Handling 429 errors during bulk user updates via Genesys Cloud REST API

We are running a script to update user attributes for roughly 2,000 agents. The PATCH requests to /api/v2/users/{id} fail with 429 Too Many Requests after about 50 iterations. The current retry logic uses a fixed 5-second delay. This is inefficient. I need to implement exponential backoff based on the Retry-After header. How should the JavaScript fetch wrapper parse that header to calculate the wait time before retrying the request?

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Ditch the manual fetch wrapper and just use the Node SDK. It handles 429s and Retry-After headers automatically, so you don’t need to reinvent the wheel.

const { PureCloudPlatformClientV2 } = require('genesys-cloud/genesys-cloud-node');
const platformClient = PureCloudPlatformClientV2.create();
// Just call the method; backoff is built-in
await platformClient.UsersApi.postUsers(body);