Composing asynchronous functions with ramda

source.js

import { request, takeParsed } from 'base-fetch'
import { assoc, __, call, pipeWith, andThen } from 'ramda'

const result = { user: null, todo: null }

const getUser = (properties = result) =>
  request('https://jsonplaceholder.typicode.com/users/1')
    .then(takeParsed)
    .then(assoc('user', __, properties))

const getTodo = (properties = result) =>
  request('https://jsonplaceholder.typicode.com/todos/1')
    .then(takeParsed)
    .then(assoc('todo', __, properties))

call(pipeWith(andThen)([getUser, getTodo]))
  .then(console.log) // logs { user: ..., todo: ... }
  .catch(console.error)