SolRengine
announcement

Hello, SolRengine: Rails Meets Solana

Introducing SolRengine — an open-source framework of Ruby gems for building Solana dApps with Rails 8. Why we built it, what it does, and what's next.

· moviendo.me

Why Rails + Solana?

Rails is the most productive web framework. Solana is the fastest blockchain. Until now, nobody has connected them properly.

The default path for Solana dApp developers is Next.js with a pile of adapters. It works, but it’s not the only way. Rails gives you conventions, background jobs, caching, real-time updates, and a mature ecosystem — all things you need when building production dApps.

SolRengine bridges this gap with 7 modular gems that handle the hard parts.

The Gems

Gem What it does
solrengine-auth Sign In With Solana (SIWS) — wallet-based authentication
solrengine-rpc Solana JSON-RPC client for Ruby
solrengine-tokens Token metadata + USD prices via Jupiter
solrengine-transactions SOL transfers with confirmation tracking
solrengine-realtime WebSocket account monitoring + Turbo Streams
solrengine-programs Anchor IDL parsing + Borsh encoding
solrengine Meta-gem that bundles everything

All gems are published on RubyGems and ready to use:

bundle add solrengine

How It Works

The design principle is simple: server-side RPC, client-side signing.

All blockchain reads (balances, tokens, transaction history) happen in Ruby via solrengine-rpc. Transaction signing happens in the browser via @solana/kit and Wallet Standard. This keeps private keys out of the server while leveraging Rails for everything else.

# Fetch a wallet's SOL balance in your controller
client = Solrengine::Rpc::Client.new
balance = client.get_balance(current_user.wallet_address)

# Authenticate with a Solana wallet
class SessionsController < ApplicationController
  def create
    result = Solrengine::Auth.verify(
      signature: params[:signature],
      message: params[:message],
      public_key: params[:public_key]
    )

    if result.valid?
      user = User.find_or_create_by(wallet_address: result.public_key)
      session[:user_id] = user.id
    end
  end
end

Showcase Apps

We’ve built two apps to demonstrate the framework:

  • WalletTrain (source) — A full wallet app with auth, token portfolio, SOL transfers, and real-time updates. 54 passing tests.
  • PiggyBank — Time-locked SOL savings using a custom Anchor program. Demonstrates solrengine-programs with Borsh encoding and IDL parsing.

What’s Next

We’re focused on growing the Solana + Rails ecosystem:

  • More showcase dApps (tip jar, token-gated content)
  • A blog right here on solrengine.org (you’re reading it!)
  • Documentation site
  • Solana Foundation grant application

If you’re a Rails developer curious about Solana, or a Solana developer tired of JavaScript fatigue, try the live demo or explore the source.

SolRengine is MIT licensed and built by moviendo.me.

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