method

bun.S3Client.presign

path: string,
options?: S3FilePresignOptions
): string;

Generate a presigned URL that grants temporary access to a file, for uploads or downloads, without exposing credentials.

@param path

The path to the file in the bucket

@param options

Options for generating the presigned URL

@returns

A presigned URL string

// Download URL
const downloadUrl = bucket.presign("file.pdf", {
  expiresIn: 3600 // 1 hour
});

// Upload URL
const uploadUrl = bucket.presign("uploads/image.jpg", {
  method: "PUT",
  expiresIn: 3600,
  type: "image/jpeg",
  acl: "public-read"
});

// Long-lived public URL
const publicUrl = bucket.presign("public/doc.pdf", {
  expiresIn: 7 * 24 * 60 * 60, // 7 days
  acl: "public-read"
});