From Flying Circus to Holy Grail: Migrating the Twilio API from PHP to Python

Sam Kitajima-Kimbrel http://pyohio.org/schedule/presentation/230/ Legacy code is a hard problem for any growing application. Complete rewrites are expensive and prone to failure, so how *does* one go about replacing that large, crufty codebase with something easier to maintain? We’ll discuss the strategies used at Twilio to migrate a large REST API, piece by piece, out of a monolithic PHP system into a fleet of services federated by a Python proxy layer.

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