send a binary json message to a tcp server in swift

To send a binary JSON message to a TCP server in Swift, you would need to perform the following steps:

1. Convert the JSON data to binary using the Codable protocol and the JSONEncoder class
2. Open a TCP socket to the server using the Socket class
3. Send the binary data over the socket using the write method

Here's an example implementation:

main.swift
import Foundation
import Socket

let serverAddress = "127.0.0.1"
let serverPort = 8080

struct Message: Codable {
    let id: Int
    let text: String
}

let message = Message(id: 1, text: "Hello, world!")
let encoder = JSONEncoder()
let jsonData = try! encoder.encode(message)

let socket = try! Socket.create()

try! socket.connect(to: serverAddress, port: Int32(serverPort))

try! socket.write(from: jsonData)
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In this example, we define a simple Message struct that we want to send to the server. We encode this struct as JSON using a JSONEncoder.

Then, we create a TCP socket using the Socket class and connect to the server.

Finally, we send the JSON data over the socket using the write method.

Note that we force-unwrap some of the method calls in this example for brevity. In practice, you'll want to handle errors and unwrap optional values more carefully.