---
title: "How to Move from Monolith to a Service Based Architecture"
url: https://daily.dev/posts/how-to-move-from-monolith-to-a-service-based-architecture-8wr0lttmy
source_url: https://newsletter.systemdesigncodex.com/p/how-to-move-from-monolith-to-a-service
type: article
source: "System Design Codex"
published: 2026-05-26T08:02:48.285Z
updated: 2026-05-26T08:04:03.059Z
tags: ["career", "architecture", "microservices", "change-data-capture"]
reading_time: 4
upvotes: 74
comments: 3
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# How to Move from Monolith to a Service Based Architecture

**[System Design Codex](https://daily.dev/sources/systemdesigncodex)** · 4 min read · 74 upvotes · 3 comments

## Summary

Migrating from a monolith to microservices requires deliberate patterns rather than a big-bang rewrite. Four key strategies are covered: the Strangler Fig Pattern (incrementally routing traffic to new services via an API gateway), the Parallel Run Pattern (running both systems simultaneously to validate equivalence), the Collaborator Pattern (decorating the monolith with microservices to add features without touching core logic), and Change Data Capture (streaming database changes via tools like Debezium or Kafka Connect to keep microservices in sync). These patterns are designed to work together in sequence to reduce risk and gradually separate concerns.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://newsletter.systemdesigncodex.com/p/how-to-move-from-monolith-to-a-service>

## Community discussion

Top comments from developers on daily.dev.

**@arlangalvez21** · 1 upvotes

> Interesting approach, @joudawad, what do you think?

**@dinospapav** · 0 upvotes

> Pretty useful as a concept.

## Similar posts on daily.dev

- [Monolith to Service Architecture](https://daily.dev/posts/monolith-to-service-architecture-2izyvqort) · System Design Codex · 102 upvotes · 4 comments

---

Tags: [#career](https://daily.dev/tags/career), [#architecture](https://daily.dev/tags/architecture), [#microservices](https://daily.dev/tags/microservices), [#change-data-capture](https://daily.dev/tags/change-data-capture)

[View this post on daily.dev](https://daily.dev/posts/how-to-move-from-monolith-to-a-service-based-architecture-8wr0lttmy)