I tried this example from the Google Calendar for Developers web page: https://developers.google.com/calendar/api/v3/reference/calendars/insert?apix_params=%7B%22resource%22%3A%7B%22summary%22%3A%22TEMP%22%7D%7D&apix=true#try-it.

Although it works fine when tested from Google's website, as soon as I paste the example code on my Wix website and run it, I get an error. Here is the code, followed by the error.

const { gapi } = require("googleapis");

  /**
   * Sample JavaScript code for calendar.calendars.insert
   * See instructions for running APIs Explorer code samples locally:
   * https://developers.google.com/explorer-help/guides/code_samples#javascript
   */
  function authenticate() {
    return gapi.auth2.getAuthInstance()
        .signIn({scope: "https://www.googleapis.com/auth/calendar"})
        .then(function() { console.log("Sign-in successful"); },
              function(err) { console.error("Error signing in", err); });
  }
  function loadClient() {
    gapi.client.setApiKey("YOUR_API_KEY");
    return gapi.client.load("https://content.googleapis.com/discovery/v1/apis/calendar/v3/rest")
        .then(function() { console.log("GAPI client loaded for API"); },
              function(err) { console.error("Error loading GAPI client for API", err); });
  }
  // Make sure the client is loaded and sign-in is complete before calling this method.
  function execute() {
    return gapi.client.calendar.calendars.insert({
      "resource": {
        "summary": "TEMP"
      }
    })
        .then(function(response) {
                // Handle the results here (response.result has the parsed body).
                console.log("Response", response);
              },
              function(err) { console.error("Execute error", err); });
  }
  gapi.load("client:auth2", function() {
    gapi.auth2.init({client_id: "YOUR_CLIENT_ID"});
  });

Error: google.load is not a function