TypeError: Reflect.getMetadata is not a function When using Node.JS routing-controller

Question

I am getting the following error. Can anyone please help

D:\Learning\Node\r-controller\node_modules\src\metadata\ParamMetadata.ts:120 const ParamTypes = (Reflect as any).getMetadata('design:paramtypes', args.object, args.method); ^ TypeError: Reflect.getMetadata is not a function at new ParamMetadata (D:\Learning\Node\r-controller\node_modules\src\metadata\ParamMetadata.ts:120:43) at D:\Learning\Node\r-controller\node_modules\src\metadata-builder\MetadataBuilder.ts:125:25 at Array.map () at MetadataBuilder.createParams (D:\Learning\Node\r-controller\node_modules\src\metadata-builder\MetadataBuilder.ts:125:8) at D:\Learning\Node\r-controller\node_modules\src\metadata-builder\MetadataBuilder.ts:111:28 at Array.map () at MetadataBuilder.createActions (D:\Learning\Node\r-controller\node_modules\src\metadata-builder\MetadataBuilder.ts:108:30) at D:\Learning\Node\r-controller\node_modules\src\metadata-builder\MetadataBuilder.ts:85:33 at Array.map () at MetadataBuilder.createControllers (D:\Learning\Node\r-controller\node_modules\src\metadata-builder\MetadataBuilder.ts:81:24)

https://github.com/typestack/routing-controllers/issues/669 – hoangdv Jul 20 '21 at 12:22 — hoangdv, Jul 20 '21 at 12:22

score 8 · Accepted Answer · answered Jul 20 '21 at 12:25

8

Add import "reflect-metadata" in your main file

answered Jul 20 '21 at 12:25

Dhaneesh Kumar

126
6

Tip: it must be exactly `import 'reflect-metadata';`. Doing `import * as reflect from 'reflect-metadata';` didn't work for me. – josephdpurcell Jul 14 '22 at 03:31
also make sure that it is the first import statement in that file – Humppakäräjät Mar 07 '23 at 15:01

TypeError: Reflect.getMetadata is not a function When using Node.JS routing-controller

1 Answers1