async await

async handleLoadPalabras() {
  let fourLetterWords = await apiCalls.getPalabras('four-letter-words');
  let prefixSuffixRoots = await apiCalls.getPalabras('prefix-suffix-roots');
  let verbos = await apiCalls.getPalabras('verbos');

  this.setState({
    fourLetterWords,
    prefixSuffixRoots,
    verbos
  });

  localStorage.setItem('fourLetterWords', JSON.stringify(fourLetterWords));
  localStorage.setItem('prefixSuffixRoots', JSON.stringify(prefixSuffixRoots));
  localStorage.setItem('verbos', JSON.stringify(verbos));
}

export async function getPalabras(param) {
// console.log(param);
return fetch(`${APIURL}${param}`)
  .then(resp => {
    if (!resp.ok) {
      if (resp.status >= 400 && resp.status < 500) {
        return resp.json().then(data => {
          let err = { errorMessage: data.message }
          throw err;
        })
      } else {
        let err = { errorMessage: 'Please Try Again Later. Server Is NOT Responding.' };
        throw err;
      }
    }
    return resp.json();
  })
    .catch(function (err) {
      console.log(err);
      return err;
    })
}`