spacetimedb::messages::websocket

Struct TransactionUpdate

Source 
pub struct TransactionUpdate<F>
where
    F: WebsocketFormat,
{
    pub status: UpdateStatus<F>,
    pub timestamp: Timestamp,
    pub caller_identity: Identity,
    pub caller_connection_id: ConnectionId,
    pub reducer_call: ReducerCallInfo<F>,
    pub energy_quanta_used: EnergyQuanta,
    pub total_host_execution_duration: TimeDuration,
}
Expand description

Received by client from database upon a reducer run.

Clients receive TransactionUpdates only for reducers which update at least one of their subscribed rows, or for their own Failed or OutOfEnergy reducer invocations.

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§status: UpdateStatus<F>

The status of the transaction. Contains the updated rows, if successful.

§timestamp: Timestamp

The time when the reducer started.

Note that Timestamp serializes as i64 nanoseconds since the Unix epoch.

§caller_identity: Identity

The identity of the user who requested the reducer run. For event-driven and scheduled reducers, it is the identity of the database owner.

§caller_connection_id: ConnectionId

The 16-byte ConnectionId of the user who requested the reducer run.

The all-zeros id is a sentinel which denotes no meaningful value. This can occur in the following situations:

  • init and update reducers will have a caller_connection_id if and only if one was provided to the publish HTTP endpoint.
  • Scheduled reducers will never have a caller_connection_id.
  • Reducers invoked by WebSocket or the HTTP API will always have a caller_connection_id.
§reducer_call: ReducerCallInfo<F>

The original CallReducer request that triggered this reducer.

§energy_quanta_used: EnergyQuanta

The amount of energy credits consumed by running the reducer.

§total_host_execution_duration: TimeDuration

How long the reducer took to run.

Trait Implementations§

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impl<F> Debug for TransactionUpdate<F>
where F: Debug + WebsocketFormat,

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

Formats the value using the given formatter. Read more
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impl<'de, F> Deserialize<'de> for TransactionUpdate<F>
where F: WebsocketFormat + Deserialize<'de>,

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fn deserialize<D>( deserializer: D, ) -> Result<TransactionUpdate<F>, <D as Deserializer<'de>>::Error>
where D: Deserializer<'de>,

Deserialize this value from the given deserializer.
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impl<F> From<TransactionUpdate<F>> for ServerMessage<F>
where F: WebsocketFormat,

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fn from(original: TransactionUpdate<F>) -> ServerMessage<F>

Converts to this type from the input type.
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impl<F> Serialize for TransactionUpdate<F>
where F: WebsocketFormat + Serialize,

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fn serialize<S>( &self, __serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>
where S: Serializer,

Serialize self in the data format of S using the provided serializer.
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impl<F> SpacetimeType for TransactionUpdate<F>
where F: WebsocketFormat + SpacetimeType + 'static,

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fn make_type<S>(__typespace: &mut S) -> AlgebraicType
where S: TypespaceBuilder,

Returns an AlgebraicType representing the type for Self in SATS and in the typing context in typespace. This is used by the automatic type registration system in Rust modules. Read more

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