cachedPokemonCall-2.js

const request = require('request');
const NodeCache = require('node-cache');
const API_ENDPOINT = 'http://pokeapi.co/api/v2/pokemon/';
const cache = new NodeCache();

// try getting data from the cache first
cache.get(API_ENDPOINT, (err, data) => {
  
  // return early if there's an error or data is available
  if (err) return console.log(err);
  if (data) return console.log('Obtained data from cache:', data);

  // if no error, but data was not found, make the API request
  request(API_ENDPOINT, (error, response, body) => {
    
    // if successful, store the body in the cache
    if (!error && response.statusCode === 200) {
      
      cache.set(API_ENDPOINT, body, (err, success) => {
        
        // return early if there's an error or no success
        if (err || !success) return console.log(err);
        
        console.log('Queried API, stored data in cache', body);
      });
    }
  });
});