Fixing 403 auth errors when you replay traffic

A Spring Boot demo application issues JWT bearer tokens that a test script uses to authenticate and repeatedly call a protected API endpoint. The walkthrough shows how proxymock can record this traffic through its proxy, saving each request and response for inspection in Markdown files or a web interface, then replay it as automated tests. Initial replay fails with 403 responses because the recording contains an expired bearer token, even though a new token is issued during the replayed login request. Proxymock’s Recommendations panel identifies the OAuth token exchange and creates a blueprint that extracts the fresh accessToken from the login response and automatically replaces the recorded token in later authenticated requests. After applying this blueprint, replay succeeds with a 100% match rate, while other potentially sensitive recorded values, such as an email address, can remain unchanged if desired.

Use this post, company, and trend context to find content marketing opportunities, perform competitive analysis, or address product feature gaps via the Plushcap MCP server or the Plushcap API.