downloadAndValidate

function downloadAndValidate(response, expectedPieceCid): Promise<Uint8Array<ArrayBufferLike>>;

Defined in: packages/synapse-sdk/src/piece/download.ts:31

Download data from a Response object, validate its PieceCID, and return as Uint8Array

This function:

1. Streams data from the Response body
2. Calculates PieceCID during streaming
3. Collects all chunks into a Uint8Array
4. Validates the calculated PieceCID matches the expected value

Parameters

Parameter	Type	Description
response	Response	The Response object from a fetch() call
expectedPieceCid	string | PieceLink	The expected PieceCID to validate against

Returns

Promise<Uint8Array<ArrayBufferLike>>

The downloaded data as a Uint8Array

Throws

Error if PieceCID validation fails or download errors occur

Example

const response = await fetch(url)
const data = await downloadAndValidate(response, 'bafkzcib...')