Fix ajv logging warnings when discriminators are combined with 's (#651)

cdimascio · Sep 12, 2021 · 522c3ec · 522c3ec
1 parent fc603f7
commit 522c3ec
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/middlewares/parsers/schema.preprocessor.ts b/src/middlewares/parsers/schema.preprocessor.ts
@@ -315,10 +315,15 @@ export class SchemaPreprocessor {
 
       if (options.length > 0) {
         const newSchema = JSON.parse(JSON.stringify(schemaObj));
-        newSchema.properties = {
+
+        const newProperties = {
           ...(o.properties ?? {}),
           ...(newSchema.properties ?? {}),
         };
+        if(Object.keys(newProperties).length > 0) {
+          newSchema.properties = newProperties;
+        }
+
         newSchema.required = o.required;
         if (newSchema.required.length === 0) {
           delete newSchema.required;