How to use the file-type.fromBuffer function in file-type
To help you get started, we’ve selected a few file-type examples, based on popular ways it is used in public projects.
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Grathium-Industries / labyrinth / src / main / services / storage.ts View on Github 
public addFavicon = async (url: string): Promise => {
if (!this.favicons.get(url)) {
const res = await requestURL(url);
if (res.statusCode === 404) {
throw new Error('404 favicon not found');
}
let data = Buffer.from(res.data, 'binary');
const type = await fromBuffer(data);
if (type && type.ext === 'ico') {
data = Buffer.from(new Uint8Array(await convertIcoToPng(data)));
}
const str = `data:${(await fromBuffer(data)).ext};base64,${data.toString(
'base64',
)}`;
this.insert({
scope: 'favicons',
item: {
url,
data: str,
},
});if (!this.favicons.get(url)) {
const res = await requestURL(url);
if (res.statusCode === 404) {
throw new Error('404 favicon not found');
}
let data = Buffer.from(res.data, 'binary');
const type = await fromBuffer(data);
if (type && type.ext === 'ico') {
data = Buffer.from(new Uint8Array(await convertIcoToPng(data)));
}
const str = `data:${(await fromBuffer(data)).ext};base64,${data.toString(
'base64',
)}`;
this.insert({
scope: 'favicons',
item: {
url,
data: str,
},
});
this.favicons.set(url, str);
return str;
} else {
return this.favicons.get(url);file-type
Detect the file type of a Buffer/Uint8Array/ArrayBuffer
