express-cargo/dist/esm/src/decorators.js

express middleware for class-based request parsing

import { CargoClassMetadata } from './metadata';
export function optional() {
    return (target, propertyKey)=>{
        const classMeta = new CargoClassMetadata(target);
        const fieldMeta = classMeta.getFieldMetadata(propertyKey);
        fieldMeta.setOptional(true);
        classMeta.setFieldMetadata(propertyKey, fieldMeta);
    };
}