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http_server example: WebSocket server to set final flag in async messages

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Closes https://github.com/espressif/esp-idf/issues/5405
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David Cermak
2020-06-19 08:20:33 +02:00
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examples/protocols/http_server/ws_echo_server/README.md
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@@ -10,6 +10,7 @@ ws_server_example_test.py could be used as a simple WS client).
The server registers WebSocket handler which echoes back the received WebSocket frame. It also demonstrates
use of asynchronous send, which is triggered on reception of a certain message.
Please note that the WebSocket HTTPD server does not automatically fragment messages, so the application code must deal with fragmentation, setting `final` flag as appropriate. Single (complete/unfragmented) WebSocket frames must have the `FIN` flag set to be accepted as valid (see [RFC6455, section 5.4](https://tools.ietf.org/html/rfc6455#section-5.4)).
### Hardware Required