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{{Short description|Computer science architectural pattern}}
In programming, the '''strangler fig pattern''' or '''strangler pattern''' is an [[architectural pattern]] that involves wrapping old code, with the intent of redirecting it to newer code or to log uses of the old code. Created by [[Martin Fowler (software engineer)|Martin Fowler]],<ref name=":0" /> its name derives from the [[strangler fig]] plant, which tends to grow on trees and eventually kill them.
One use of this pattern is during software rewrites. Code can be divided into many small sections, wrapped with the strangler fig pattern, then that section of old code can be swapped out with new code before moving on to the next section. This is less risky and more incremental than swapping out the entire piece of software.<ref name=":0">{{Cite book |last=Newman |first=Sam |title=Monolith to Microservices: Evolutionary Patterns to Transform Your Monolith |publisher=[[O'Reilly Media]] |year=2020 |isbn=978-1-492-07554-7 |pages=79–97}}</ref>
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