# Sentry example

## How to use

### Using `create-next-app`

Execute [`create-next-app`](https://github.com/segmentio/create-next-app) with [Yarn](https://yarnpkg.com/lang/en/docs/cli/create/) or [npx](https://github.com/zkat/npx#readme) to bootstrap the example:

```bash
npx create-next-app --example with-sentry with-sentry-app
# or
yarn create next-app --example with-sentry with-sentry-app
```

### Download manually

Download the example:

Install it and run:

**npm**

```bash
npm install
npm run dev
```

**yarn**

```bash
yarn
yarn dev
```

Deploy it to the cloud with [now](https://zeit.co/now) ([download](https://zeit.co/download))

```bash
now
```

## About example

An example showing use of [Sentry](https://sentry.io) to catch & report errors on both client + server side.

### Configuration

You will need a _Sentry DSN_ for your project. You can get it from the Settings of your Project, in **Client Keys (DSN)**, and copy the string labeled **DSN (Public)**.

The Sentry DSN should then be added as an environment variable when running the `dev`, `build`, and `start` scripts in `package.json`:

```bash
{
  "scripts": {
    "dev": "SENTRY_DSN=<dsn> node server.js",
    "build": "SENTRY_DSN=<dsn> next build",
    "start": "SENTRY_DSN=<dsn> NODE_ENV=production node server.js"
  }
}
```

_Note: Setting environment variables in a `package.json` is not secure, it is done here only for demo purposes. See the [`with-dotenv`](../with-dotenv) example for an example of how to set environment variables safely._