Module compression 

Application-level compression for WebSocket payloads.

Since tokio-tungstenite doesn’t support permessage-deflate, we implement application-level gzip compression for large payloads (like snapshots).

Compressed payloads are sent as raw binary gzip data. Clients detect compression by checking for the gzip magic bytes (0x1f, 0x8b) at the start of binary WebSocket frames.

This approach eliminates the ~33% overhead of base64 encoding that was previously used with JSON-wrapped compressed data.

Enums

CompressedPayload

Result of attempting to compress a payload.

Constants

GZIP_MAGIC

Gzip magic bytes - used by clients to detect compressed frames.

Functions

is_gzip

Check if bytes start with gzip magic bytes.

maybe_compress

Compress a payload if it exceeds the threshold.