How to exclude entity field from returned by controller JSON. NestJS + Typeorm

In addition to [this answer](

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) for Nestjs.

How to use class-transformer groups in a dynamic way since the groups are fixed in the function decorator `@SerializeOptions`. Put the dynamic groups in `classToClass` or `plainToClass`.

```
@Post()
@SerializeOptions({
groups: ['admin','user'],
})
async create(
@Body() createProjectDto: CreateProjectDto,
) {
const data = await this.projectsService.create(createProjectDto);
return classToClass(data, { groups: ['admin','DYNAMIC_GROUP'] });
//Or you can return
//return plainToClass(Project, plainObject, {groups: ['admin','DYNAMIC_GROUP']});
}
```
The `classToClass` and `plainToClass` inside the function body do the actual filtering while `@SerializeOptions` to make sure the filtered data will be returned correctly.

@Injectable()
export default class TransformInterceptor implements NestInterceptor {
intercept(
context: ExecutionContext,
next: CallHandler,
): Observable<AnyObject> {
return next.handle().pipe(map((args) => instanceToPlain(args)));
}
}

Whoever comes across this question in the future might also consider using the approach I suggested here:

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