Strangler fig: retiring a legacy dispatch layer
Read OriginalThe article describes a common problem in long-lived codebases: a legacy dispatch layer consisting of request stubs, wiring-dict lambdas, and coercion functions that add unnecessary complexity. The author recommends using the strangler fig pattern, as named by Martin Fowler, to gradually replace this layer with the framework's built-in routing. Key steps include freezing the current route list with a test, migrating one domain at a time, using native routers and typed schemas, and sharing a DI context. This approach avoids risky rewrites and allows incremental, safe retirement of legacy code.
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