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Protocol Buffers

A compact binary format whose messages are described by a schema both sides share.

Protocol Buffers encode a message as numbered, typed fields defined in a .proto schema; unknown fields are skipped, which lets old and new versions read each other's messages.

Examples

  • The greenhouse climate reading shrinks to 21 bytes in Protocol Buffers because it sends only field numbers like "field 3: 21.5", which mean nothing without the shared schema.

See also

CBOR JSON message contract schema version
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