Streams only finalized blocks matching the provided data query. Query structure is identical to that of the /stream endpoint. Required request headers: Content-Type: application/json; optional request headers: Accept-Encoding: gzip, Content-Encoding: gzip.
Data query to filter and retrieve finalized blocks
The type of data (fixed to hyperliquidFills for this API).
hyperliquidFills The block number to start fetching from (inclusive).
The block number to fetch up to (inclusive). Optional; if omitted, streams until dataset height or timeout.
Expected hash of the parent of the first requested block.
If true, includes blocks with no matching data in the response.
Field selector for data items to retrieve.
Fill data requests. An empty object matches all fills; an empty array matches no fills.
A stream of finalized blocks in JSON lines format, optionally gzipped. Can be empty if the data query has a bounded range and all blocks in the range have been skipped.
Block header data. Fields are conditionally returned based on the fields.block parameter in the request. Only requested fields will be included in the response.
Trade fill records contained in this block. Fields are conditionally returned based on the fields.fill parameter in the request.