TCP Server

Requirements

Create a TCP server that listens on a port specified by an environment variable PORT.
When a client connects to the server, a unique ID is generated and sent back to the client
Quando um cliente se conecta ao servidor, um id único é gerado e enviado de volta ao cliente
The client can send messages with three parts of data:
- id - the client's ID (mandatory)
- action - an action expected by the server (mandatory)
- body - any data (JSON, plain text, anything) that a client wants to send to the server (optional).
When the client sends a message with the action LIST, the server should return a list of all connected client IDs
When the client sends a message with the action RELAY, the server should send the message from the body field to all connected clients.

For the TCP client/server project, we have uploaded a vendor folder with dependencies. Therefore, you will need to build the package using:

go build cmd/tcp/main.go

After building the Go package, you can use this package by running one of the following commands:

PORT=8080 ./main server to run the server on PORT 8080.
PORT=8080 ./main client to run the client, connecting to the server on localhost, which is running on port 8080.

The available commands are:

If you are not connected using the official client, you must send a message using this pattern:

<id>|<comand>:<optional_message>