pub async fn connect_persistent_subscription<S: AsRef<str>>(
    connection: &GrpcClient,
    stream_id: S,
    group_name: S,
    options: &ConnectToPersistentSubscription,
) -> crate::Result<(SubscriptionRead, SubscriptionWrite)> {
    use futures::channel::mpsc;
    use futures::sink::SinkExt;
    use persistent::read_req::options::{self, UuidOption};
    use persistent::read_req::{self, options::StreamOption, Options};
    use persistent::read_resp;
    use persistent::ReadReq;

    let (mut sender, recv) = mpsc::channel(500);

    let uuid_option = UuidOption {
        content: Some(options::uuid_option::Content::String(Empty {})),
    };

    let stream_identifier = StreamIdentifier {
        stream_name: stream_id.as_ref().to_string().into_bytes(),
    };

    let stream_option = StreamOption::StreamIdentifier(stream_identifier);
    let stream_option = Some(stream_option);

    let credentials = options
        .credentials
        .clone()
        .or_else(|| connection.default_credentials());

    let options = Options {
        stream_option,
        group_name: group_name.as_ref().to_string(),
        buffer_size: options.batch_size as i32,
        uuid_option: Some(uuid_option),
    };

    let read_req = ReadReq {
        content: Some(read_req::Content::Options(options)),
    };

    let mut req = Request::new(recv);

    configure_auth_req(&mut req, credentials);

    let _ = sender.send(read_req).await;

    connection
        .execute(|channel| async {
            let mut client = PersistentSubscriptionsClient::new(channel.channel.clone());
            let mut stream = client.read(req).await?.into_inner();

            let stream = stream! {
                loop {
                    match stream.try_next().await {
                        Err(e) => {
                            let e = crate::Error::from_grpc(e);

                            channel.report_error(e.clone()).await;
                            yield Err(e);
                            break;
                        }

                        Ok(resp) => {
                            if let Some(resp) = resp {
                                match resp.content.expect("content is defined") {
                                    read_resp::Content::Event(event) => {
                                        yield Ok(SubEvent::EventAppeared(convert_persistent_proto_read_event(event)));
                                    }

                                    read_resp::Content::SubscriptionConfirmation(sub) => {
                                        yield Ok(SubEvent::Confirmed(sub.subscription_id));
                                    }
                                }
                                continue;
                            }

                            break;
                        }
                    }
                }
            };

            let read = SubscriptionRead {
                inner: Box::pin(stream),
            };
            let write = SubscriptionWrite { sender };

            Ok((read, write))
        })
        .await
}
/// Sends the persistent subscription connection request to the server
/// asynchronously even if the subscription is available right away.
Sends the persistent subscription connection request to the server
asynchronously even if the subscription is available right away.
Sends the persistent subscription connection request to the server asynchronously even if the subscription is available right away .
pub async fn connect_persistent_subscription<S: AsRef<str>>(
    connection: &GrpcClient,
    stream_id: S,
    group_name: S,
    options: &ConnectToPersistentSubscription,
) -> crate::Result<(SubscriptionRead, SubscriptionWrite)> {
    use futures::channel::mpsc;
    use futures::sink::SinkExt;
    use persistent::read_req::options::{self, UuidOption};
    use persistent::read_req::{self, options::StreamOption, Options};
    use persistent::read_resp;
    use persistent::ReadReq;
    let (mut sender, recv) = mpsc::channel(500);
    let uuid_option = UuidOption {
        content: Some(options::uuid_option::Content::String(Empty {})),
    };
    let stream_identifier = StreamIdentifier {
        stream_name: stream_id.as_ref().to_string().into_bytes(),
    };
    let stream_option = StreamOption::StreamIdentifier(stream_identifier);
    let stream_option = Some(stream_option);
    let credentials = options
        .credentials
        .clone()
        .or_else(|| connection.default_credentials());
    let options = Options {
        stream_option,
        group_name: group_name.as_ref().to_string(),
        buffer_size: options.batch_size as i32,
        uuid_option: Some(uuid_option),
    };
    let read_req = ReadReq {
        content: Some(read_req::Content::Options(options)),
    };
    let mut req = Request::new(recv);
    configure_auth_req(&mut req, credentials);
    let _ = sender.send(read_req).await;
    connection
        .execute(|channel| async {
            let mut client = PersistentSubscriptionsClient::new(channel.channel.clone());
            let mut stream = client.read(req).await?.into_inner();
            let stream = stream! {
                loop {
                    match stream.try_next().await {
                        Err(e) => {
                            let e = crate::Error::from_grpc(e);
                            channel.report_error(e.clone()).await;
                            yield Err(e);
                            break;
                        }
                        Ok(resp) => {
                            if let Some(resp) = resp {
                                match resp.content.expect("content is defined") {
                                    read_resp::Content::Event(event) => {
                                        yield Ok(SubEvent::EventAppeared(convert_persistent_proto_read_event(event)));
                                    }
                                    read_resp::Content::SubscriptionConfirmation(sub) => {
                                        yield Ok(SubEvent::Confirmed(sub.subscription_id));
                                    }
                                }
                                continue;
                            }
                            break;
                        }
                    }
                }
            };
            let read = SubscriptionRead {
                inner: Box::pin(stream),
            };
            let write = SubscriptionWrite { sender };
            Ok((read, write))
        })
        .await
}
pub async fn connect_persistent_subscription < S : AsRef < str > > ( connection : & GrpcClient , stream_id : S , group_name : S , options : & ConnectToPersistentSubscription , ) -> crate :: Result < ( SubscriptionRead , SubscriptionWrite ) > { use futures :: channel :: mpsc ; use futures :: sink :: SinkExt ; use persistent :: read_req :: options :: { self , UuidOption } ; use persistent :: read_req :: { self , options :: StreamOption , Options } ; use persistent :: read_resp ; use persistent :: ReadReq ; let ( mut sender , recv ) = mpsc :: channel ( 500 ) ; let uuid_option = UuidOption { content : Some ( options :: uuid_option :: Content :: String ( Empty { } ) ) , } ; let stream_identifier = StreamIdentifier { stream_name : stream_id . as_ref ( ) . to_string ( ) . into_bytes ( ) , } ; let stream_option = StreamOption :: StreamIdentifier ( stream_identifier ) ; let stream_option = Some ( stream_option ) ; let credentials = options . credentials . clone ( ) . or_else ( | | connection . default_credentials ( ) ) ; let options = Options { stream_option , group_name : group_name . as_ref ( ) . to_string ( ) , buffer_size : options . batch_size as i32 , uuid_option : Some ( uuid_option ) , } ; let read_req = ReadReq { content : Some ( read_req :: Content :: Options ( options ) ) , } ; let mut req = Request :: new ( recv ) ; configure_auth_req ( & mut req , credentials ) ; let _ = sender . send ( read_req ) . await ; connection . execute ( | channel | async { let mut client = PersistentSubscriptionsClient :: new ( channel . channel . clone ( ) ) ; let mut stream = client . read ( req ) . await ? . into_inner ( ) ; let stream = stream ! { loop { match stream try_next ( ) await { Err ( e ) { let e crate Error from_grpc ( e ) channel report_error ( e clone ( ) ) await yield Err ( e ) break } Ok ( resp ) { if let Some ( resp ) resp { match resp content expect ( " " ) { read_resp Content Event ( event ) { yield Ok ( SubEvent EventAppeared ( convert_persistent_proto_read_event ( event ) ) ) } read_resp Content SubscriptionConfirmation ( sub ) { yield Ok ( SubEvent Confirmed ( sub subscription_id ) ) } } continue } break } } } } ; let read = SubscriptionRead { inner : Box :: pin ( stream ) , } ; let write = SubscriptionWrite { sender } ; Ok ( ( read , write ) ) } ) . await }
Sends the persistent subscription connection request to the server
asynchronously even if the subscription is available right away.
Sends the persistent subscription connection request to the server asynchronously even if the subscription is available right away .
connection
&GrpcClient
stream_id
S
group_name
S
options
&ConnectToPersistentSubscription
connection
&GrpcClient
stream_id
S
group_name
S
options
&ConnectToPersistentSubscription