Run Auth0 Login, Callback, and Refresh at the Edge

The short answer: If Auth0 already owns identity, the cleanest edge pattern is to centralize callback, profile, and refresh routes in the gateway and keep backend services focused on business logic.

When to read this

• You are using Auth0 and want consistent auth endpoints in front of several services.
• You need a single place for callback and refresh flows.
• You want clearer error handling for upstream Auth0 failures.

What matters in practice

• Define callback, profile, redirect, and refresh paths explicitly.
• Use JWKS or JWKS URI consistently across environments.
• Separate Auth0 transport errors from local route configuration problems.

Concrete example

        {
        "authorizer": {
          "type": "auth0",
          "domain": "$env.AUTH0_DOMAIN",
          "client_id": "$env.AUTH0_CLIENT_ID",
          "client_secret": "$secret.AUTH0_CLIENT_SECRET",
          "redirect_uri": "https://serverlessapigateway.com/api/auth0/callback",
          "jwks_uri": "https://tenant.auth0.com/.well-known/jwks.json",
          "scope": "openid profile email"
        },
        "paths": [
          { "method": "GET", "path": "/api/auth0/callback", "integration": { "type": "auth0_callback" } },
          { "method": "GET", "path": "/api/auth0/profile", "auth": true, "integration": { "type": "auth0_userinfo" } },
          { "method": "GET", "path": "/api/auth0/refresh", "integration": { "type": "auth0_refresh" } }
        ]
      }

The example above is intentionally small because the best gateway configs stay readable. Add only the route, auth, and mapping behavior you actually need.

How this maps to the current gateway

The current codebase already supports the behavior discussed here through its config schema, route matcher, and integration handlers. That is why this project is a good fit for reader-first examples: the docs and blog can point to real, implemented behavior instead of hypothetical gateway features.

What this product does not do

• This repo covers core Auth0 flows, not broader identity orchestration or multi-provider brokering.
• Session UX remains an application concern even if the gateway owns the Auth0 exchanges.

FAQ

Does the gateway verify Auth0 ID tokens?

Yes, using the configured JWKS source.

Can I add post-processing after the callback?

Yes. The callback flow supports a service-binding post-process hook.

Related docs

• auth0 callback route
• auth0 refresh token route
• auth0 error handling

Last reviewed: March 6, 2026