Struct Event 

pub struct Event {
    pub id: String,
    pub event_type: String,
    pub source: String,
    pub subject: String,
    pub content_type: String,
    pub version: String,
    pub timestamp: DateTime<Utc>,
    pub data: Value,
}

A structured event envelope following CloudEvents conventions.

Fields

id: String

Unique event identifier.

event_type: String

The type of event (e.g. "content.created").

source: String

The originating service or component.

subject: String

Optional subject the event relates to.

content_type: String

MIME type of the data field.

version: String

Schema version of the event.

timestamp: DateTime<Utc>

When the event was created.

data: Value

Arbitrary event payload.

Implementations

impl Event

pub fn new(event_type: impl Into<String>, source: impl Into<String>) -> Self

Create a new event with the given type and source.

pub fn with_subject(self, subject: impl Into<String>) -> Self

Set the subject.

pub fn with_data(self, data: impl Serialize) -> AppResult<Self>

Serialize data into the event payload.

pub fn with_version(self, version: impl Into<String>) -> Self

Set the schema version.

pub fn with_content_type(self, content_type: impl Into<String>) -> Self

Set the content type.

pub fn to_json(&self) -> AppResult<Vec<u8>>

Serialize the entire event to JSON bytes.

pub fn from_json(bytes: &[u8]) -> AppResult<Self>

Deserialize an event from JSON bytes.

pub fn parse_data<T: DeserializeOwned>(&self) -> AppResult<T>

Parse the data field into a concrete type.

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Event

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Event

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Event

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.