async function getStarWarsHeroes() {
   let retryLimit = 3;
   let success = false;
   // API is not always returning data (500 erros happens) so we extend your tries to 3 times that explain a for loop
   for (let it = 0; it < retryLimit; ++it) {
       let data = await axios.get('...')
       .then(response => response.json())
       .then(json => {
          success = true;
          return json;
       }
       .catch(error => {
        console.error(error);
       })
      if (success === true) {
      return data;
      }
   }
   return null;
}