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lang: en
title: 'API docs: metadata.metadatainspector.getdesigntypeformethod'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/metadata
permalink: /doc/en/lb4/apidocs.metadata.metadatainspector.getdesigntypeformethod.html
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[Home](./index.md) > [@loopback/metadata](./metadata.md) > [MetadataInspector](./metadata.metadatainspector.md) > [getDesignTypeForMethod](./metadata.metadatainspector.getdesigntypeformethod.md)
## MetadataInspector.getDesignTypeForMethod() method
Get TypeScript design time type for a method.
**Signature:**
```typescript
static getDesignTypeForMethod(target: Object, methodName: string): DesignTimeMethodMetadata | undefined;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| target | Object | Class or prototype |
| methodName | string | Method name |
**Returns:**
[DesignTimeMethodMetadata](./metadata.designtimemethodmetadata.md) \| undefined
Design time metadata. The return value is `undefined` in projects that do not enable `emitDecoratorMetadata` in TypeScript compiler options or are written in vanilla JavaScript.