76 lines
2.5 KiB
Rust
76 lines
2.5 KiB
Rust
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use futures::Stream;
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use grpc_binary_logger::{BinaryLoggerLayer, FileSink, NoReflection};
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use std::pin::Pin;
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use tonic::{metadata::MetadataValue, transport::Server, Request, Response, Status};
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use grpc_binary_logger_test_proto::{
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test_server::{self, TestServer},
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TestRequest, TestResponse,
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};
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#[derive(Debug, Clone, Copy)]
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pub struct TestService;
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type PinnedStream<T> = Pin<Box<dyn Stream<Item = Result<T, tonic::Status>> + Send>>;
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#[tonic::async_trait]
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impl test_server::Test for TestService {
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async fn test_unary(
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&self,
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request: Request<TestRequest>,
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) -> Result<Response<TestResponse>, Status> {
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let request = request.into_inner();
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if request.question == 42 {
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return Err(Status::invalid_argument("The Answer is not a question"));
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}
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let mut res = tonic::Response::new(TestResponse {
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answer: request.question + 1,
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});
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res.metadata_mut().insert(
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"my-server-header",
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MetadataValue::from_static("my-server-header-value"),
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);
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Ok(res)
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}
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type TestStreamStream = PinnedStream<TestResponse>;
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async fn test_stream(
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&self,
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request: Request<TestRequest>,
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) -> Result<Response<Self::TestStreamStream>, Status> {
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let request = request.into_inner();
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let it = (0..=request.question).map(|answer| Ok(TestResponse { answer }));
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Ok(tonic::Response::new(Box::pin(futures::stream::iter(it))))
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}
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}
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#[tokio::main(flavor = "current_thread")]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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let addr = "[::1]:50051".parse().unwrap();
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let service = TestService;
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println!("TestService listening on {}", addr);
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// Create a binary log sink that writes length delimited binary log entries.
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let file = std::fs::File::create("/tmp/grpcgo_binarylog.bin")?;
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let sink = FileSink::new(file);
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// Create a binary logger with a given sink.
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let binlog_layer = BinaryLoggerLayer::new(sink);
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// You can provide a custom predicate that selects requests that you want to be logged.
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// The default NoReflection predicate filters out all gRPC reflection chatter.
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let binlog_layer = binlog_layer.with_predicate(NoReflection);
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// You can provide a custom logger.
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let binlog_layer = binlog_layer.with_error_logger(|e| eprintln!("grpc binlog error: {:?}", e));
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Server::builder()
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.layer(binlog_layer)
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.add_service(TestServer::new(service))
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.serve(addr)
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.await?;
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Ok(())
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}
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