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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | 12x 12x 3x 3x 9x 6x 3x 9x 9x | import { GDALFunctions } from '../../allCFunctions';
/**
* Get bytes of the file.
*
* @module f/getFileBytes
* @async
* @param {string|TypeDefs.FilePath} filePath The path of the file to be downloaded.
* @return {Promise<Uint8Array>} "Promise" returns an array of byte of the file.
* @example
* // Download file from "/output" path on the browser.
* const files = await Gdal.getOutputFiles();
* const filePath = files[0].path;
* const fileBytes = Gdal.getFileBytes(filePath);
* const fileName = filePath.split('/').pop();
* saveAs(fileBytes, filename);
*
* function saveAs(fileBytes, fileName) {
* const blob = new Blob([fileBytes]);
* const link = document.createElement('a');
* link.href = URL.createObjectURL(blob);
* link.download = fileName;
* link.click();
* }
*/
export default function getFileBytes(filePath) {
return new Promise((resolve) => {
let path;
if (!filePath) {
resolve(new Uint8Array());
return;
}
if (filePath.local) {
path = filePath.local;
} else {
path = filePath;
}
const bytes = GDALFunctions.Module.FS.readFile(path, { encoding: 'binary' });
resolve(bytes);
});
}
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