Fix another bug

Author: schani

src/examples.json

@@ -39,6 +39,17 @@
         "additionalProperties": false,
         "$schema": "http://json-schema.org/draft-07/schema#"
     },
+    {
+        "type": "object",
+        "properties": {
+            "filter": {
+                "type": "string",
+                "description": "Filter the apps by name or description. Looks for substrings."
+            }
+        },
+        "additionalProperties": false,
+        "$schema": "http://json-schema.org/draft-07/schema#"
+    },
     {
         "type": "object",
         "properties": {

src/index.ts

@@ -182,6 +182,12 @@ export function convertJsonSchemaToZod(schema: JSONSchema): z.ZodTypeAny {
                                 shape[key] = shape[key].optional();
                             }
                         }
+                    } else {
+                        // In JSON Schema, properties are optional by default
+                        // if no required array is specified
+                        for (const key of Object.keys(shape)) {
+                            shape[key] = shape[key].optional();
+                        }
                     }
 
                     // Create the schema with or without passthrough based on additionalProperties