class-transformer/esm5/decorators/transform-instance-to-plain.decorator.js

Proper decorator-based transformation / serialization / deserialization of plain javascript objects to class constructors

import { ClassTransformer } from '../ClassTransformer';
/**
 * Transform the object from class to plain object and return only with the exposed properties.
 *
 * Can be applied to functions and getters/setters only.
 */
export function TransformInstanceToPlain(params) {
    return function (target, propertyKey, descriptor) {
        var classTransformer = new ClassTransformer();
        var originalMethod = descriptor.value;
        descriptor.value = function () {
            var args = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                args[_i] = arguments[_i];
            }
            var result = originalMethod.apply(this, args);
            var isPromise = !!result && (typeof result === 'object' || typeof result === 'function') && typeof result.then === 'function';
            return isPromise
                ? result.then(function (data) { return classTransformer.instanceToPlain(data, params); })
                : classTransformer.instanceToPlain(result, params);
        };
    };
}
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