Package sockets

The sockets package allows you to open TCP sockets to servers or to create a TCP server socket yourself.

The following is a very basic example of opening a TCP socket to make an HTTP request and print the first 140 characters of the response.

📦 sockets 🏠

🏁 🍇
  🍺 🆕📞 🔤example.com🔤 80❗️ ➡️ socket
  💬 socket 📇 🔤GET / HTTP/1.1❌r❌nHost: example.com❌r❌n❌r❌n🔤❗️❗️

  🍺 👂 socket 140❗️ ➡️ data
  😀 🍺 🔡 data❗️❗️
🍉

At the time of writing this, the above code would return something similar to:

HTTP/1.1 200 OK
Cache-Control: max-age=604800
Content-Type: text/html; charset=UTF-8
Date: Mon, 10 Sep 2018 08:36:28 GMT
Etag: "15410256

Here we’ve an example of a minimal echo-server that listens on port 8728. The server simply sends back a copy of the data it received.

📦 sockets 🏠

💭 Simple echo server listening on port 8728
🏁 🍇
  🍺🆕🏄 8728❗️ ➡️ server

  🔁 👍 🍇
    🍺 🙋 server❗️ ➡️ clientSocket

    🔁 👍 🍇
      🆗 data 👂 clientSocket 50❗️ 🍇
        💭 We’ve read 50 bytes and send them back
        💬 clientSocket data❗️
      🍉
      🙅‍♀️ error 🍇🍉
    🍉
  🍉
🍉

Of course, the code above is minimal. For example, it can handle only one connection.

Types