Initial cloud-services repo - gateway service + pkg modules

pkg/tmobile/errors.go

@@ -0,0 +1,62 @@
+package tmobile
+
+import (
+	"github.com/pkg/errors"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+var ErrCreateRequest = errors.New("failed to create request")
+var ErrDoRequest = errors.New("failed to do request")
+var ErrReadResponseBody = errors.New("failed to read response body")
+var ErrBadStatusCode = errors.New("bad status code")
+var ErrBadGatewayCode = errors.New("bad gateway timeout")
+var ErrJSONMarshal = errors.New("json marshal & unmarshal error")
+var ErrTokenGen = errors.New("failed to generate token")
+var ErrBadMsgStatus = errors.New("bad message status")
+var ErrTimeoutSendingMessage = errors.New("timeout sending message")
+var ErrAccessTokenExpired = errors.New("access token expired")
+
+func ErrorToGRPCError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	if errors.Is(err, ErrCreateRequest) {
+		return status.Errorf(codes.Internal, "%s", err.Error())
+	}
+
+	if errors.Is(err, ErrDoRequest) {
+		return status.Errorf(codes.Internal, "%s", err.Error())
+	}
+
+	if errors.Is(err, ErrReadResponseBody) {
+		return status.Errorf(codes.Internal, "%s", err.Error())
+	}
+
+	if errors.Is(err, ErrBadStatusCode) {
+		return status.Errorf(codes.Internal, "%s", err.Error())
+	}
+
+	if errors.Is(err, ErrBadGatewayCode) {
+		return status.Errorf(codes.Internal, "%s", err.Error())
+	}
+
+	if errors.Is(err, ErrJSONMarshal) {
+		return status.Errorf(codes.Internal, "%s", err.Error())
+	}
+
+	if errors.Is(err, ErrTokenGen) {
+		return status.Errorf(codes.Internal, "%s", err.Error())
+	}
+
+	if errors.Is(err, ErrBadMsgStatus) {
+		return status.Errorf(codes.Internal, "%s", err.Error())
+	}
+
+	if errors.Is(err, ErrTimeoutSendingMessage) {
+		return status.Errorf(codes.DeadlineExceeded, "%s", err.Error())
+	}
+
+	return status.Errorf(codes.Unknown, "unknown error: %v", err)
+}