function processTransfer()

in email-mvt-archive/src/email-mvt-pixel-log-archiver-lambda.ts [42:59]

18 lines of code
1 McCabe index (conditional complexity)


function processTransfer(
    transferableFiles: TransferableFile[],
    sourceS3Bucket: string,
    destinationS3Bucket: string): Array<Promise<string | S3.Types.CopyObjectOutput>> {
  return transferableFiles.map(fileToTransfer => {
    return s3.headObject({
      Bucket: `${destinationS3Bucket}/dt=${fileToTransfer.destinationFolder}`,
      Key: fileToTransfer.sourceFileName
    }).promise()
      .then(() => Promise.resolve('skipped'))
      .catch(() => s3.copyObject({
        ACL: 'bucket-owner-read',
        Bucket: `${destinationS3Bucket}/dt=${fileToTransfer.destinationFolder}`,
        CopySource: `${sourceS3Bucket}/${fileToTransfer.sourceFileName}`,
        Key: fileToTransfer.sourceFileName
      }).promise());
  });
}