All the features you need

The backend is built using Node.js, which acts as the “middleman” between the frontend (Postman) and PLAID’s API.

The workflow starts when the frontend (a web page, a local HTML file, or Postman) requests a link token from the Node.js backend server.

The backend then communicates with PLAID to generate this link token and returns it to the frontend. The frontend uses this token to launch the Plaid Link popup, where the user links a sandbox bank account.

After completing this step, Plaid Link provides a public token, which the frontend immediately sends back to the Node.js backend. The backend then exchanges this public token for a long-lived access token directly with Plaid.

Finally, your frontend (Postman) can request transaction data by sending the access token to your backend, which retrieves the transaction list from Plaid and sends it back as JSON—ready to be shown in a table or used however you like.

This flow keeps sensitive keys hidden in the backend, ensures secure data handling, and gives  full control over how banking data is fetched and displayed.

https://www.notion.so/Plaid-Webflow-Integration-1fe8c978735780549362c54e10c57a87?pvs=4

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