Building a Secure Real-Time Messaging App with .NET 8 and Angular 18
The article discusses the development of a secure real-time messaging application using .NET 8 and Angular 18. It emphasizes the importance of security features such as JWT authentication and AES-256-GCM encryption. The author provides a detailed overview of the architecture and key design decisions made to enhance the app's security.
- ▪The application, named SecureChat, incorporates JWT authentication and AES-256-GCM encryption for message security.
- ▪Key design decisions include short-lived JWTs, rotating refresh tokens, and the use of a Redis backplane for scaling SignalR.
- ▪The article also covers implementing rate limiting and security headers to protect against various attacks.
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Record
| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/naimulkarim/building-a-secure-real-time-messaging-app-with-net-8-and-angular-18-jdo |
| Publication time | Fri, 22 May 2026 04:42:50 +0000 |
| Retrieval time | 2026-05-22T05:02:00.539Z |
| Last seen | 2026-05-22T05:02:00.539Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | iEdY-pT84Cal |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| 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.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3139981) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Naimul Karim Posted on May 22 Building a Secure Real-Time Messaging App with .NET 8 and Angular 18 #angular #dotnet #security #tutorial A deep dive into JWT authentication, AES-256-GCM encryption, SignalR, and production security patterns. Introduction Real-time messaging apps are everywhere, but most tutorials gloss over the hard parts — the security. In this post I'll walk you through SecureChat, a production-grade messaging app I built with .NET 8 and Angular 18.
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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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