Polyglot Persistence in Microservices: Let the Domain Choose the Database
The article discusses the concept of polyglot persistence in microservices architecture, emphasizing the importance of choosing the right database for each domain. It highlights a case study of an e-commerce project that utilizes three different databases tailored to specific services. This approach allows for loose coupling and independent evolution of schemas across services.
- ▪Polyglot persistence allows the use of different data storage technologies within the same system.
- ▪The e-commerce project examined uses PostgreSQL for the Order Service, MongoDB for the Product Service, and Redis for the Cart Service.
- ▪Each service owns its database exclusively, enforcing boundaries that prevent direct access to another service's data.
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| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/dancodingbr/polyglot-persistence-in-microservices-let-the-domain-choose-the-database-3o7f |
| Publication time | Sat, 23 May 2026 15:01:34 +0000 |
| Retrieval time | 2026-05-23T15:07:27.192Z |
| Last seen | 2026-05-23T15:07:27.192Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
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| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | MzqLv0LpqjpD |
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| Publisher visit | Yes — open original |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3942991) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Daniel Cordeiro Posted on May 23 Polyglot Persistence in Microservices: Let the Domain Choose the Database #microservices #database #springboot #java Introduction One of the most consequential decisions in microservices architecture is data storage.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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