Explained: OAuth 2.0 Token Exchange

You're building a feature. A user calls your API, your API authenticates them, and then your service needs to call three downstream services to assemble the response. One of those services keeps an audit log — it records which user triggered each operation. So your team wires it up: when your API calls downstream, it forwards the user's token. Simple enough. Except the downstream service starts rejecting requests. The token your API hold… Read More

Okta - PKCE Verification Failed while requesting token

Understand and resolve the "PKCE verification failed" error when integrating with Okta. This guide explains common causes, such as mismatched code verifiers, and provides troubleshooting steps to ensure secure and successful OAuth 2.0 authentication flows. Read More