fix: Remove additional properties from exported interface (#17)

Author: adrianlyjak

src/{{ project_name_snake }}/export_types.py

@@ -49,7 +49,7 @@ def export_types(schema_file: str):
 
 def generate_typescript_interfaces(schema_dir: Path):
     run_command(
-        f"npx -y json-schema-to-typescript@15.0.4 -i '{schema_dir / '*.json'}' -o {schema_dir}"
+        f"npx -y json-schema-to-typescript@15.0.4 -i '{schema_dir / '*.json'}' -o {schema_dir} --additionalProperties=false"
     )
     run_command(f"npx -y prettier@3.5.1 --write {schema_dir}")
 

test-proj/src/test_proj/export_types.py

@@ -49,7 +49,7 @@ def export_types(schema_file: str):
 
 def generate_typescript_interfaces(schema_dir: Path):
     run_command(
-        f"npx -y json-schema-to-typescript@15.0.4 -i '{schema_dir / '*.json'}' -o {schema_dir}"
+        f"npx -y json-schema-to-typescript@15.0.4 -i '{schema_dir / '*.json'}' -o {schema_dir} --additionalProperties=false"
     )
     run_command(f"npx -y prettier@3.5.1 --write {schema_dir}")
 

test-proj/ui/src/schemas/MySchema.d.ts

@@ -9,5 +9,4 @@ export type Hello = string;
 
 export interface MySchema {
   hello: Hello;
-  [k: string]: unknown;
 }

ui/src/schemas/MySchema.d.ts

@@ -9,5 +9,4 @@ export type Hello = string;
 
 export interface MySchema {
   hello: Hello;
-  [k: string]: unknown;
 }