How to run both server and client using Tonic in Rust?

I am trying to send a request to a grpc server from another grpc server. But the problem is I don't seem to get any ideas about how to access share the the data.

Lets say I have 3 apps, app1, app2, and app3 app2 and app3 are both written in rust using tonic.

1. So app1 sends a grpc request to app2 - this is working
2. app2 receives the request and processes the data - this is working as well
3. app2 needs to send a grpc request to app3 - I don't know how to do this
4. app3 receives the requests and sends back the reply - this is working.

Here is the code where I am trying to send the data:

async fn list_modules(          &self,          request: Request<ListModulesRequest>,      ) -> Result<Response<ListModulesResponse>, Status> {          println!("Got a request: {:?}", request);          let request_data = request.into_inner();          let request = tonic::Request::new(DalListModulesRequest {              request_id: Uuid::new_v4().to_string(),              app_id: APP_ID.to_string(),          });          let mut dal_client = ModulesDalManager::connect("http://[::1]:50052").await?;          let mut response = dal_client.list_modules(request).await?;          let reply = ListModulesResponse {              request_id: response.request_id,              modules: response.modules,          };          Ok(Response::new(reply))      }  

Here I guess I shouldn't be creating the dal_client as below as it is giving me errors. But I don't understand where to create it. let mut dal_client = ModulesDalManager::connect("http://[::1]:50052").await?;

Can someone please give me any ideas on how to proceed?

Here is the error I get:

error[E0599]: no function or associated item named `connect` found for trait object `(dyn ModulesDalManager + 'static)` in the current scope    --> src/bal/services/module_manager.rs:48:49     |  48 |         let mut dal_client = ModulesDalManager::connect("http://[::1]:50052").await?;     |                                                 ^^^^^^^ function or associated item not found in `(dyn ModulesDalManager + 'static)`     |     = help: items from traits can only be used if the trait is implemented and in scope     = note: the following traits define an item `connect`, perhaps you need to implement one of them:             candidate #1: `hyper::client::connect::sealed::Connect`             candidate #2: `hyper::client::connect::sealed::ConnectSvc`  

https://stackoverflow.com/questions/67425614/how-to-run-both-server-and-client-using-tonic-in-rust May 07, 2021 at 04:35AM