API Gateway

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Zero Trust Authorization Heimdall OpenFGA Migration Strangler Fig API Gateway Security Architecture

Migrating an Existing App to Heimdall + OpenFGA, One Route at a Time

Part 2: a strangler-fig adoption path for moving a live app to a Zero-Trust gateway and OpenFGA, starting with a single route in shadow mode and expanding without a big-bang rewrite.

Jun 19, 2026 15 min read

Zero Trust Authorization Heimdall OpenFGA ReBAC API Gateway Security PEP PDP Architecture

The Zero-Trust Auth Stack Architects Nod At: Heimdall + OpenFGA

How the gateway forwardAuth to external authorizer to internal JWT to thin services pattern works, built with Heimdall as the PEP and OpenFGA as the Zanzibar-style PDP.

Jun 17, 2026 19 min read

Luis Mori Guerra

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Migrating an Existing App to Heimdall + OpenFGA, One Route at a Time

The Zero-Trust Auth Stack Architects Nod At: Heimdall + OpenFGA

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