Monitor gRPC Applications in Go using Atatus

Installation steps

Install Atatus Go Agent and RPC module

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```
go get go.atatus.com/agent
go get go.atatus.com/agent/module/atgrpc
```

Set up tracer and instrument the RPC client/server

Instrumenting gRPC Server in Go using Atatus Agent

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import (
    "google.golang.org/grpc"

    "go.go.atatus.com/agent"
    "go.go.atatus.com/agent/module/atgrpc"
)

func main() {
    // Initialize Atatus tracer with values from environment
    tracer := atatus.DefaultTracer
    tracer.Service.LicenseKey = os.Getenv("ATATUS_LICENSE_KEY")
    tracer.Service.AppName = os.Getenv("ATATUS_APP_NAME")
    tracer.Service.Tracing = os.Getenv("ATATUS_TRACING")
    tracer.Service.Analytics = os.Getenv("ATATUS_ANALYTICS")

    // Setup gRPC server with Atatus middleware
    server := grpc.NewServer(
        grpc.UnaryInterceptor(atgrpc.NewUnaryServerInterceptor()),
        grpc.StreamInterceptor(atgrpc.NewStreamServerInterceptor()),
    )

    // Register your gRPC services here
    // pb.RegisterYourService(server, ...)

    // Start server
    // lis, _ := net.Listen("tcp", ":50051")
    // server.Serve(lis)
}

Instrumenting gRPC Client in Go using Atatus Agent

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import (
    "google.golang.org/grpc"

    "go.go.atatus.com/agent"
    "go.go.atatus.com/agent/module/atgrpc"
)

func main() {
    // Initialize Atatus tracer with values from environment
    tracer := atatus.DefaultTracer
    tracer.Service.LicenseKey = os.Getenv("ATATUS_LICENSE_KEY")
    tracer.Service.AppName = os.Getenv("ATATUS_APP_NAME")
    tracer.Service.Tracing = os.Getenv("ATATUS_TRACING")
    tracer.Service.Analytics = os.Getenv("ATATUS_ANALYTICS")

    // Setup gRPC client with Atatus interceptors
    conn, _ := grpc.Dial("localhost:50051",
        grpc.WithInsecure(),
        grpc.WithUnaryInterceptor(atgrpc.NewUnaryClientInterceptor()),
        grpc.WithStreamInterceptor(atgrpc.NewStreamClientInterceptor()),
    )

    // Create client and make RPC calls
    // client := pb.NewYourServiceClient(conn)
    // client.YourMethod(ctx, &pb.YourRequest{})
}

Clean Up Dependencies

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```
go mod tidy
```
Run the Application

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```
go run client.go
go run server.go
```