If you create a component (sequence, endpoint, etc.) of the ESB externally, you can save it as a Carbon application (C-App) CAR file and add it to a running Carbon instance using the management console.
Follow the instructions below to upload an application in WSO2 ESB.
1. Sign in. Enter your user name and password to log on to the ESB Management Console.
2. Click the "Main" button to access the "Manage" menu.
3. From the left navigation menu, under the "Applications," select "Add."
4. Select your CAR file by browsing the file system. Click on the "Browse" button.
5. Select a CAR file and click on the "Upload" button.
6. After you upload the CAR file, the "WSO2 Carbon" window appears. Click "OK" and refresh the page to see the status of a new application.
7. The CAR files you deploy this way are dropped to the <PRODUCT_HOME>/repository/carbonapps/{tenant-ID} folder.
8. If successfully deployed, the C-App should be listed on the "Applications List" window.
If the Carbon application does not have artifacts which are applicable to the particular product you are using, nothing will be listed on this window.