Interface DownloadCallOptions

Override the response Cache-Control header.

Override the response Content-Disposition header.

Override the response Content-Encoding header.

Override the response Content-Language header.

Override the response Content-Type header.

Override the response Expires header.

HTTP method. Defaults to 'GET'. Use 'HEAD' to fetch only response headers. Prefer the dedicated B2Object.head / Bucket.head method over this option — those return a body-less result so callers never have to remember to drain the empty body of a HEAD response.

Callback invoked as the response body is consumed.

Progress is byte-driven, not request-driven: the callback fires per chunk as the caller reads the returned body stream, and the final partsCompleted: 1 event only fires once the stream is read to completion. Downloads that are dropped or aborted partway through will NOT emit a completePart() event.

HTTP Range header value (e.g., "bytes=0-999").

SSE-C decryption parameters, required if the file was uploaded with SSE-C.

Abort signal for cancelling the download.