Function generatePresignedUploadUrl

apps/sim/lib/uploads/core/storage-service.ts:531–581

(
  options: GeneratePresignedUrlOptions
)

 * Generate a presigned URL for direct file upload
 */
export async function generatePresignedUploadUrl(
  options: GeneratePresignedUrlOptions
): Promise<PresignedUrlResponse> {
  const {
    fileName,
    contentType,
    fileSize,
    context,
    userId,
    expirationSeconds = 3600,
    metadata = {},
    customKey,
  } = options

  const allMetadata = {
    ...metadata,
    originalName: fileName,
    uploadedAt: new Date().toISOString(),
    purpose: context,
    ...(userId && { userId }),
  }

  const config = getStorageConfig(context)

  let key: string
  if (customKey) {
    key = customKey
  } else {
    const timestamp = Date.now()
    const uniqueId = randomBytes(8).toString('hex')
    const safeFileName = fileName.replace(/[^a-zA-Z0-9.-]/g, '_')
    key = `${context}/${timestamp}-${uniqueId}-${safeFileName}`
  }

  if (USE_S3_STORAGE) {
    return generateS3PresignedUrl(
      key,
      contentType,
      fileSize,
      allMetadata,
      config,
      expirationSeconds
    )
  }

  if (USE_BLOB_STORAGE) {
    return generateBlobPresignedUrl(key, contentType, allMetadata, config, expirationSeconds)
  }

  throw new Error('Cloud storage not configured. Cannot generate presigned URL for local storage.')
}

/**
 * Generate presigned URL for S3