blob-service-upload.js
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blob-service-upload.js
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	// @flow

	import * as FileSystem from 'expo-file-system';
	import { Platform } from 'react-native';

	import { pathFromURI } from 'lib/media/file-utils.js';
	import type { BlobServiceUploadHandler } from 'lib/utils/blob-service-upload.js';
	import { getMessageForException } from 'lib/utils/errors.js';

	const blobServiceUploadHandler: BlobServiceUploadHandler = async (
	url,
	method,
	input,
	options,
	) => {
	if (input.blobInput.type !== 'uri') {
	throw new Error('Wrong blob data type');
	}
	let path = input.blobInput.uri;
	if (Platform.OS === 'android') {
	const resolvedPath = pathFromURI(path);
	if (resolvedPath) {
	path = resolvedPath;
	}
	}
	const uploadTask = FileSystem.createUploadTask(
	url,
	path,
	{
	uploadType: FileSystem.FileSystemUploadType.MULTIPART,
	fieldName: 'blob_data',
	httpMethod: method,
	parameters: { blob_hash: input.blobHash },
	},
	uploadProgress => {
	if (options?.onProgress) {
	const { totalByteSent, totalBytesExpectedToSend } = uploadProgress;
	options.onProgress(totalByteSent / totalBytesExpectedToSend);
	}
	},
	);
	if (options?.abortHandler) {
	options.abortHandler(() => uploadTask.cancelAsync());
	}
	try {
	await uploadTask.uploadAsync();
	} catch (e) {
	throw new Error(
	`Failed to upload blob: ${getMessageForException(e) ?? 'unknown error'}`,
	);
	}
	};

	export default blobServiceUploadHandler;