gracefully report on busy port
Massimo Melina committed
Dec 31, 2021 at 12:14 UTC
1b3d471b0f4786780e50b6fa46a4c9b3dcb0bf0b
1 file changed
+7
-2
src/index.ts
+7
-2
@@ -98,9 +98,14 @@ async function listenOn(port: number) {
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resolve(err)
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})
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})
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- await new Promise(resolve =>
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+ await new Promise(resolve => {
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srv = app.listen(port, () => {
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console.log('running on port', port, DEV, new Date().toLocaleString())
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resolve(null)
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- }))
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+ }).on('error', e => {
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+ const { code } = e as any
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+ if (code === 'EADDRINUSE')
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+ console.error(`couldn't listen on busy port ${port}`)
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+ })
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+ })
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}