> For the complete documentation index, see [llms.txt](https://revdebug.gitbook.io/revdebug/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://revdebug.gitbook.io/revdebug/revdebug-features/tests-monitoring.md).

# Tests Monitoring

### Prerequisite

Installed and configured RevDeBug Node.JS module - please refer to [JavaScript section](/revdebug/supported-langauges/javascript.md).

### Usage

From command line at the cypress project root directory add a reference to the @revdebug module repository:

```
npm config set @revdebug:registry https://nexus.revdebug.com/repository/npm/
```

Then install RevDeBug Cypress plugin:

```
npm install @revdebug/cypress-plugin-revdebug
```

The last step is to add to `cypress/support/index.js` file at bottom:

```javascript
require('@revdebug/cypress-plugin-revdebug')
```

### Expected results

Failed automated tests will report "**RevDeBug trace**" at the top of the error message as shown below. The trace id can be used to locate transactions at "**Trace**" tab at RevDeBug web interface and access detailed frontend and backend code execution recordings.

![Last failed request trace id appended to Cypress error message.](/files/-MX301U4-xJDvIhE6dft)

![The same trace id visible from RevDeBug web interface with detailed recording of whole transaction available to the developer.](/files/-MX74ss6xAqmvCVseujz)