# Custom middleware (Enterprise)

([Enterprise](https://readonlyrest.com/enterprise))

Sometimes, Enterprise users might need more flexibility and customize the plugin behavior to adjust the product to the business needs. There are two options to declare the custom middleware:

* JS file: `readonlyrest_kbn.custom_middleware_inject_file: '/path/to/your/file.js'` // You can also use a relative path here. It's relative to the Kibana root folder
* Inline: `readonlyrest_kbn.custom_middleware_inject: 'function test(req, res, next) {logger.debug("custom middleware called"); next()}'`


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