title: nodejs always returning null object of from Mandrill /senders/add-domain
body: <p>I am using the mandrill api to automate some tasks for domain creation and verification using nodejs. Below is the part of my code that is having issue.</p>
  <pre><code>    const sendingDomainCommand = mandrill_client.senders.addDomain({domain: domain.join(&quot;.&quot;)}); // adding a domain in mandrill
      await sleep(10000)
      const sendingDomainResult = await sendingDomainCommand;
      console.log(sendingDomainCommand);
  </code></pre>
  <p>According to below mandrill/transactional api the senders/add-domain should return a json response.
  <a href="https://mailchimp.com/developer/transactional/api/senders/add-sender-domain/" rel="nofollow noreferrer">https://mailchimp.com/developer/transactional/api/senders/add-sender-domain/</a></p>
  <p>But in my case when I am printing the sendingDomainCommand it always shows null. I used the typeof to check the the type of this and it is object. can someone help me here please?</p>