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encode_response_streaming

haystack_server::content

Function encode_response_streaming 

Source 
pub fn encode_response_streaming(
    grid: &HGrid,
    accept: &str,
) -> Result<(Vec<u8>, Vec<Vec<u8>>, &'static str), CodecError>
Expand description

Encode a grid as a streaming byte iterator: yields header chunk then row chunks.

Returns (header_bytes, row_batches, content_type). Rows are batched into groups of ~500 to balance streaming granularity against allocation overhead. For codecs without streaming support (or HBF), the header contains the full response and row_batches is empty.