How to Integrate Feature Flags in NestJS

Read the blog post here

A sample app demonstrating how to integrate ConfigCat feature flags into a NestJS application.

Build & Run

Prerequisites

• A code editor, e.g., Visual Studio Code.
• Node.js version 22 or higher installed on your machine.

Run the app

1. Clone the repository.

git clone git@github.com:configcat-labs/feature-flags-in-nestjs-sample.git

2. Navigate to the project directory and install the dependencies.

cd feature-flags-in-nestjs-sample
npm install

3. Add your ConfigCat SDK Key to the src/configcat.service.ts file, and then add your feature flag key to the app.controller.ts file.

4. Start the application.

npm run start:dev

Learn more

Useful links to technical resources.

• ConfigCat - Feature flag and configuration management service.
• NestJS - A progressive Node.js framework for building efficient, reliable, and scalable server-side applications.
• ConfigCat SDK for Node.js - The official ConfigCat SDK for Node.js.

ConfigCat supports many other frameworks and languages. Check out the full list of supported SDKs here.

You can also explore other code samples for various languages, frameworks, and topics in ConfigCat labs on GitHub.

Keep up with ConfigCat on X, Facebook, LinkedIn, and GitHub.

Author

Chavez Harris

Contributions

Contributions are welcome!