feat: add nodata

Signed-off-by: kjuulh <contact@kjuulh.io>

Cargo.toml

@@ -11,34 +11,46 @@ crunch-traits = { path = "crates/crunch-traits" }
 crunch-envelope = { path = "crates/crunch-envelope" }
 crunch-in-memory = { path = "crates/crunch-in-memory" }
 crunch-nats = { path = "crates/crunch-nats" }
-crunch-file = {path = "crates/crunch-file"}
+crunch-file = { path = "crates/crunch-file" }
-crunch-codegen = {path = "crates/crunch-codegen"}
+crunch-codegen = { path = "crates/crunch-codegen" }
-crunch-postgres = {path = "crates/crunch-postgres"}
+crunch-postgres = { path = "crates/crunch-postgres" }
+crunch-nodata = { path = "crates/crunch-nodata" }
 
 anyhow = { version = "1.0.75" }
 tokio = { version = "1", features = ["full"] }
-tokio-stream = {version = "0.1.14"}
+tokio-stream = { version = "0.1.14" }
 tracing = { version = "0.1", features = ["log"] }
 tracing-subscriber = "0.3.17"
-thiserror = {version = "1.0.48"}
+thiserror = { version = "1.0.48" }
 async-trait = "0.1.73"
-uuid = { version = "1.4.1", features = ["v4", "serde"]}
+uuid = { version = "1.4.1", features = ["v4", "serde"] }
 futures = "0.3.28"
 nats = "0.24.0"
-clap = {version = "4.4.5", features = ["derive"]}
+clap = { version = "4.4.5", features = ["derive"] }
-toml_edit = {version = "0.20.0",features = ["serde"]}
+toml_edit = { version = "0.20.0", features = ["serde"] }
-serde = {version = "1.0.188", features = ["derive"]}
+serde = { version = "1.0.188", features = ["derive"] }
-serde_json = {version = "1.0.107"}
+serde_json = { version = "1.0.107" }
-prost = {version  = "0.12"}
+prost = { version = "0.13" }
-prost-types = {version = "0.12"}
+prost-types = { version = "0.13" }
 prost-build = "0.12"
-bytes = {version = "1.5"}
+bytes = { version = "1.5" }
-tempfile = {version = "3.8.0"}
+tempfile = { version = "3.8.0" }
-genco = {version = "0.17.6"}
+genco = { version = "0.17.6" }
-walkdir = {version = "2.4.0"}
+walkdir = { version = "2.4.0" }
-regex = {version = "1.9.5"}
+regex = { version = "1.9.5" }
-inquire = {version = "0.6.2"}
+inquire = { version = "0.6.2" }
-sqlx = {version = "0.7.2", default-features = false, features = ["migrate", "macros", "postgres", "runtime-tokio", "tls-rustls", "chrono", "json", "uuid" ]}
+sqlx = { version = "0.7.2", default-features = false, features = [
-chrono = {version = "0.4.31", features = ["serde"]}
+  "migrate",
+  "macros",
+  "postgres",
+  "runtime-tokio",
+  "tls-rustls",
+  "chrono",
+  "json",
+  "uuid",
+] }
+chrono = { version = "0.4.31", features = ["serde"] }
+nodata = { version = "0.1.0" }
+tonic = { version = "0.12.3", features = ["tls", "tls-roots"] }
 
-pretty_assertions = "1.4.0"
+pretty_assertions = "1.4.0"

crates/crunch-envelope/src/generated/crunch.envelope.rs

@@ -1,3 +1,4 @@
+// This file is @generated by prost-build.
 #[allow(clippy::derive_partial_eq_without_eq)]
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct Envelope {

crates/crunch-envelope/src/lib.rs

@@ -32,8 +32,8 @@ pub mod capnp {
         envelope.set_content(content);
 
         let mut metadata = envelope.init_metadata();
-        metadata.set_domain(domain);
+        metadata.set_domain(domain.into());
-        metadata.set_entity(entity);
+        metadata.set_entity(entity.into());
 
         serialize::write_message_to_words(&builder)
     }
@@ -56,11 +56,13 @@ pub mod capnp {
                 domain: metadata
                     .get_domain()
                     .map_err(EnvelopeError::CapnpError)?
-                    .to_string(),
+                    .to_string()
+                    .expect("message to be utf8"),
                 entity: metadata
                     .get_entity()
                     .map_err(EnvelopeError::CapnpError)?
-                    .to_string(),
+                    .to_string()
+                    .expect("message to be utf8"),
             },
         ))
     }

crates/crunch-nodata/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "crunch-nodata"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+crunch-traits.workspace = true
+
+prost.workspace = true
+prost-types.workspace = true
+bytes.workspace = true
+tonic.workspace = true
+anyhow.workspace = true
+tracing.workspace = true
+tokio.workspace = true
+thiserror.workspace = true
+async-trait.workspace = true
+futures.workspace = true

crates/crunch-nodata/buf.gen.yaml

@@ -0,0 +1,13 @@
+version: v2
+managed:
+  enabled: true
+plugins:
+  # dependencies
+- remote: buf.build/community/neoeinstein-prost
+  out: src/gen
+- remote: buf.build/community/neoeinstein-tonic
+  out: src/gen
+  
+inputs:
+  - module: buf.build/noschemaplz/nodata:main
+

crates/crunch-nodata/src/gen/nodata.v1.rs

@@ -0,0 +1,62 @@
+// @generated
+// This file is @generated by prost-build.
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct PublishEventRequest {
+    #[prost(string, tag="1")]
+    pub topic: ::prost::alloc::string::String,
+    #[prost(bytes="vec", tag="2")]
+    pub value: ::prost::alloc::vec::Vec<u8>,
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct PublishEventResponse {
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct GetTopicsRequest {
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct GetTopicsResponse {
+    #[prost(string, repeated, tag="1")]
+    pub topics: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct SubscribeRequest {
+    #[prost(string, tag="1")]
+    pub topic: ::prost::alloc::string::String,
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct SubscribeResponse {
+    #[prost(message, optional, tag="2")]
+    pub published: ::core::option::Option<::prost_types::Timestamp>,
+    #[prost(bytes="vec", tag="4")]
+    pub value: ::prost::alloc::vec::Vec<u8>,
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct HandleMsgRequest {
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct HandleMsgResponse {
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct PingRequest {
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct PingResponse {
+}
+#[allow(clippy::derive_partial_eq_without_eq)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Log {
+    #[prost(bytes="vec", repeated, tag="1")]
+    pub messages: ::prost::alloc::vec::Vec<::prost::alloc::vec::Vec<u8>>,
+}
+include!("nodata.v1.tonic.rs");
+// @@protoc_insertion_point(module)

crates/crunch-nodata/src/gen/nodata.v1.tonic.rs

@@ -0,0 +1,799 @@
+// @generated
+/// Generated client implementations.
+pub mod no_data_service_client {
+    #![allow(unused_variables, dead_code, missing_docs, clippy::let_unit_value)]
+    use tonic::codegen::*;
+    use tonic::codegen::http::Uri;
+    #[derive(Debug, Clone)]
+    pub struct NoDataServiceClient<T> {
+        inner: tonic::client::Grpc<T>,
+    }
+    impl NoDataServiceClient<tonic::transport::Channel> {
+        /// Attempt to create a new client by connecting to a given endpoint.
+        pub async fn connect<D>(dst: D) -> Result<Self, tonic::transport::Error>
+        where
+            D: TryInto<tonic::transport::Endpoint>,
+            D::Error: Into<StdError>,
+        {
+            let conn = tonic::transport::Endpoint::new(dst)?.connect().await?;
+            Ok(Self::new(conn))
+        }
+    }
+    impl<T> NoDataServiceClient<T>
+    where
+        T: tonic::client::GrpcService<tonic::body::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 {
+            let inner = tonic::client::Grpc::new(inner);
+            Self { inner }
+        }
+        pub fn with_origin(inner: T, origin: Uri) -> Self {
+            let inner = tonic::client::Grpc::with_origin(inner, origin);
+            Self { inner }
+        }
+        pub fn with_interceptor<F>(
+            inner: T,
+            interceptor: F,
+        ) -> NoDataServiceClient<InterceptedService<T, F>>
+        where
+            F: tonic::service::Interceptor,
+            T::ResponseBody: Default,
+            T: tonic::codegen::Service<
+                http::Request<tonic::body::BoxBody>,
+                Response = http::Response<
+                    <T as tonic::client::GrpcService<tonic::body::BoxBody>>::ResponseBody,
+                >,
+            >,
+            <T as tonic::codegen::Service<
+                http::Request<tonic::body::BoxBody>,
+            >>::Error: Into<StdError> + Send + Sync,
+        {
+            NoDataServiceClient::new(InterceptedService::new(inner, interceptor))
+        }
+        /// Compress requests with the given encoding.
+        ///
+        /// This requires the server to support it otherwise it might respond with an
+        /// error.
+        #[must_use]
+        pub fn send_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.send_compressed(encoding);
+            self
+        }
+        /// Enable decompressing responses.
+        #[must_use]
+        pub fn accept_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.accept_compressed(encoding);
+            self
+        }
+        /// Limits the maximum size of a decoded message.
+        ///
+        /// Default: `4MB`
+        #[must_use]
+        pub fn max_decoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_decoding_message_size(limit);
+            self
+        }
+        /// Limits the maximum size of an encoded message.
+        ///
+        /// Default: `usize::MAX`
+        #[must_use]
+        pub fn max_encoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_encoding_message_size(limit);
+            self
+        }
+        pub async fn publish_event(
+            &mut self,
+            request: impl tonic::IntoRequest<super::PublishEventRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::PublishEventResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::new(
+                        tonic::Code::Unknown,
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/nodata.v1.NoDataService/PublishEvent",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(GrpcMethod::new("nodata.v1.NoDataService", "PublishEvent"));
+            self.inner.unary(req, path, codec).await
+        }
+        pub async fn get_topics(
+            &mut self,
+            request: impl tonic::IntoRequest<super::GetTopicsRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::GetTopicsResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::new(
+                        tonic::Code::Unknown,
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/nodata.v1.NoDataService/GetTopics",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(GrpcMethod::new("nodata.v1.NoDataService", "GetTopics"));
+            self.inner.unary(req, path, codec).await
+        }
+        pub async fn subscribe(
+            &mut self,
+            request: impl tonic::IntoRequest<super::SubscribeRequest>,
+        ) -> std::result::Result<
+            tonic::Response<tonic::codec::Streaming<super::SubscribeResponse>>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::new(
+                        tonic::Code::Unknown,
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/nodata.v1.NoDataService/Subscribe",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(GrpcMethod::new("nodata.v1.NoDataService", "Subscribe"));
+            self.inner.server_streaming(req, path, codec).await
+        }
+    }
+}
+/// Generated server implementations.
+pub mod no_data_service_server {
+    #![allow(unused_variables, dead_code, missing_docs, clippy::let_unit_value)]
+    use tonic::codegen::*;
+    /// Generated trait containing gRPC methods that should be implemented for use with NoDataServiceServer.
+    #[async_trait]
+    pub trait NoDataService: Send + Sync + 'static {
+        async fn publish_event(
+            &self,
+            request: tonic::Request<super::PublishEventRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::PublishEventResponse>,
+            tonic::Status,
+        >;
+        async fn get_topics(
+            &self,
+            request: tonic::Request<super::GetTopicsRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::GetTopicsResponse>,
+            tonic::Status,
+        >;
+        /// Server streaming response type for the Subscribe method.
+        type SubscribeStream: tonic::codegen::tokio_stream::Stream<
+                Item = std::result::Result<super::SubscribeResponse, tonic::Status>,
+            >
+            + Send
+            + 'static;
+        async fn subscribe(
+            &self,
+            request: tonic::Request<super::SubscribeRequest>,
+        ) -> std::result::Result<tonic::Response<Self::SubscribeStream>, tonic::Status>;
+    }
+    #[derive(Debug)]
+    pub struct NoDataServiceServer<T: NoDataService> {
+        inner: Arc<T>,
+        accept_compression_encodings: EnabledCompressionEncodings,
+        send_compression_encodings: EnabledCompressionEncodings,
+        max_decoding_message_size: Option<usize>,
+        max_encoding_message_size: Option<usize>,
+    }
+    impl<T: NoDataService> NoDataServiceServer<T> {
+        pub fn new(inner: T) -> Self {
+            Self::from_arc(Arc::new(inner))
+        }
+        pub fn from_arc(inner: Arc<T>) -> Self {
+            Self {
+                inner,
+                accept_compression_encodings: Default::default(),
+                send_compression_encodings: Default::default(),
+                max_decoding_message_size: None,
+                max_encoding_message_size: None,
+            }
+        }
+        pub fn with_interceptor<F>(
+            inner: T,
+            interceptor: F,
+        ) -> InterceptedService<Self, F>
+        where
+            F: tonic::service::Interceptor,
+        {
+            InterceptedService::new(Self::new(inner), interceptor)
+        }
+        /// Enable decompressing requests with the given encoding.
+        #[must_use]
+        pub fn accept_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.accept_compression_encodings.enable(encoding);
+            self
+        }
+        /// Compress responses with the given encoding, if the client supports it.
+        #[must_use]
+        pub fn send_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.send_compression_encodings.enable(encoding);
+            self
+        }
+        /// Limits the maximum size of a decoded message.
+        ///
+        /// Default: `4MB`
+        #[must_use]
+        pub fn max_decoding_message_size(mut self, limit: usize) -> Self {
+            self.max_decoding_message_size = Some(limit);
+            self
+        }
+        /// Limits the maximum size of an encoded message.
+        ///
+        /// Default: `usize::MAX`
+        #[must_use]
+        pub fn max_encoding_message_size(mut self, limit: usize) -> Self {
+            self.max_encoding_message_size = Some(limit);
+            self
+        }
+    }
+    impl<T, B> tonic::codegen::Service<http::Request<B>> for NoDataServiceServer<T>
+    where
+        T: NoDataService,
+        B: Body + Send + 'static,
+        B::Error: Into<StdError> + Send + 'static,
+    {
+        type Response = http::Response<tonic::body::BoxBody>;
+        type Error = std::convert::Infallible;
+        type Future = BoxFuture<Self::Response, Self::Error>;
+        fn poll_ready(
+            &mut self,
+            _cx: &mut Context<'_>,
+        ) -> Poll<std::result::Result<(), Self::Error>> {
+            Poll::Ready(Ok(()))
+        }
+        fn call(&mut self, req: http::Request<B>) -> Self::Future {
+            match req.uri().path() {
+                "/nodata.v1.NoDataService/PublishEvent" => {
+                    #[allow(non_camel_case_types)]
+                    struct PublishEventSvc<T: NoDataService>(pub Arc<T>);
+                    impl<
+                        T: NoDataService,
+                    > tonic::server::UnaryService<super::PublishEventRequest>
+                    for PublishEventSvc<T> {
+                        type Response = super::PublishEventResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::PublishEventRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as NoDataService>::publish_event(&inner, request).await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = PublishEventSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/nodata.v1.NoDataService/GetTopics" => {
+                    #[allow(non_camel_case_types)]
+                    struct GetTopicsSvc<T: NoDataService>(pub Arc<T>);
+                    impl<
+                        T: NoDataService,
+                    > tonic::server::UnaryService<super::GetTopicsRequest>
+                    for GetTopicsSvc<T> {
+                        type Response = super::GetTopicsResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::GetTopicsRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as NoDataService>::get_topics(&inner, request).await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = GetTopicsSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/nodata.v1.NoDataService/Subscribe" => {
+                    #[allow(non_camel_case_types)]
+                    struct SubscribeSvc<T: NoDataService>(pub Arc<T>);
+                    impl<
+                        T: NoDataService,
+                    > tonic::server::ServerStreamingService<super::SubscribeRequest>
+                    for SubscribeSvc<T> {
+                        type Response = super::SubscribeResponse;
+                        type ResponseStream = T::SubscribeStream;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::ResponseStream>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::SubscribeRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as NoDataService>::subscribe(&inner, request).await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = SubscribeSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.server_streaming(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                _ => {
+                    Box::pin(async move {
+                        Ok(
+                            http::Response::builder()
+                                .status(200)
+                                .header("grpc-status", tonic::Code::Unimplemented as i32)
+                                .header(
+                                    http::header::CONTENT_TYPE,
+                                    tonic::metadata::GRPC_CONTENT_TYPE,
+                                )
+                                .body(empty_body())
+                                .unwrap(),
+                        )
+                    })
+                }
+            }
+        }
+    }
+    impl<T: NoDataService> Clone for NoDataServiceServer<T> {
+        fn clone(&self) -> Self {
+            let inner = self.inner.clone();
+            Self {
+                inner,
+                accept_compression_encodings: self.accept_compression_encodings,
+                send_compression_encodings: self.send_compression_encodings,
+                max_decoding_message_size: self.max_decoding_message_size,
+                max_encoding_message_size: self.max_encoding_message_size,
+            }
+        }
+    }
+    impl<T: NoDataService> tonic::server::NamedService for NoDataServiceServer<T> {
+        const NAME: &'static str = "nodata.v1.NoDataService";
+    }
+}
+/// Generated client implementations.
+pub mod no_data_component_client {
+    #![allow(unused_variables, dead_code, missing_docs, clippy::let_unit_value)]
+    use tonic::codegen::*;
+    use tonic::codegen::http::Uri;
+    ///
+    #[derive(Debug, Clone)]
+    pub struct NoDataComponentClient<T> {
+        inner: tonic::client::Grpc<T>,
+    }
+    impl NoDataComponentClient<tonic::transport::Channel> {
+        /// Attempt to create a new client by connecting to a given endpoint.
+        pub async fn connect<D>(dst: D) -> Result<Self, tonic::transport::Error>
+        where
+            D: TryInto<tonic::transport::Endpoint>,
+            D::Error: Into<StdError>,
+        {
+            let conn = tonic::transport::Endpoint::new(dst)?.connect().await?;
+            Ok(Self::new(conn))
+        }
+    }
+    impl<T> NoDataComponentClient<T>
+    where
+        T: tonic::client::GrpcService<tonic::body::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 {
+            let inner = tonic::client::Grpc::new(inner);
+            Self { inner }
+        }
+        pub fn with_origin(inner: T, origin: Uri) -> Self {
+            let inner = tonic::client::Grpc::with_origin(inner, origin);
+            Self { inner }
+        }
+        pub fn with_interceptor<F>(
+            inner: T,
+            interceptor: F,
+        ) -> NoDataComponentClient<InterceptedService<T, F>>
+        where
+            F: tonic::service::Interceptor,
+            T::ResponseBody: Default,
+            T: tonic::codegen::Service<
+                http::Request<tonic::body::BoxBody>,
+                Response = http::Response<
+                    <T as tonic::client::GrpcService<tonic::body::BoxBody>>::ResponseBody,
+                >,
+            >,
+            <T as tonic::codegen::Service<
+                http::Request<tonic::body::BoxBody>,
+            >>::Error: Into<StdError> + Send + Sync,
+        {
+            NoDataComponentClient::new(InterceptedService::new(inner, interceptor))
+        }
+        /// Compress requests with the given encoding.
+        ///
+        /// This requires the server to support it otherwise it might respond with an
+        /// error.
+        #[must_use]
+        pub fn send_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.send_compressed(encoding);
+            self
+        }
+        /// Enable decompressing responses.
+        #[must_use]
+        pub fn accept_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.accept_compressed(encoding);
+            self
+        }
+        /// Limits the maximum size of a decoded message.
+        ///
+        /// Default: `4MB`
+        #[must_use]
+        pub fn max_decoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_decoding_message_size(limit);
+            self
+        }
+        /// Limits the maximum size of an encoded message.
+        ///
+        /// Default: `usize::MAX`
+        #[must_use]
+        pub fn max_encoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_encoding_message_size(limit);
+            self
+        }
+        ///
+        pub async fn transform_msg(
+            &mut self,
+            request: impl tonic::IntoRequest<super::HandleMsgRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::HandleMsgResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::new(
+                        tonic::Code::Unknown,
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/nodata.v1.NoDataComponent/TransformMsg",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(GrpcMethod::new("nodata.v1.NoDataComponent", "TransformMsg"));
+            self.inner.unary(req, path, codec).await
+        }
+        ///
+        pub async fn ping(
+            &mut self,
+            request: impl tonic::IntoRequest<super::PingRequest>,
+        ) -> std::result::Result<tonic::Response<super::PingResponse>, tonic::Status> {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::new(
+                        tonic::Code::Unknown,
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/nodata.v1.NoDataComponent/Ping",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(GrpcMethod::new("nodata.v1.NoDataComponent", "Ping"));
+            self.inner.unary(req, path, codec).await
+        }
+    }
+}
+/// Generated server implementations.
+pub mod no_data_component_server {
+    #![allow(unused_variables, dead_code, missing_docs, clippy::let_unit_value)]
+    use tonic::codegen::*;
+    /// Generated trait containing gRPC methods that should be implemented for use with NoDataComponentServer.
+    #[async_trait]
+    pub trait NoDataComponent: Send + Sync + 'static {
+        ///
+        async fn transform_msg(
+            &self,
+            request: tonic::Request<super::HandleMsgRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::HandleMsgResponse>,
+            tonic::Status,
+        >;
+        ///
+        async fn ping(
+            &self,
+            request: tonic::Request<super::PingRequest>,
+        ) -> std::result::Result<tonic::Response<super::PingResponse>, tonic::Status>;
+    }
+    ///
+    #[derive(Debug)]
+    pub struct NoDataComponentServer<T: NoDataComponent> {
+        inner: Arc<T>,
+        accept_compression_encodings: EnabledCompressionEncodings,
+        send_compression_encodings: EnabledCompressionEncodings,
+        max_decoding_message_size: Option<usize>,
+        max_encoding_message_size: Option<usize>,
+    }
+    impl<T: NoDataComponent> NoDataComponentServer<T> {
+        pub fn new(inner: T) -> Self {
+            Self::from_arc(Arc::new(inner))
+        }
+        pub fn from_arc(inner: Arc<T>) -> Self {
+            Self {
+                inner,
+                accept_compression_encodings: Default::default(),
+                send_compression_encodings: Default::default(),
+                max_decoding_message_size: None,
+                max_encoding_message_size: None,
+            }
+        }
+        pub fn with_interceptor<F>(
+            inner: T,
+            interceptor: F,
+        ) -> InterceptedService<Self, F>
+        where
+            F: tonic::service::Interceptor,
+        {
+            InterceptedService::new(Self::new(inner), interceptor)
+        }
+        /// Enable decompressing requests with the given encoding.
+        #[must_use]
+        pub fn accept_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.accept_compression_encodings.enable(encoding);
+            self
+        }
+        /// Compress responses with the given encoding, if the client supports it.
+        #[must_use]
+        pub fn send_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.send_compression_encodings.enable(encoding);
+            self
+        }
+        /// Limits the maximum size of a decoded message.
+        ///
+        /// Default: `4MB`
+        #[must_use]
+        pub fn max_decoding_message_size(mut self, limit: usize) -> Self {
+            self.max_decoding_message_size = Some(limit);
+            self
+        }
+        /// Limits the maximum size of an encoded message.
+        ///
+        /// Default: `usize::MAX`
+        #[must_use]
+        pub fn max_encoding_message_size(mut self, limit: usize) -> Self {
+            self.max_encoding_message_size = Some(limit);
+            self
+        }
+    }
+    impl<T, B> tonic::codegen::Service<http::Request<B>> for NoDataComponentServer<T>
+    where
+        T: NoDataComponent,
+        B: Body + Send + 'static,
+        B::Error: Into<StdError> + Send + 'static,
+    {
+        type Response = http::Response<tonic::body::BoxBody>;
+        type Error = std::convert::Infallible;
+        type Future = BoxFuture<Self::Response, Self::Error>;
+        fn poll_ready(
+            &mut self,
+            _cx: &mut Context<'_>,
+        ) -> Poll<std::result::Result<(), Self::Error>> {
+            Poll::Ready(Ok(()))
+        }
+        fn call(&mut self, req: http::Request<B>) -> Self::Future {
+            match req.uri().path() {
+                "/nodata.v1.NoDataComponent/TransformMsg" => {
+                    #[allow(non_camel_case_types)]
+                    struct TransformMsgSvc<T: NoDataComponent>(pub Arc<T>);
+                    impl<
+                        T: NoDataComponent,
+                    > tonic::server::UnaryService<super::HandleMsgRequest>
+                    for TransformMsgSvc<T> {
+                        type Response = super::HandleMsgResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::HandleMsgRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as NoDataComponent>::transform_msg(&inner, request).await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = TransformMsgSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/nodata.v1.NoDataComponent/Ping" => {
+                    #[allow(non_camel_case_types)]
+                    struct PingSvc<T: NoDataComponent>(pub Arc<T>);
+                    impl<
+                        T: NoDataComponent,
+                    > tonic::server::UnaryService<super::PingRequest> for PingSvc<T> {
+                        type Response = super::PingResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::PingRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as NoDataComponent>::ping(&inner, request).await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = PingSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                _ => {
+                    Box::pin(async move {
+                        Ok(
+                            http::Response::builder()
+                                .status(200)
+                                .header("grpc-status", tonic::Code::Unimplemented as i32)
+                                .header(
+                                    http::header::CONTENT_TYPE,
+                                    tonic::metadata::GRPC_CONTENT_TYPE,
+                                )
+                                .body(empty_body())
+                                .unwrap(),
+                        )
+                    })
+                }
+            }
+        }
+    }
+    impl<T: NoDataComponent> Clone for NoDataComponentServer<T> {
+        fn clone(&self) -> Self {
+            let inner = self.inner.clone();
+            Self {
+                inner,
+                accept_compression_encodings: self.accept_compression_encodings,
+                send_compression_encodings: self.send_compression_encodings,
+                max_decoding_message_size: self.max_decoding_message_size,
+                max_encoding_message_size: self.max_encoding_message_size,
+            }
+        }
+    }
+    impl<T: NoDataComponent> tonic::server::NamedService for NoDataComponentServer<T> {
+        const NAME: &'static str = "nodata.v1.NoDataComponent";
+    }
+}

crates/crunch-nodata/src/grpc.rs

@@ -0,0 +1 @@
+include!("gen/nodata.v1.rs");

crates/crunch-nodata/src/lib.rs

@@ -0,0 +1,109 @@
+use std::pin::Pin;
+
+use anyhow::Context;
+use async_trait::async_trait;
+use crunch_traits::{errors::TransportError, EventInfo, Transport};
+use futures::{Stream, StreamExt};
+use grpc::{no_data_service_client::NoDataServiceClient, PublishEventRequest, SubscribeRequest};
+use tonic::transport::{Channel, ClientTlsConfig};
+
+mod grpc;
+
+pub struct NoDataTransport {
+    host: String,
+}
+
+impl NoDataTransport {
+    pub fn new(host: impl Into<String>) -> Self {
+        Self { host: host.into() }
+    }
+
+    async fn client(&self) -> anyhow::Result<NoDataServiceClient<tonic::transport::Channel>> {
+        let channel = if self.host.starts_with("https") {
+            Channel::from_shared(self.host.to_owned())
+                .context(format!("failed to connect to: {}", &self.host))?
+                .tls_config(ClientTlsConfig::new().with_native_roots())?
+                .connect()
+                .await
+                .context(format!("failed to connect to: {}", &self.host))?
+        } else {
+            Channel::from_shared(self.host.to_owned())
+                .context(format!("failed to connect to: {}", &self.host))?
+                .connect()
+                .await
+                .context(format!("failed to connect to: {}", &self.host))?
+        };
+
+        let client = NoDataServiceClient::new(channel);
+
+        Ok(client)
+    }
+}
+
+#[async_trait]
+impl Transport for NoDataTransport {
+    type Stream = Pin<Box<dyn Stream<Item = Vec<u8>> + Send>>;
+
+    async fn publish(
+        &self,
+        event_info: &EventInfo,
+        content: Vec<u8>,
+    ) -> Result<(), TransportError> {
+        let mut client = self.client().await.map_err(TransportError::Err)?;
+
+        client
+            .publish_event(PublishEventRequest {
+                topic: event_info.transport_name(),
+                value: content,
+            })
+            .await
+            .context("failed to send crunch(nodata) message")
+            .map_err(TransportError::Err)?;
+
+        Ok(())
+    }
+    async fn subscriber(
+        &self,
+        event_info: &EventInfo,
+    ) -> Result<Option<Self::Stream>, TransportError> {
+        let mut client = self.client().await.map_err(TransportError::Err)?;
+
+        let resp_stream = client
+            .subscribe(SubscribeRequest {
+                topic: event_info.transport_name(),
+            })
+            .await
+            .context("failed to establish connection to nodata")
+            .map_err(TransportError::Err)?;
+
+        let sub = resp_stream.into_inner();
+
+        let stream = futures::stream::unfold(sub, |mut sub| async move {
+            tracing::trace!("got event from nodata");
+            let next = sub.next().await?;
+
+            match next {
+                Ok(next) => Some((next.value, sub)),
+                Err(e) => {
+                    tracing::error!("failed to receive event from nodata: {e}");
+                    None
+                }
+            }
+        });
+
+        Ok(Some(Box::pin(stream)))
+    }
+}
+
+trait EventInfoExt {
+    fn transport_name(&self) -> String;
+}
+
+impl EventInfoExt for EventInfo {
+    fn transport_name(&self) -> String {
+        format!(
+            "crunch.{}.{}.{}",
+            self.domain, self.entity_type, self.event_name
+        )
+    }
+}

crates/crunch/Cargo.toml

@@ -7,7 +7,8 @@ edition = "2021"
 crunch-envelope.workspace = true
 crunch-in-memory = { workspace = true, optional = true }
 crunch-traits.workspace = true
-crunch-nats = {workspace = true,optional = true}
+crunch-nats = { workspace = true, optional = true }
+crunch-nodata = { workspace = true, optional = true }
 
 anyhow.workspace = true
 tracing.workspace = true
@@ -22,7 +23,8 @@ futures.workspace = true
 tracing-subscriber.workspace = true
 
 [features]
-default = ["in-memory", "traits", "nats"]
+default = ["in-memory", "traits"]
 traits = []
 in-memory = ["dep:crunch-in-memory"]
-nats = ["dep:crunch-nats"]
+nats = ["dep:crunch-nats"]
+nodata = ["dep:crunch-nodata"]

crates/crunch/src/lib.rs

@@ -89,6 +89,15 @@ mod builder {
             Ok(self)
         }
 
+        #[cfg(feature = "nodata")]
+        pub async fn with_nodata_transport(
+            &mut self,
+            host: &str,
+        ) -> Result<&mut Self, crunch_traits::errors::TransportError> {
+            self.transport = Some(Transport::nodata(host)?);
+            Ok(self)
+        }
+
         pub fn with_outbox(&mut self, enabled: bool) -> &mut Self {
             self.outbox_enabled = enabled;
             self

crates/crunch/src/transport.rs

@@ -23,6 +23,13 @@ impl Transport {
             crunch_nats::NatsTransport::new(options).await?,
         )))
     }
+
+    #[cfg(feature = "nodata")]
+    pub fn nodata(host: &str) -> Result<Self, crunch_traits::errors::TransportError> {
+        Ok(Self(std::sync::Arc::new(
+            crunch_nodata::NoDataTransport::new(host),
+        )))
+    }
 }
 
 impl From<DynTransport> for Transport {