@aws-amplify/storage
Version:
Storage category of aws-amplify
59 lines (56 loc) • 2.42 kB
JavaScript
import { parseMetadata } from '@aws-amplify/core/internals/aws-client-utils';
import { AmplifyUrl } from '@aws-amplify/core/internals/utils';
import { composeServiceApi } from '@aws-amplify/core/internals/aws-client-utils/composers';
import { s3TransferHandler } from '../runtime/s3TransferHandler/fetch.mjs';
import 'fast-xml-parser';
import '../runtime/s3TransferHandler/xhr.mjs';
import 'buffer';
import { buildStorageServiceError, deserializeMetadata, map, deserializeTimestamp, deserializeNumber } from '../utils/deserializeHelpers.mjs';
import { validateS3RequiredParameter, serializePathnameObjectKey, assignStringVariables } from '../utils/serializeHelpers.mjs';
import { validateObjectUrl } from '../../validateObjectUrl.mjs';
import { defaultConfig, parseXmlError } from './base.mjs';
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
const headObjectSerializer = async (input, endpoint) => {
const url = new AmplifyUrl(endpoint.url.toString());
validateS3RequiredParameter(!!input.Key, 'Key');
url.pathname = serializePathnameObjectKey(url, input.Key);
validateObjectUrl({
bucketName: input.Bucket,
key: input.Key,
objectURL: url,
});
const headers = assignStringVariables({
'x-amz-expected-bucket-owner': input.ExpectedBucketOwner,
});
return {
method: 'HEAD',
headers,
url,
};
};
const headObjectDeserializer = async (response) => {
if (response.statusCode >= 300) {
// error is always set when statusCode >= 300
throw buildStorageServiceError((await parseXmlError(response)));
}
else {
const contents = {
...map(response.headers, {
ContentLength: ['content-length', deserializeNumber],
ContentType: 'content-type',
ETag: 'etag',
LastModified: ['last-modified', deserializeTimestamp],
VersionId: 'x-amz-version-id',
}),
Metadata: deserializeMetadata(response.headers),
};
return {
$metadata: parseMetadata(response),
...contents,
};
}
};
const headObject = composeServiceApi(s3TransferHandler, headObjectSerializer, headObjectDeserializer, { ...defaultConfig, responseType: 'text' });
export { headObject };
//# sourceMappingURL=headObject.mjs.map