npm install getaddress-api

import Client from 'getaddress-api'

const api = new Client("<your API key>");

const autocompleteResult = await api.autocomplete('TR19 7AA');

if(autocompleteResult.isSuccess)
{
  var success = autocompleteResult.toSuccess();

  for(const suggestion of success.suggestions)
  {
      const address = await api.get(suggestion.id);
      console.log(address);
  }
}
else
{
  const failed = autocompleteResult.toFailed();
  console.log(failed);
}