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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';
import { createDefaultHTTPRequestHeaders } from 'lib/utils/services-utils.js';
const blobServiceUploadHandler: BlobServiceUploadHandler = async (
url,
method,
input,
authMetadata,
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 headers = authMetadata && createDefaultHTTPRequestHeaders(authMetadata);
let uploadOptions = {
uploadType: FileSystem.FileSystemUploadType.MULTIPART,
fieldName: 'blob_data',
httpMethod: method,
parameters: { blob_hash: input.blobHash },
headers,
};
if (Platform.OS === 'android' && path.endsWith('.dat')) {
// expo-file-system is not able to deduce the MIME type of .dat files, so we
// specify it explicitly here. Without this, we get this error:
// guessContentTypeFromName(file.name) must not be null
uploadOptions = {
...uploadOptions,
mimeType: 'application/octet-stream',
};
}
const uploadTask = FileSystem.createUploadTask(
url,
path,
uploadOptions,
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;

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