36 lines
1.2 KiB
JavaScript
36 lines
1.2 KiB
JavaScript
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/**
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* @file site/client-websocket.js
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*/
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(()=>{
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const socketUrl = 'ws://localhost:8090';
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let socket = new WebSocket(socketUrl);
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socket.addEventListener('close',()=>{
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// Then the server has been turned off,
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// either due to file-change-triggered reboot,
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// or to truly being turned off.
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// Attempt to re-establish a connection until it works,
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// failing after a few seconds (at that point things are likely
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// turned off/permanantly broken instead of rebooting)
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const interAttemptTimeoutMilliseconds = 100;
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const maxDisconnectedTimeMilliseconds = 3000;
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const maxAttempts = Math.round(maxDisconnectedTimeMilliseconds/interAttemptTimeoutMilliseconds);
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let attempts = 0;
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const reloadIfCanConnect = ()=>{
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attempts ++ ;
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if(attempts > maxAttempts){
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console.error("Could not reconnect to dev server.");
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return;
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}
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socket = new WebSocket(socketUrl);
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socket.addEventListener('error',()=>{
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setTimeout(reloadIfCanConnect,interAttemptTimeoutMilliseconds);
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});
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socket.addEventListener('open',()=>{
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location.reload();
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});
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};
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reloadIfCanConnect();
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});
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})();
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