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next.js/examples/with-dotenv/README.md
HaNdTriX d3f1fa630e Rewrite with-dotenv example (#4924)
## Issue

I decided to rewrite the [with-dotenv](https://github.com/zeit/next.js/tree/canary/examples/with-dotenv) using [dotenv-webpack](https://github.com/mrsteele/dotenv-webpack) example because:

- changes doesn't get applied  (#4748, brysgo/babel-plugin-inline-dotenv#13)
- the production mode doesn't work at all
- this approach has already been used in the [examples/relay-modern](9320d9f006/examples/with-relay-modern/next.config.js)
- it is [documented](https://webpack.js.org/plugins/environment-plugin/#dotenvplugin) by webpack

## Alternatives

* remove/deprecate example
* fix babel-plugin-inline-dotenv

## Related

Closes: #4748
2018-08-08 09:01:00 -07:00

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# With Dotenv 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-dotenv with-dotenv-app
# or
yarn create next-app --example with-dotenv with-dotenv-app
```
### Download manually
Download the example:
```bash
curl https://codeload.github.com/zeit/next.js/tar.gz/canary | tar -xz --strip=2 next.js-canary/examples/with-dotenv
cd with-dotenv
```
Install it and run:
```bash
npm install
npm run dev
# or
yarn
yarn dev
```
Deploy it to the cloud with [now](https://zeit.co/now) ([download](https://zeit.co/download))
```bash
now
```
## The idea behind the example
This example shows how to inline env vars.
**Please note**:
* It is a bad practice to commit env vars to a repository. Thats why you should normally [gitignore](https://git-scm.com/docs/gitignore) your `.env` file.
* As soon as you are using an env var in your code it will be publicly available and exposed to the client.
* If you want to have more control of what is exposed to the client check out [tusbar/next-runtime-dotenv](https://github.com/tusbar/next-runtime-dotenv).
* Env vars are set (inlined) at build time. If you need to configure your app on rutime check out [examples/with-universal-configuration-runtime](../with-universal-configuration-runtime)