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32 lines
1.5 KiB
HTML
32 lines
1.5 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<body>
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<h1>JSON-RPC over Websocket demo</h1>
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<input id="url" type="text" placeholder="Type URL" value="ws://localhost:8000/websocket" style="width:20em;" />
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<button id="connect">connect</button>
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<div style="height: 0.3em;"> </div>
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<button id="btn1">Calculate 1 + 2</button>
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<button id="btn2">Calculate 2 * 3</button>
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<div style="margin-top: 1em;">Event log:</div>
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<div id="log" style="background: #eee; height: 10em; padding: 0.5em; overflow:auto;"><div>
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</body>
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<script src="rpc-over-websocket.js"></script>
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<script>
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var rpc, E = function(id) { return document.getElementById(id); };
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var url = E('url'), connect = E('connect'), btn1 = E('btn1'), btn2 = E('btn2'), msglog = E('log');
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var enable = function(en) { btn1.disabled = btn2.disabled = !en; url.disabled = en; connect.innerHTML = en ? 'disconnect' : 'connect'; };
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var log = text => msglog.innerHTML += text + '<br/>\n';
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enable(false);
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connect.onclick = function() {
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console.log(rpc);
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if (rpc) { rpc.close(); rpc = null; return; }
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rpc = jsonrpc(url.value,
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() => enable(true),
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() => enable(false),
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msg => log('NOTIFICATION: ' + JSON.stringify(msg)));
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};
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btn1.onclick = ev => rpc.call('sum', [1, 2]).then(res => log('SUM:' + JSON.stringify(res)));
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btn2.onclick = ev => rpc.call('mul', [2, 3]).then(res => log('MUL:' + JSON.stringify(res)));
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</script>
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</html>
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