Created
March 25, 2020 11:58
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Wait for url to become available. No dependencies.
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#!/usr/bin/env node | |
const http = require('http'); | |
let timeoutFired = false; | |
const urlReady = new Promise((resolve, reject) => { | |
const timeout = setTimeout(() => { | |
timeoutFired = true; | |
reject(new Error('Timeout')); | |
}, 60000); | |
getUrl(timeout, resolve, reject); | |
}); | |
function getUrl(timeoutId, resolve, reject) { | |
const url = process.argv[2]; | |
http.get(url, (resp) => { | |
resp.on('data', () => { | |
clearTimeout(timeoutId); | |
resolve(); | |
}); | |
}).on('error', (err) => { | |
if (timeoutFired) { | |
reject(); | |
return; | |
} | |
setTimeout(() => getUrl(timeoutId, resolve, reject), 1000); | |
}); | |
} | |
urlReady.catch((err) => { | |
console.log(err); | |
process.exit(1); | |
}); |
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