---
title: "Rails 8 SolidCable: Database-Backed WebSockets Guide"
url: https://daily.dev/posts/rails-8-solidcable-database-backed-websockets-guide-a4feupxft
source_url: https://blog.saeloun.com/2026/05/26/rails-8-solid-cable-database-backed-websockets
type: article
source: "Saeloun"
published: 2026-05-26T15:17:57.947Z
updated: 2026-05-26T15:18:19.701Z
tags: ["webdev", "postgresql", "rails"]
reading_time: 5
upvotes: 0
comments: 0
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.

# Rails 8 SolidCable: Database-Backed WebSockets Guide

**[Saeloun](https://daily.dev/sources/saeloun)** · 5 min read · 0 upvotes · 0 comments

## Summary

Rails 8 introduces SolidCable as the default ActionCable adapter, replacing Redis with a database-backed polling approach for WebSocket message delivery. The post covers installation, configuration options (polling interval, message retention, autotrim), real-world usage examples (notifications, dashboards, chat, collaborative editing), Turbo Streams integration, and performance benchmarks. PostgreSQL users can leverage LISTEN/NOTIFY for push-based delivery comparable to Redis up to ~1000 concurrent connections. Key caveats include polling latency (~100ms default), increased database load at scale, and lack of built-in presence tracking. SolidCable is recommended for apps wanting simpler infrastructure without Redis; AnyCable is suggested for very high concurrency scenarios.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.saeloun.com/2026/05/26/rails-8-solid-cable-database-backed-websockets>

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---

Tags: [#webdev](https://daily.dev/tags/webdev), [#postgresql](https://daily.dev/tags/postgresql), [#rails](https://daily.dev/tags/rails)

[View this post on daily.dev](https://daily.dev/posts/rails-8-solidcable-database-backed-websockets-guide-a4feupxft)