)
   if err != nil {
       // handle error
   }
   fmt.Println(string(response[:numBytes]))
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5. Close the TCP connection using the conn object's Close method.

   main.go
   conn.Close()
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