Hello, nginx team. I'm using nginx as reverse proxy . I'm trying to make nginx plugin module(I'm noob of this) for some purpose . I have back-server opening websocket behind nginx . client <-> nginx(reverse proxy) <-> back-server(websocket) back-server is listening 3 numbers of websocket. - websocket(A) - websocket(B) - websocket(C) I'd like to watch websocket(only A) connection status(connection fail/opened/closed) in nginx plugin module for some purpose. i can catch the request websocket 'A' connection in nginx plugin module by registering NGX_HTTP_ACCESS_PHASE handler(parse header and compare subprotocol(A) of http request). Query : Now, how can i get the websocket connection status(connection fail/opened/closed) event with the same http request context getting from NGX_HTTP_ACCESS_PHASE handler ? scenario : 1. get websocket(A) connection request in nginx plugin module . 2. catch event in nginx plugin moudle when the request failed / opened and closed . 3. when the connection is opened or closed,i do some work . More query : Is the context from NGX_HTTP_ACCESS_PHASE handler valid until websocket connection closed? (ngx_http_foo_handler(ngx_http_request_t *r) <- context r ) If not , is there another context valid from http-requested to websocket connection closed? API & simple sample code will be very helpful . Thank you for your support
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