28 lines
793 B
Scheme
28 lines
793 B
Scheme
;; Run with 'awful example1.scm'.
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;; On web browser open http://localhost:8080/client and watch the
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;; new time coming each second from the server.
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(import (chicken time posix) (chicken random) (awful sse) awful spiffy srfi-18)
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(define (sse-proc)
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(let loop ()
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(send-sse-data (seconds->string) id: (pseudo-random-integer 10) event: "message")
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(thread-sleep! 1)
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(loop)))
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(define-page/sse "/client"
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(lambda ()
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(add-javascript
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"var source = new EventSource('/sse');
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source.onmessage = function (event) {
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display = document.getElementById('display');
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display.innerHTML = event.data;
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};")
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(add-css "#display { color: blue; }")
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`(div "Current time: "
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(span (@ (id "display")) "")))
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"/sse"
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sse-proc
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use-sxml: #t)
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