# Using Ray with Express.js

[Express.js](https://expressjs.com/) is a fast, unopinionated, minimalist web framework for Node.js. Use Ray to help you debug when developing Express.js applications and middleware.

[permafrost-dev/express-ray](https://github.com/permafrost-dev/express-ray)

## Installing the package

```
npm install express-ray
```

```
yarn add express-ray
```

## Installing the plugin

To install the `express-ray` plugin into your Express.js application, call the `install` method provided by the `plugin` import:

```
import express from 'express';
import { plugin as expressRayPlugin } from 'express-ray';

const app = express();

expressRayPlugin.install(app);
```

Once installed, you can use `ray()` from anywhere in your Express.js application:

```
app.get('/', (req, res) => {
    ray('Request received!');
    ray(req.query);

res.send('Hello World!');
});
```

## Usage

All [JavaScript methods](/content/docs/javascript/vanilla-javascript/usage/index.html) are available when using Express.js.

> ## What's next?
>
> Now that Ray is installed in your Express.js project, see what you can use it for.
>
> - [Learn how to use Ray with JavaScript](/content/docs/javascript/vanilla-javascript/usage/index.html)
> - [View all available methods](/content/docs/javascript/vanilla-javascript/reference/index.html)

## Debug without breaking your flow

Ray keeps all your debug output neatly organized in a dedicated desktop app.

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