TCP listener: Ping

An example of a TCP listener on localhost that will log the message if written to and close the connection if connected to.

const decoder = new TextDecoder();

const listener = Deno.listen({
  hostname: "127.0.0.1",
  port: 8080,
  transport: "tcp",
});

for await (const conn of listener) {

  const buf = new Uint8Array(1024);

  console.log("Server - received: ", decoder.decode(buf));

Run this example locally using the Deno CLI:

deno run -N https://docs.deno.com/examples/scripts/tcp_listener.ts

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