Description

A pattern for migrating a legacy system by gradually replacing specific functionalities with new applications and services. The new system wraps around the old one like a strangler fig tree.

Where to use

• Monolith decomposition.
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• Incremental migration.

Real World Example

An old E-commerce monolith exists. You build a new 'Review Service'. The API Gateway routes '/reviews' to the new service, while everything else still goes to the Monolith.

Code Example

# Code Concept for Strangler Fig Pattern
# This pattern is architectural.

class Service:
    def execute(self):
        # Implementation logic
        pass