Added tags query

resolver/tag.go

@@ -11,6 +11,21 @@ type TagInput struct {
 	Name string
 }
 
+// Tags implements the tags query
+func (r *QueryResolver) Tags() ([]*TagResolver, error) {
+	tags, err := story.ListTags()
+	if err != nil {
+		return nil, err
+	}
+
+	resolvers := make([]*TagResolver, len(tags))
+	for i, tag := range tags {
+		resolvers[i] = &TagResolver{T: tag}
+	}
+
+	return resolvers, nil
+}
+
 // Kind resolves Tag.kind
 func (r *TagResolver) Kind() string {
 	return r.T.Kind