CODEWITHSUNDEEP
nestjs
deanWombourne
deanWombourne

Reputation: 38485

Can I write a DTO which extracts both query and params vars in nestjs

I'm making an api which looks like:

http://example.com/story/:storyId/analytics?from={date}&to={date}

The storyId is part of the path, but from and to are query parameters.

I've got a DTO, like this:

class GetStoryAnalyticsDTO {
  storyId: string
  from: Date
  to: Date
}

(validators omitted for brevity)

And I'm using it like this in my controler:

@Get()
getStoryAnalytics(@Query() query: GetStoryAnalyticsRequestDto): Promise<MyResponse> {...}

But, (obviously!), this only extracts the from and to parameters.

Is there any way to extract both from the query and the path to get all the vars in one dto?

If not, it's not a massive hassle - I can just add @Param storyId: string to the controller and it's all good :)

Upvotes: 1

Views: 2016

Answers (1)

Jay McDoniel
Jay McDoniel

Reputation: 70570

You could make a custom decorator like @QueryParam() that pulls together req.query and req.params. It could look something like this:

export const QueryParam = createParamDecorator((data: unknown, context: ExecutionContext) => {
  const req = context.switchToHttp().getRequest();
  return { ...req.query, ...req.params };
});

And just make sure to add validateCustomDecorators on the ValidationPipe if you want it to auto validate for you. Otherwise, you're good to start using it.

Upvotes: 3

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