gRPC Client Example

grpc-multi-pkg-protos.go

package main

import (
	"context"
	"fmt"
	"log"

	"github.com/jamisonhyatt/grpc-multi-pkg-protos/pkg/external/location"
	"github.com/jamisonhyatt/grpc-multi-pkg-protos/pkg/weatherman"
	desktop "github.com/jamisonhyatt/grpc-multi-pkg-protos/pkg/weatherman/desktop_svc"
	mobile "github.com/jamisonhyatt/grpc-multi-pkg-protos/pkg/weatherman/mobile_svc"
	"google.golang.org/grpc"
)

func main() {
	var opts []grpc.DialOption
	opts = append(opts, grpc.WithInsecure())

	conn, err := grpc.Dial("localhost:8000", opts...)
	if err != nil {
		log.Fatalf("fail to dial: %v", err)
	}
	defer conn.Close()
	mobileClient := mobile.NewMobileClient(conn)
	desktopClient := desktop.NewDesktopClient(conn)
	weathermanClient := weatherman.NewWeathermanClient(conn)

	health, err := weathermanClient.Healthcheck(context.Background(), &weatherman.HealthCheckRequest{})
	if err != nil || !health.Healthy {
		panic("uhoh")
	}
	fmt.Printf("health: %v\n", health)

	mobileWeather, err := mobileClient.GetWeather(context.Background(), &mobile.GetWeatherRequest{City: &location.City{
		Name: "Seattle", State: location.State_WASHINGTON,
	}})
	if err != nil || !mobileWeather.Forecast.Rain {
		panic("definitely not right")
	}
	fmt.Printf("Mobile Client Seattle Weather: %v\n", mobileWeather)

	desktopWeather, err := desktopClient.GetWeather(context.Background(), &desktop.GetWeatherRequest{City: &location.City{
		Name: "Seattle", State: location.State_WASHINGTON,
	}})
	if err != nil || !desktopWeather.Forecast.Rain {
		panic("definitely not right")
	}
	fmt.Printf("Desktop Client Seattle Weather: %v\n", desktopWeather)

}