@nestjs/class-transformer/esm2015/decorators/transform.decorator.js

Fork of the class-transformer package. Proper decorator-based transformation / serialization / deserialization of plain javascript objects to class constructors

import { defaultMetadataStorage } from '../storage';
/**
 * Defines a custom logic for value transformation.
 *
 * Can be applied to properties only.
 */
export function Transform(transformFn, options = {}) {
    return function (target, propertyName) {
        defaultMetadataStorage.addTransformMetadata({
            target: target.constructor,
            propertyName: propertyName,
            transformFn,
            options,
        });
    };
}
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