feat: moved back grpc

grpc/main.go

@@ -0,0 +1,36 @@
+package grpc
+
+import (
+	"crypto/tls"
+	"fmt"
+	"net/url"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
+)
+
+// NewGrpcConnection parses a GRPC endpoint and creates a connection to it
+func NewGrpcConnection(endpoint string) (*grpc.ClientConn, error) {
+	grpcUrl, err := url.Parse(endpoint)
+	if err != nil {
+		return nil, err
+	}
+
+	var secureOpt grpc.DialOption
+	switch grpcUrl.Scheme {
+	case "http":
+		secureOpt = grpc.WithInsecure()
+	case "https":
+		creds := credentials.NewTLS(&tls.Config{})
+		secureOpt = grpc.WithTransportCredentials(creds)
+	default:
+		return nil, fmt.Errorf("unknown grpc url scheme: %s", grpcUrl.Scheme)
+	}
+
+	grpcConn, err := grpc.Dial(grpcUrl.Host, secureOpt)
+	if err != nil {
+		return nil, err
+	}
+
+	return grpcConn, nil
+}