madiator.com/ui/effects/use-stream.js
2021-08-16 12:11:25 +02:00

56 lines
1.6 KiB
JavaScript

import React from 'react';
import https from 'https';
import useIsMounted from 'effects/use-is-mounted';
// Returns web blob from the streaming url
export default function useStream(url) {
const isMounted = useIsMounted();
const [state, setState] = React.useState({
error: false,
loading: true,
content: null,
});
React.useEffect(() => {
if (url && isMounted.current) {
https.get(url, response => {
if (isMounted && response.statusCode >= 200 && response.statusCode < 300) {
let chunks = [];
// Handle stream chunk recived
response.on('data', function(chunk) {
if (isMounted.current) {
chunks.push(chunk);
} else {
// Cancel stream if component is not mounted:
// The user has left the viewer page
response.destroy();
}
});
// Handle stream ended
response.on('end', () => {
if (isMounted.current) {
const buffer = Buffer.concat(chunks);
const blob = new Blob([buffer]);
setState({ content: blob, loading: false });
}
});
// Handle stream error
response.on('error', () => {
if (isMounted.current) {
setState({ error: true, loading: false });
}
});
} else {
// Handle network error
if (isMounted.current) {
setState({ error: true, loading: false });
}
}
});
}
}, [url, isMounted]);
return state;
}