How to get response data when status 401? (error handling)

[qkreltms]

When I dispatch an post request, it returns data {"code":401,"message":".....","result":null} with status 401

I expected to get response data from onError, but undefined is returned from onSuccess.

In this case how to get response data from onError?

useQuery(['worklist', query], getPatientListApi, {
    onSuccess: (data) => {
      console.log(data) // "undefined"
      return data
    },
    onError: (err) => {
      console.log('err', err) 
    },
    retry: 0,
  })

[qkreltms]

It was because of this

// axios interceptors
instance.interceptors.response.use(undefined, (error) => { }

When I deleted this it works what I expected

    onError: (err) => {
      console.log('err', err.response) 
    },