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SubscriptionServiceClient

sui_rpc::proto::sui::rpc::v2::subscription_service_client

Struct SubscriptionServiceClient 

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pub struct SubscriptionServiceClient<T> { /* private fields */ }
Expand description

SubscriptionService provides filtered, real-time streams of checkpoints, transactions, and events.

Each Subscribe API pairs with the LedgerService List API of the same name: requests take the same filter message, and responses carry the same item and watermark shapes with identical cursor semantics.

Subscriptions do not support resumption. A new subscription always begins at the current tip of the chain as seen by the server (the latest executed checkpoint). To recover data missed between subscriptions, replay the gap with the paired List API: pass the last received Watermark.cursor as options.after on the List request (for checkpoints, pass the last received cursor + 1 as start_checkpoint). The List scan reads from the indexed tip, which may trail the subscription’s start position; repeat the List call as the index advances until the replay reaches the position established by the subscription’s first frame.

A subscription behaves like an unbounded ascending scan: every frame carries the subscriber’s resume point, and progress advances as checkpoints are fully covered. Two delivery guarantees keep sparse filters live: the first frame on a filtered subscription is a progress-only frame establishing the stream’s start position, and progress continues to advance with bounded staleness even when no item matches.

Subscription streams have no successful end: they run until cancelled by the client or terminated by the server with a gRPC status.

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impl SubscriptionServiceClient<Channel>

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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.

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

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pub fn new(inner: T) -> Self

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

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

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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.

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

Enable decompressing responses.

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

Limits the maximum size of a decoded message.

Default: 4MB

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

Limits the maximum size of an encoded message.

Default: usize::MAX

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pub async fn subscribe_checkpoints( &mut self, request: impl IntoRequest<SubscribeCheckpointsRequest>, ) -> Result<Response<Streaming<SubscribeCheckpointsResponse>>, Status>

Subscribe to the stream of checkpoints.

The stream begins at the latest executed checkpoint as seen by the server and yields checkpoints matching the filter as they are executed. A checkpoint matches if any transaction it contains satisfies the filter.

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pub async fn subscribe_transactions( &mut self, request: impl IntoRequest<SubscribeTransactionsRequest>, ) -> Result<Response<Streaming<SubscribeTransactionsResponse>>, Status>

Subscribe to the stream of transactions.

The stream begins at the latest executed checkpoint as seen by the server and yields transactions matching the filter as they are executed.

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pub async fn subscribe_events( &mut self, request: impl IntoRequest<SubscribeEventsRequest>, ) -> Result<Response<Streaming<SubscribeEventsResponse>>, Status>

Subscribe to the stream of events.

The stream begins at the latest executed checkpoint as seen by the server and yields events matching the filter as they are emitted.

Trait Implementations§

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impl<T: Clone> Clone for SubscriptionServiceClient<T>

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

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<T: Debug> Debug for SubscriptionServiceClient<T>

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

Formats the value using the given formatter. Read more

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