RESTDataSource - POST body as array

[bartverbruggen]

There seems to be a problem when trying to send an array as body with the RESTDataSource post call.

When trying to execute following function, the endpoint receives an empty body in the request.

async addMultipleItems({ input = [{...}, {...}, ...] }: any) {
  return this.post('/items', input)
}

The res.body of the endpoint should contain [{...}, {...}, ...] but contains {}.

Any help?

[bartverbruggen]

I've temporary fixed this by setting the content type header in de post:

  async addMultipleItems({ input = [{...}, {...}, ...] }: any) {
    return this.post('/items', JSON.stringify(input), {
      headers: {
        'Content-Type': 'application/json',
      },
    })
  }

But if this is done in RESTDataSource.ts for objects, I think the same should be true for arrays.

[trevorblades]

This appears to be resolved by #2219