Enum ChatSseEvent 

#[non_exhaustive]
pub enum ChatSseEvent {
    StateChange(StateChange),
    Typing {
        chat_id: Id,
        sender_id: Id,
        typing: bool,
    },
    Presence {
        contact_id: Id,
        presence: Presence,
        last_active_at: Option<String>,
        status_text: Option<String>,
        status_emoji: Option<String>,
    },
    Unknown {
        event_type: String,
    },
}

A parsed SSE event from the JMAP Chat event source.

Extends the base-client SseEvent with chat-specific variants for typing indicators and presence updates.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

StateChange(StateChange)

A “state” event: maps accountId → (typeName → newState).

Triggers a /changes call for each type listed. Wire: {"@type":"StateChange","changed":{"<accountId>":{"<TypeName>":"<state>"}}}

Typing

A “typing” indicator event. Not persisted; no state token.

Wire: {"chatId":"<id>","senderId":"<id>","typing":<bool>}

Fields

chat_id: Id

The chat in which typing is occurring.

sender_id: Id

The sender contact id.

typing: bool

true = started typing, false = stopped.

Presence

A “presence” update event. Not persisted.

Wire: {"contactId":"<id>","presence":"<state>","lastActiveAt":"..."|null,...}

Fields

contact_id: Id

The contact whose presence changed.

presence: Presence

Presence state.

last_active_at: Option<String>

ISO 8601 timestamp of last activity, or None if absent/null.

status_text: Option<String>

Free-text status message, or None if absent/null.

status_emoji: Option<String>

Status emoji, or None if absent/null.

Unknown

Unrecognized event type, keepalive, or parse failure.

event_type carries the value of the SSE event: field for diagnostics — e.g. "ping" for a keepalive. Callers should silently ignore this variant and log event_type when debugging.

Fields

event_type: String

The raw value of the SSE event: field; empty string if absent.

Trait Implementations

impl Clone for ChatSseEvent

fn clone(&self) -> ChatSseEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChatSseEvent

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

Formats the value using the given formatter.