Struct JsonCodec 

pub struct JsonCodec;

Trait Implementations

impl Clone for JsonCodec

fn clone(&self) -> JsonCodec

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl CratestackCodec for JsonCodec

fn encode_into<T>( &self, value: &T, out: &mut Vec<u8>, ) -> Result<(), CratestackError>

where T: Serialize + ?Sized,

serde_json writes into any io::Write, so this appends to out directly instead of the default’s encode-then-copy.

fn decode<T>(&self, bytes: &[u8]) -> Result<T, CratestackError>

where T: for<'de> Deserialize<'de>,

Same as serde_json::from_slice (including its trailing-data check), wrapped in serde_path_to_error so the error’s detail names the field that failed (failed to decode JSON body: amountE8: invalid type ...). The public message of CratestackError::Codec stays generic; the path reaches operators through detail() only.

const CONTENT_TYPE: &'static str = "application/json"

fn encode<T>(&self, value: &T) -> Result<Vec<u8>, CratestackError>

where T: Serialize + ?Sized,

impl Debug for JsonCodec

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for JsonCodec

fn default() -> JsonCodec

Returns the “default value” for a type.

impl HttpClientCodec for JsonCodec

Available on crate feature codec-json only.

fn accept_header_value(&self) -> &'static str

fn sequence_accept_header_value(&self) -> &'static str

fn decode_response<T>( &self, content_type: &str, body: &[u8], ) -> Result<T, CratestackError>

where T: DeserializeOwned,

fn decode_sequence_response<T>( &self, content_type: &str, body: &[u8], ) -> Result<Vec<T>, CratestackError>

where T: DeserializeOwned,

fn payload_accept(&self) -> &'static str

The response payload types this codec reads inside a COSE envelope, as a Cratestack-Payload-Accept value: one to eight lowercase type/subtype entries joined by ", ", in order of preference. The default is CONTENT_TYPE alone, which suits a codec that writes and reads the same type; override it for an asymmetric one (a form in, JSON out). A sealed call sends the header only when this is not application/cbor, and the client refuses any answer sealed under a type it does not list.