Struct ethers_providers::SubscriptionStream
source · pub struct SubscriptionStream<'a, P: PubsubClient, R: DeserializeOwned> {
pub id: U256,
/* private fields */
}
Expand description
Streams data from an installed filter via eth_subscribe
Fields§
§id: U256
The subscription’s installed id on the ethereum node
Implementations§
source§impl<'a, P, R> SubscriptionStream<'a, P, R>where
P: PubsubClient,
R: DeserializeOwned,
impl<'a, P, R> SubscriptionStream<'a, P, R>where
P: PubsubClient,
R: DeserializeOwned,
sourcepub fn new(id: U256, provider: &'a Provider<P>) -> Result<Self, P::Error>
pub fn new(id: U256, provider: &'a Provider<P>) -> Result<Self, P::Error>
Creates a new subscription stream for the provided subscription id.
§Note
Most providers treat SubscriptionStream
IDs as global singletons.
Instantiating this directly with a known ID will likely cause any
existing streams with that ID to end. To avoid this, start a new stream
using Provider::subscribe
instead of SubscriptionStream::new
.
sourcepub async fn unsubscribe(&self) -> Result<bool, ProviderError>
pub async fn unsubscribe(&self) -> Result<bool, ProviderError>
Unsubscribes from the subscription.
sourcepub fn set_loaded_elements(&mut self, loaded_elements: VecDeque<R>)
pub fn set_loaded_elements(&mut self, loaded_elements: VecDeque<R>)
Set the loaded elements buffer. This buffer contains logs waiting for the consumer to read. Setting the buffer can be used to add logs without receiving them from the RPC node
§Warning
Setting the buffer will drop any logs in the current buffer.
source§impl<'a, P> SubscriptionStream<'a, P, TxHash>where
P: PubsubClient,
impl<'a, P> SubscriptionStream<'a, P, TxHash>where
P: PubsubClient,
sourcepub fn transactions_unordered(self, n: usize) -> TransactionStream<'a, P, Self>
pub fn transactions_unordered(self, n: usize) -> TransactionStream<'a, P, Self>
Returns a stream that yields the Transaction
s for the transaction hashes this stream
yields.
This internally calls Provider::get_transaction
with every new transaction.
No more than n futures will be buffered at any point in time, and less than n may also be
buffered depending on the state of each future.
Trait Implementations§
source§impl<'a, P: PubsubClient, R: DeserializeOwned> Drop for SubscriptionStream<'a, P, R>
impl<'a, P: PubsubClient, R: DeserializeOwned> Drop for SubscriptionStream<'a, P, R>
source§impl<'a, P, R> Stream for SubscriptionStream<'a, P, R>where
P: PubsubClient,
R: DeserializeOwned,
impl<'a, P, R> Stream for SubscriptionStream<'a, P, R>where
P: PubsubClient,
R: DeserializeOwned,
impl<'pin, 'a, P: PubsubClient, R: DeserializeOwned> Unpin for SubscriptionStream<'a, P, R>where
__SubscriptionStream<'pin, 'a, P, R>: Unpin,
Auto Trait Implementations§
impl<'a, P, R> !RefUnwindSafe for SubscriptionStream<'a, P, R>
impl<'a, P, R> Send for SubscriptionStream<'a, P, R>where
R: Send,
impl<'a, P, R> Sync for SubscriptionStream<'a, P, R>
impl<'a, P, R> !UnwindSafe for SubscriptionStream<'a, P, R>
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T: ?Sized,
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