# Strategies for Migrating from a Monolith to Microservices

DevFeed: [Strategies for Migrating from a Monolith to Microservices](<https://devfeed.tech/articles/monolith-to-service-architecture-34687.md>)

Original publisher: [Read original article](<https://newsletter.systemdesigncodex.com/p/monolith-to-service-architecture>)

Author: Saurabh Dashora

Published: 2026-06-23T07:55:12Z

Content type: tutorial

Language: en

Sources: [System Design Codex](<https://devfeed.tech/sources/system-design-codex.md>)

Topics: [Architecture & Design](<https://devfeed.tech/topics/architecture-design.md>), [microservices architecture](<https://devfeed.tech/topics/microservices-architecture.md>), [migration](<https://devfeed.tech/topics/migration.md>), [legacy systems](<https://devfeed.tech/topics/legacy-systems.md>), [gateway](<https://devfeed.tech/topics/gateway.md>)

Tags: [api-gateway](<https://devfeed.tech/tags/api-gateway.md>), [architecture](<https://devfeed.tech/tags/architecture.md>), [automated](<https://devfeed.tech/tags/automated.md>), [big-bang](<https://devfeed.tech/tags/big-bang.md>), [feature-flags](<https://devfeed.tech/tags/feature-flags.md>), [incremental](<https://devfeed.tech/tags/incremental.md>), [legacy-systems](<https://devfeed.tech/tags/legacy-systems.md>), [microservices](<https://devfeed.tech/tags/microservices.md>), [migration](<https://devfeed.tech/tags/migration.md>), [monolith](<https://devfeed.tech/tags/monolith.md>), [parallel](<https://devfeed.tech/tags/parallel.md>), [rewrite](<https://devfeed.tech/tags/rewrite.md>), [strategies](<https://devfeed.tech/tags/strategies.md>), [testing](<https://devfeed.tech/tags/testing.md>)

## AI overview

This tutorial outlines patterns for gradually moving from a monolithic architecture to microservices. It describes the Strangler Fig Pattern, Parallel Run Pattern, and Collaborator Pattern, covering techniques such as API gateways, incremental migration, traffic splitting, feature flags, and automated comparison testing.

## Source excerpt

Top Strategies