safe-throw-demo.ts

import * as st from 'safe-throw';
import * as retry from 'safe-throw/retry';

const fetchDomainByNameForUser = retry.untilAsync(
  (res) => !st.isErr(res),
  async (domainName: string, userId: string) => {
    const authResult = await native.tryPromise(
      Auth.check({
        action: 'query',
        resource: 'domains',
        userId
      })
    );
    if (st.isErr(authResult)) return authResult;
    
    const domain = await native.tryPromise({
      db.query('domains', { name: domainName })
    });
    return st.isErr(domain) || domain != null
      ? domain
      : st.err('Domain not found');
  }
);