Struct akka_projection_rs_grpc::proto::event_producer_service_client::EventProducerServiceClient

pub struct EventProducerServiceClient<T> { /* private fields */ }

EventProducerService runs on the producer side and implements the producer side of the EventsBySlices query, which can be used with Akka Projection over gRPC.

1. Events are stored in the event journal on the producer side.
2. Consumer side starts an Akka Projection which locally reads its offset from the Projection offset store.
3. Consumer side establishes a replication stream from the producer service by sending the InitReq with the offset to start from.
4. Events are read from the journal on the producer side and emitted to the replication stream.
5. Consumer side processes the events in a Projection handler.
6. Offset is stored on the consumer side by the Projection offset store.
7. Producer continues to read new events from the journal and emit to the stream.

The consumer can define event filters with the FilterCriteria, which can be included in the InitReq and also changed in runtime by sending FilterReq.

Implementations

impl EventProducerServiceClient<Channel>

pub async fn connect<D>(dst: D) -> Result<Self, Error>where D: TryInto<Endpoint>, D::Error: Into<StdError>,

Attempt to create a new client by connecting to a given endpoint.

impl<T> EventProducerServiceClient<T>where T: GrpcService<BoxBody>, T::Error: Into<StdError>, T::ResponseBody: Body<Data = Bytes> + Send + 'static, <T::ResponseBody as Body>::Error: Into<StdError> + Send,

pub fn new(inner: T) -> Self

pub fn with_origin(inner: T, origin: Uri) -> Self

pub fn with_interceptor<F>( inner: T, interceptor: F ) -> EventProducerServiceClient<InterceptedService<T, F>>where F: Interceptor, T::ResponseBody: Default, T: Service<Request<BoxBody>, Response = Response<<T as GrpcService<BoxBody>>::ResponseBody>>, <T as Service<Request<BoxBody>>>::Error: Into<StdError> + Send + Sync,

pub fn send_compressed(self, encoding: CompressionEncoding) -> Self

Compress requests with the given encoding.

This requires the server to support it otherwise it might respond with an error.

pub fn accept_compressed(self, encoding: CompressionEncoding) -> Self

Enable decompressing responses.

pub fn max_decoding_message_size(self, limit: usize) -> Self

Limits the maximum size of a decoded message.

Default: 4MB

pub fn max_encoding_message_size(self, limit: usize) -> Self

Limits the maximum size of an encoded message.

Default: usize::MAX

pub async fn events_by_slices( &mut self, request: impl IntoStreamingRequest<Message = StreamIn> ) -> Result<Response<Streaming<StreamOut>>, Status>

pub async fn event_timestamp( &mut self, request: impl IntoRequest<EventTimestampRequest> ) -> Result<Response<EventTimestampResponse>, Status>

Used in some edge cases by the offset store to retrieve the timestamp for a certain event.

pub async fn load_event( &mut self, request: impl IntoRequest<LoadEventRequest> ) -> Result<Response<LoadEventResponse>, Status>

Lazy loading of a specific event.

Trait Implementations

impl<T: Clone> Clone for EventProducerServiceClient<T>

fn clone(&self) -> EventProducerServiceClient<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for EventProducerServiceClient<T>

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

Formats the value using the given formatter.