vocab-app.js

// WordsAPI: https://www.wordsapi.com/
// RapidAPI Documentation: https://rapidapi.com/dpventures/api/wordsapi/endpoints
// Custom Functions: https://developers.google.com/apps-script/guides/sheets/functions
// External APIs: https://developers.google.com/apps-script/guides/services/external
// Tutorial: https://www.benlcollins.com/apps-script/api-tutorial-for-beginners/

function wordsAPI(url) { 
  var response = UrlFetchApp.fetch(url, {
    "method": "GET",
    "headers": {
      "x-rapidapi-host": "wordsapiv1.p.rapidapi.com",
      "x-rapidapi-key": "YOUR-KEY-HERE"
    }
  });
  return response;
}

function getWordDefinition(input) {
  if(input.map) {
    return input.map(getWordDefinition)
  }
  else {
    // make api call
  var url = 'https://wordsapiv1.p.rapidapi.com/words/' + input
  var response = wordsAPI(url)
  
  // save contents
  var json = response.getContentText();
  var data = JSON.parse(json);
  
  // store, return results
  try{var definition = data["results"][0]["definition"]} catch (e) {console.error('myFunction() yielded an error: ' + e)};
  return definition;
  }
}

function getWordSynonym(input) {
  if(input.map) {
    return input.map(getWordSynonym)
  }
  else {
    // make api call
  var url = 'https://wordsapiv1.p.rapidapi.com/words/' + input
  var response = wordsAPI(url)
  
  // save contents
  var json = response.getContentText();
  var data = JSON.parse(json);
  
  // store, return results
  try{var synonym = data["results"][0]["synonyms"][0]} catch (e) {console.error('myFunction() yielded an error: ' + e)};
  return synonym;
  }
}