add google search (#242)

* add google search

* fix git ignore

* Charge 1c for search queries

google/main.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"github.com/micro/micro/v3/service"
+	"github.com/micro/micro/v3/service/config"
+	"github.com/micro/micro/v3/service/logger"
+	"github.com/micro/services/google/handler"
+	pb "github.com/micro/services/google/proto"
+)
+
+func main() {
+	// Create service
+	srv := service.New(
+		service.Name("google"),
+		service.Version("latest"),
+	)
+
+	// Setup google maps
+	c, err := config.Get("google.apikey")
+	if err != nil {
+		logger.Fatalf("Error loading config: %v", err)
+	}
+	apiKey := c.String("")
+	if len(apiKey) == 0 {
+		logger.Fatalf("Missing required config: google.apikey")
+	}
+	// Setup google maps
+	c, err = config.Get("google.cx_id")
+	if err != nil {
+		logger.Fatalf("Error loading config: %v", err)
+	}
+	cxId := c.String("")
+	if len(cxId) == 0 {
+		logger.Fatalf("Missing required config: google.cxId")
+	}
+
+	// Register handler
+	pb.RegisterGoogleHandler(srv.Server(), handler.New(apiKey, cxId))
+
+	// Run service
+	if err := srv.Run(); err != nil {
+		logger.Fatal(err)
+	}
+}