findProp.js

import {curryN, has, values, is} from 'ramda'

// given a error object from a third party source
// which may not guarantee structure
// quick search via recursion to find property
const err = {
  system: {
    status: {
      err: {
        response: 'boom',
        id: 12
      },
      code: 400
    }
  }
}
  // does not have system parent
const err2 = {
    status: {
      err: {
        response: 'boom',
        id: 12
      },
      code: 400
    }
}


const findProp = curryN(2, (prop, obj) => has(prop, obj) ? obj[prop] : values(obj).reduce((acc, value) => is(Object, value) ? findProp(prop, value) : acc, {}))

findProp('response', err) // => 'boom'