DocuSign NODE SDK Example - Get Base URI (note currently using a legacy endpoint, update coming soon)

getBaseUri.js

// creating an instance of the authentication API
var authApi = new docusign.AuthenticationApi(apiClient);
var loginOps = {};
loginOps.apiPassword = 'true';
loginOps.includeAccountIdGuid = 'true';
// making login call. we could also use DocuSign OAuth userinfo call
authApi.login(loginOps, function (error, loginInfo, response) {
  if (error) {
    return res.send(error);
  }
  if (loginInfo) {
    // list of user account(s)
    // note that a given user may be a member of multiple accounts
    var loginAccounts = loginInfo.loginAccounts;
    var loginAccount = loginAccounts[0];
    var baseUri = loginAccount.baseUrl;
    var accountDomain = baseUri.split('/v2');

    // below code required for production, no effect in demo (same domain)
    apiClient.setBasePath(accountDomain[0]);
    docusign.Configuration.default.setDefaultApiClient(apiClient);

    // return the list of accounts to the browser
    console.log("LoginAccounts = ", loginAccounts);
    return res.send(loginAccounts);
  }
});