const options = {method: 'GET'};

fetch('https://api.coinbase.com/v1/tokenized-stocks/prospectuses', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "prospectuses": [
    {
      "ticker": "<string>",
      "isin": "<string>"
    }
  ]
}