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docs/learning_grpc.md
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@ -995,9 +995,9 @@ impl OpenTelemetryTracingLayer {
note: note:
As we've mentioned, layers exist for better development experience, services could be layered manually. - We need the layer if we want to take advantage of the Tower's builder pattern
In this case we don't need any data to be added to the layer. - This layer doesn't need any data to be passed to the OpenTelemetry service
--- ---
## Tracing layer ## Tracing layer
@ -1025,10 +1025,6 @@ GrpcServer::builder()
.await?; .await?;
``` ```
note:
It is this simple :)
--- ---
## Extras ## Extras
@ -1045,13 +1041,10 @@ Tonic provides a health check service implementing a standard gRPC health checki
note: note:
A GRPC service is used as the health checking mechanism. - A GRPC service is used as the health checking mechanism.
- Doing a health check is in the same format as a normal rpc.
Since it is a GRPC service itself, doing a health check is in the same format as a normal rpc. - Per-service health monitoring
- The server has full control over the access of the health checking service.
It has rich semantics such as per-service health status.
The server has full control over the access of the health checking service.
--- ---
## Health service definition ## Health service definition
@ -1112,16 +1105,18 @@ GrpcServer::builder()
note: note:
Make it clear that we are using the `tonic-health` crate which doesn't come by default with `tonic`. - `tonic-health` has to be imported as a separate crate
--- ---
## Interceptors ## Interceptors
Interceptors are similar to middleware but with less flexibility. Interceptors are similar to middleware but with less flexibility.
They allow you to: They allow you to:
- Add/remove/check items in the metadata of each request.
- Cancel a request with a `Status`. - **Add/remove/check** items in the metadata of each request.
- **Cancel** a request with a `Status`.
--- ---
## Interceptors in practice ## Interceptors in practice