eufy-mega / core/contracts / RawDpCodec

Interface: RawDpCodec

Reader for the structured, base64-encoded values some device data points carry in place of a plain scalar. Such a value is a length-prefixed field-and-value tree; this walks the tree and reports the fields it finds, with no schema and no notion of which data point the value came from.

The split mirrors DpInboundFrame: decoding a container is a technical job, naming its contents is a semantic one. A capability receives a codec and asks for the field positions whose meaning it knows, so neither half has to carry the other's knowledge.

Methods

decode()

decode(value): readonly RawDpField[] | undefined;

Decode a base64 payload to its top-level fields, or undefined when the value is not a well-formed payload — a length prefix disagreeing with the body, an encoding this does not recognise, or a string that is not base64 at all. The result is a whole field list or nothing, never a partial read.

Parameters

value

string

Returns

readonly RawDpField[] | undefined

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nested()

nested(value): readonly RawDpField[] | undefined;

Read a length-delimited field's bytes as a nested field list, on the same terms as decode.

Parameters

value

Buffer

Returns

readonly RawDpField[] | undefined