Hyphen Toggle OpenFeature Web Provider

The Hyphen Toggle OpenFeature Web Provider allows seamless feature flag evaluation using the OpenFeature standard within the Hyphen Toggle platform.

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Table of Contents

1. Getting Started
2. Integration
3. Configuration
4. Contributing
5. License

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Getting Started

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- Ensure you have Node.js and npm installed.
- Have access to a valid Hyphen publicKey and application details.

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To use the Hyphen Toggle OpenFeature Web Provider, install the required packages:

``bash
npm install @openfeature/web-sdk @hyphen/openfeature-web-provider
`

Integration

To integrate the Hyphen Toggle provider into your application, follow these steps:

1. Configure the Provider: Register the HyphenProvider with OpenFeature using your publicKey and provider options.

Add the following setup to your application:
`typescript jsx
import { OpenFeature, ProviderEvents } from '@openfeature/web-sdk';
import { HyphenProvider, HyphenProviderOptions } from '@hyphen/openfeature-web-provider';

const publicKey = 'your-public-key'; // Replace with your Hyphen publicKey

const options: HyphenProviderOptions = {
application: 'your-app-name', // Replace with your application name
environment: 'production', // Replace with the appropriate environment
};

OpenFeature.setProvider(new HyphenProvider(publicKey, options));

createRoot(document.getElementById('root')!).render();
`

2. Set Up the context: Use OpenFeature.setContext to configure the context needed for feature targeting. This context should include relevant user information, typically obtained from an authentication process.
`typescript jsx
OpenFeature.setContext({
targetingKey: user.id,
user: user,
customAttributes: { role: user.role }, // Additional targeting attributes
});

`


3. Evaluate Feature Flags: Use the OpenFeature client to evaluate feature flags in your application.

`typescript jsx
const client = OpenFeature.getClient();
const isEnabled = client.getStringDetails('your-flag-key', 'default value');
`



Configuration

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| Option | Type | Description |
|------------------|--------|------------------------------------------------------------------------------------|
| application | string | The application id or alternate id. |
| environment | string | The environment in which your application is running (e.g., production, staging). |
| horizonUrls | string[] | An array of Hyphen Horizon URLs to use for fetching feature flags. |
| enableToggleUsage | boolean | Enable or disable the logging of toggle usage (telemetry). |

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Provide an EvaluationContext to pass contextual data for feature evaluation.

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| Field | Type | Description |
|---------------------|----------------------|-----------------------------------------------------------------------------|
| targetingKey | string | The key used for caching the evaluation response. |
| ipAddress | string | The IP address of the user making the request. |
| customAttributes | Record | Custom attributes for additional contextual information. |
| user | object | An object containing user-specific information for the evaluation. |
| user.id | string | The unique identifier of the user. |
| user.email | string | The email address of the user. |
| user.name | string | The name of the user. |
| user.customAttributes | Record` | Custom attributes specific to the user. |

Contributing

We welcome contributions to this project! If you'd like to contribute, please follow the guidelines outlined in CONTRIBUTING.md. Whether it's reporting issues, suggesting new features, or submitting pull requests, your help is greatly appreciated!

License

This project is licensed under the MIT License. See the LICENSE file for full details.