feat(playstore): Add GetSubscription

playstore/validator.go

@@ -45,6 +45,7 @@ type IABSubscriptionV2 interface {
 
 // The IABMonetization type is an interface for monetization service
 type IABMonetization interface {
+	GetSubscription(ctx context.Context, packageName string, productID string) (*androidpublisher.Subscription, error)
 	GetSubscriptionOffer(context.Context, string, string, string, string) (*androidpublisher.SubscriptionOffer, error)
 }
 
@@ -232,6 +233,17 @@ func (c *Client) DeferSubscription(ctx context.Context, packageName string, subs
 	return result, err
 }
 
+// GetSubscription reads a single subscription.
+func (c *Client) GetSubscription(ctx context.Context,
+	packageName string,
+	productID string,
+) (*androidpublisher.Subscription, error) {
+	ps := androidpublisher.NewMonetizationSubscriptionsService(c.service)
+	result, err := ps.Get(packageName, productID).Context(ctx).Do()
+
+	return result, err
+}
+
 // GetSubscriptionOffer reads a single subscription offer.
 func (c *Client) GetSubscriptionOffer(ctx context.Context,
 	packageName string,

playstore/validator_test.go

@@ -277,6 +277,22 @@ func TestDeferSubscription(t *testing.T) {
 	// TODO Normal scenario
 }
 
+func TestGetSubscription(t *testing.T) {
+	t.Parallel()
+	// Exception scenario
+	expected := "googleapi: Error 404: Package not found: package., notFound"
+
+	client, _ := New(jsonKey)
+	ctx := context.Background()
+	_, err := client.GetSubscription(ctx, "package", "productID")
+
+	if err == nil || err.Error() != expected {
+		t.Errorf("got %v", err)
+	}
+
+	// TODO Normal scenario
+}
+
 func TestGetSubscriptionOffer(t *testing.T) {
 	t.Parallel()
 	// Exception scenario