title: How to setup Single Instance of WhatsApp Business API Client
body: <p>I had cloned these file as per <a href="https://developers.facebook.com/docs/whatsapp/installation/dev-single-instance#step-7--register-the-whatsapp-business-api-client" rel="nofollow noreferrer">facebook instructions</a></p>
  <p>And then Step 1: Create a biz Directory for the Setup Scripts</p>
  <pre><code>mkdir ~/biz; cd ~/biz;
  </code></pre>
  <p>Step 2: Get the WhatsApp Business API Client Configuration Files</p>
  <pre><code>   db.env
  
  docker-compose.yml
  
  multiconnect-compose.yml
  </code></pre>
  <p>Step 3: Set the WA_API_VERSION Environment Variable</p>
  <pre><code>export WA_API_VERSION=2.31.5
  </code></pre>
  <p>Step 4: Start the WhatsApp Business API Client</p>
  <pre><code>docker-compose up -d
  </code></pre>
  <p>The resulting output should look like the following:</p>
  <pre><code>Recreating whatsbusinessapi_db_1 ... done
  Creating whatsbusinessapi_wacore_1 ... done
  Creating whatsbusinessapi_waweb_1  ... done
  </code></pre>
  <p>Step 5: Verify Containers Are Running</p>
  <pre><code>docker-compose ps
  </code></pre>
  <p>output :</p>
  <pre><code>          Name                         Command               State                     Ports                   
  ---------------------------------------------------------------------------------------------------------------
  whatsbusinessapi_db_1       docker-entrypoint.sh -p 54 ...   Up      5000/tcp, 5432/tcp, 0.0.0.0:5000-&gt;6000/tcp
  whatsbusinessapi_wacore_1   /opt/whatsapp/bin/wait_on_ ...   Up      6250/tcp, 6251/tcp, 6252/tcp, 6253/tcp    
  whatsbusinessapi_waweb_1    /opt/whatsapp/bin/wait_on_ ...   Up      0.0.0.0:9090-&gt;443/tcp
  </code></pre>
  <p>By default, the Webapp container will be running on port 9090 (https://localhost:9090)
  as per facebook but when i tried https://localhost:9090
  <a href="https://i.stack.imgur.com/d4IWa.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/d4IWa.png" alt="enter image description here" /></a></p>
  <p>So anyone have idea please.</p>