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VistasIs there a fine way to get file mime type / extension by a download link?
I need to get file extension from a download link, currently I'm using the following script (excerpt from React hook)
// ...
useEffect(() => {
/// ...
void (async () => {
try {
setIsLoading(true);
const response = await fetch(downloadLink);
const blob = await response.blob();
setFileExtension(fileExtensionByMimeType[blob.type]);
} finally {
setIsLoading(false);
}
})();
}, []);
// ....
This code works, but the problem is that response.blob() takes time relatively to the file size, and I guess my solution is just bad.
Maybe there is some elegant way to solve my problem?
·
Juan Pablo Isaza
1 Respuestas
Responde la pregunta0
My bad, just discovered that I have all the headers I need, I was confused with empty headers prop:
Turns out it's not empty and I can get my mime type by this code:
const response = await fetch(downloadLink, { method: 'HEAD' });
const mimeType = response.headers.get('content-type');
Also, I think HEAD is appropriate here
·
Juan Pablo Isaza
Denunciar
Responde la pregunta