unleash.unleash/website/docs/quickstart.md

title
Quick Start

There are lots of options to get started with Unleash. If you're comfortable with Docker, this is the fastest way to get up and running. If that's not you, here are some additional ways to try Unleash.

1. Set up Unleash with Docker

The easiest way to run Unleash locally is using Git and Docker.

git clone git@github.com:Unleash/unleash.git
cd unleash
docker compose up -d

2. Log in to the Admin UI

Then point your browser to localhost:4242 and log in using:

username: admin
password: unleash4all

3. Create your first flag

1. Navigate to the Feature flags list
2. Click 'New feature flag'
3. Give it a unique name, and click 'Create feature flag'

For a detailed guide on how to create a flag through the UI, you can follow this guide.

4a. Connect a client-side SDK

To try Unleash with a client-side technology, create a front-end token and use <your-unleash-instance>/api/frontend as the API URL.

Now you can open your application code and connect through one of the client-side SDKs.

The following example shows you how you could use the JavaScript SDK to connect to the Unleash demo frontend API:

import { UnleashClient } from "unleash-proxy-client";

const unleash = new UnleashClient({
    url: "https://<your-unleash-instance>/api/frontend",
    clientKey: "<your-token>",
    appName: "<your-app-name>",
});

unleash.on("synchronized", () => {
    // Unleash is ready to serve updated feature flags.

    // Check a feature flag
    if (unleash.isEnabled("some-flag")) {
        // do cool new things when the flag is enabled
    }
});

4b. Connect a backend SDK

To try Unleash with a server-side technology, create a client token and use <your-unleash-instance>/api as the API URL.

Now you can open up your application code and create a connection to Unleash using one of our SDKs. Here's an example using the NodeJS SDK to connect to the Unleash demo instance:

const { initialize } = require("unleash-client");
const unleash = initialize({
    url: "https://<your-unleash-instance>/api/",
    appName: "<your-app-name>",
    customHeaders: {
        Authorization: "<your-token>",
    },
});

unleash.on("synchronized", () => {
    // Unleash is ready to serve updated feature flags.

    if (unleash.isEnabled("some-flag")) {
        // do cool new things when the flag is enabled
    }
});

Additional Ways to Try Unleash

Unleash Demo Instance

For testing purposes, we have set up a demo instance that you can use to test out different use cases before setting up your own instance. You can find the demo instance here: https://app.unleash-hosted.com/demo/

NOTE: This is a demo instance set up with the Pro version. More information on our different versions.

If you don't have your own Unleash instance set up, you can use the Unleash demo instance. In that case, the details are:

Client Side

• API URL: https://app.unleash-hosted.com/demo/api/frontend
• Frontend key: demo-app:default.bf8d2a449a025d1715a28f218dd66a40ef4dcc97b661398f7e05ba67

Server Side

• API URL: https://app.unleash-hosted.com/demo/api
• Client key: 56907a2fa53c1d16101d509a10b78e36190b0f918d9f122d

Curl command to test credentials and retrieve feature flags:

curl https://app.unleash-hosted.com/demo/api/client/features \
-H "Authorization: 56907a2fa53c1d16101d509a10b78e36190b0f918d9f122d";

Unleash Pro & Enterprise Instances

You can run Unleash in the cloud by using our hosted offerings. Please see the plans page to learn more.

Other Local Setup Options

There are several more options to get started locally.