We can compose lenses to get value:
const addrs = [{street: '99 Walnut Dr.', zip: '04821'}, {street: '2321 Crane Way', zip: '08082'}] const user = {id: 3, name: 'Charles Bronson', addresses: addrs} const addresses = R.lensProp('addresses') const street = R.lensProp('street') const first = R.lensIndex(0) const firstStreet = R.compose(addresses, first, street) const res = R.view(firstStreet, user) console.log(res) // '99 Walnut Dr.'