Function getPresignedUploadPartUrls

getPresignedUploadPartUrls(
    key: string,
    uploadId: string,
    partCount: number,
    expiresInSeconds: number,
): Promise<{ partNumber: number; url: string }[]>
Generates presigned PUT URLs for each part of an in-progress multipart upload.
Parameters
- key: string
  Object key in the bucket.
- uploadId: string
  Multipart upload id from createMultipartUpload.
- partCount: number
  Number of parts (1-based part numbers through partCount).
- expiresInSeconds: number
  Presigned URL lifetime in seconds.
Returns Promise<{ partNumber: number; url: string }[]>
Presigned URLs indexed by part number.
- Defined in lib/r2.ts:251