Module codec 

Bounded, runtime-neutral wire codecs.

These codecs only understand transport framing and JSON syntax. They do not decode vendor objects, perform conversion, or preserve unknown application fields as a common representation.

Structs

CodecError

A codec failure with an optional lower-level source.

CodecLimits

Explicit bounds required by every decoder and encoder.

JsonArrayDecoder

Parses array elements only once a delimiter establishes the token boundary. The retained buffer is one value, independent of transport chunk size.

JsonArrayEncoder

JsonDecoder

MultipartDecoder

Each part owns a real field stream. Consume/drop it before next_part; dropping an unread field lets multer discard it under the same size limits. The caller driving next_part OR the returned body drives the original input. On wasm only the private queue is Send; the original stream stays !Send.

MultipartEncoder

NdjsonDecoder

Accepts LF/CRLF and an optional final complete JSON line without LF.

NdjsonEncoder

SseDecoder

Incremental LF/CRLF/CR framing. Invalid UTF-8 is rejected rather than replaced. finish rejects a pending data event instead of dispatching an event without its required blank-line delimiter. A final partial comment or field line is also rejected. No vendor lifecycle is inferred from EOF.

SseEncoder

SseEvent

Parsed SSE data event. id and retry are effective connection settings, including values supplied in earlier control-only blocks.

Enums

CodecErrorKind

CodecErrorStage

SseFrame

Functions

decode_json

encode_json

encode_sse_done

Literal marker bytes, not a complete streaming encoder; SseEncoder::done accounts this marker against the enclosing body limit.

encode_sse_event

Encodes one event. Use SseEncoder for cumulative limits over a whole body.

read_http_body

Consumes one HTTP body under an aggregate byte limit.

Type Aliases

CodecFuture

A boxed codec operation future. Native futures are Send; wasm follows the connection stream contract and does not require Send.