graph2: Added File type and queries.

graph2/types/file.go

@@ -0,0 +1,16 @@
+package types
+
+import (
+	"context"
+
+	"git.aiterp.net/rpdata/api/models"
+)
+
+type fileResolver struct{}
+
+func (r *fileResolver) Size(ctx context.Context, file *models.File) (int, error) {
+	return int(file.Size), nil
+}
+
+// FileResolver is a resolver
+var FileResolver fileResolver