esp-idf/examples/protocols/asio/chat_server/README.md

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# Asio chat server example
Simple Asio chat server using WiFi STA or Ethernet.
## Example workflow
- Wi-Fi or Ethernet connection is established, and IP address is obtained.
- Asio chat server is started on port number defined through the project configuration.
- Chat server echoes a message (received from any client) to all connected clients.
## Running the example
- Open project configuration menu (`idf.py menuconfig`) to configure Wi-Fi or Ethernet. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
- Set server port number in menuconfig, "Example configuration".
- Run `idf.py -p PORT flash monitor` to build and upload the example to your board and connect to it's serial terminal.
- Wait for the board to connect to WiFi or Ethernet (note the IP address).
- Connect to the server using multiple clients, for example using any option below.
- build and run asi chat client on your host machine
- run chat_client asio example on ESP platform
- since chat message consist of ascii size and message, it is possible to
netcat `nc IP PORT` and type for example ` 4ABC<CR>` to transmit 'ABC\n'
See the README.md file in the upper level 'examples' directory for more information about examples.