Struct Event 

pub struct Event {
    pub id: String,
    pub source: String,
    pub event_type: String,
    pub subject: Option<String>,
    pub data: Option<EventData>,
    pub time: Option<DateTime<Utc>>,
    pub datacontenttype: Option<String>,
    pub dataschema: Option<String>,
    pub extensions: Vec<(String, ExtensionValue)>,
}

A stored event with a full source URI.

After storage, the EvidentSource server transforms the stream name into a full URI like https://host/db/database-name/streams/stream-name.

Fields

id: String

Unique identifier for this event.

source: String

Full source URI (e.g., “https://host/db/name/streams/stream”).

event_type: String

The event type (e.g., “com.example.account.opened”).

subject: Option<String>

Optional subject identifying the entity this event is about.

data: Option<EventData>

Optional event data payload.

time: Option<DateTime<Utc>>

Optional timestamp when the event occurred.

datacontenttype: Option<String>

Optional content type of the data.

dataschema: Option<String>

Optional schema URI for the data.

extensions: Vec<(String, ExtensionValue)>

Extension attributes.

Implementations

impl Event

pub fn source(&self) -> &str

Get the full source URI.

pub fn stream(&self) -> Option<&str>

Extract the stream name from the source URI.

Parses URIs like https://host/db/name/streams/my-stream to extract my-stream. Returns None if the URI doesn’t match the expected pattern.

pub fn event_type(&self) -> &str

Get the event type.

pub fn subject(&self) -> Option<&str>

Get the subject, if present.

pub fn data(&self) -> Option<&EventData>

Get the data payload, if present.

pub fn time(&self) -> Option<DateTime<Utc>>

Get the timestamp, if present.

pub fn extension(&self, key: &str) -> Option<&ExtensionValue>

Get an extension value by key.

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<(), Error>

Formats the value using the given formatter.

impl From<Event> for CloudEvent

fn from(event: Event) -> Self

Converts to this type from the input type.

impl TryFrom<CloudEvent> for Event

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(proto: CloudEvent) -> Result<Self, Self::Error>

Performs the conversion.