index.js

import { selector, selectorFamily } from "recoil"
 
export const API_DATE_FORMAT = "yyyy-MM-dd"

export const countriesQuery = selector({
    key: "countries",
    get: async () => {
        try {
            const res = await fetch("https://covid19-api.org/api/countries")
            const countries = await res.json()
            return countries.reduce((dict, country) => {
                dict[country.alpha2] = country
                return dict
            }, {})
        } catch (e) {
            console.error("ERROR GET /countries", e)
        }
    },
})

export const statusByDateQuery = selectorFamily({
    key: "status-by-date",
    get: (formattedDate) => async ({ get }) => {
        try {
            const res = await fetch(`https://covid19-api.org/api/status?date=${formattedDate}`)
            const status = await res.json()

            return status
        } catch (e) {
            console.error("ERROR GET /statusByDate", e)
        }
    },
})