Example applications

Composer provides pre-configured example applications to help you get started quickly. These are designed to work with your API keys and can be used to test your checkpoints, while serving as a reference for how the SDKs work together in practice.

Configure repository

Example applications are available on GitHub: https://github.com/spreedly/composer-examples.git — unconfirmed, left as-is, see flag above.

git clone https://github.com/spreedly/composer-examples.git

Navigate to the composer-examples directory and follow the README instructions.

Setup the Node.js backend

1. Navigate to server/node-ts
2. Configure your .env file per the README
3. Run the startup commands per the README

Setup the Next frontend

1. Navigate to client/web-next
2. Configure your .env file per the README
3. Run the startup commands per the README

Experiement with example functionality

Once running, interact with the application to see Composer in action:

1. Track users, sessions, and devices — See how Composer tracks users, sessions, and devices (session replay, device fingerprinting, etc.).
2. Call a Checkpoint — Enter a checkpoint name from the Composer Dashboard and observe how the application responds.
3. Send a Server Event — Send a server event and observe the response.

View developer logs

After sending checkpoints, view logs in the Composer Dashboard under Developer Center > Logs.

Modify checkpoints and test real workflows

Once you've tested an empty workflow, start adding logic to checkpoints. A good starting point is adding an MFA step — see Adding MFA to your Application for more. For a payment-processing example, see Building a transaction processing checkpoint. This demonstrates how multi-step workflows can be built and managed without changing code.