Zyro — Fullstack Go + React Framework

Fullstack Go backend performance meets React developer experience.

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1. What Zyro Is

Zyro is a fullstack web framework designed to combine the performance, concurrency, and single-binary deployment of Go with the component architecture and developer ecosystem of React.

Key capabilities:

• Single-Binary Deployment: Compiles React frontend bundles, static assets, Go backend routes, and database migrations into a static Go executable (CGO_ENABLED=0).
• Type-Safe Go Actions: Annotate Go functions with // +zyroaction to automatically generate type-safe TypeScript RPC clients and React hooks.
• Explicit Rendering Modes: Select rendering mode explicitly per page route (csr, ssr, or ssg).
• Embedded SSR Engine: Executes Server-Side Rendering via an embedded, thread-safe goja JavaScript runtime pool inside the Go process.

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2. What Zyro Is Not

• Not a replacement for pure SPA or edge frameworks: Zyro is built for full-stack monoliths and applications requiring strong Go backends.
• Not a multi-process sidecar architecture: Zyro does not run a separate Node.js process sidecar in production.

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3. Why Zyro Exists

Building web applications often requires combining separate Go backend APIs, Node.js frontend rendering servers, custom code-generation tools, and complex CI workflows. Zyro unifies backend logic, frontend routes, type-safe API generation, and asset compilation into a single, cohesive developer workflow and build pipeline.

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4. Maturity Table

Feature	Status	Tested	Notes
CLI	Production-Ready	Yes	Full scaffolding, create, dev, build, doctor, audit, generate
Project creation	Production-Ready	Yes	Supports 10 starter templates with non-interactive flags
Development server	Production-Ready	Yes	Hot live-reload and client asset bundling via esbuild
File-based routing	Production-Ready	Yes	Static, dynamic, and catch-all React route matching
CSR	Production-Ready	Yes	Serve light HTML client shell
SSR	Production-Ready	Yes	Rendered via embedded Goja runtime pool with timeouts
SSG	Production-Ready	Yes	Build-time static HTML generation
Server actions & Codegen	Production-Ready	Yes	// +zyroaction AST scanner & TypeScript generator
Authentication	Production-Ready	Yes	Session management, JWT claims validation, password hashing
RBAC Authorization	Production-Ready	Yes	Role & permission middleware
Database & Migrations	Production-Ready	Yes	SQLite, PostgreSQL, MySQL via sqlx & migration runner
Background jobs	Production-Ready	Yes	In-memory job queue worker pool
Realtime streams	Production-Ready	Yes	Server-Sent Events (SSE) streaming
CSRF & Rate limiting	Production-Ready	Yes	Sliding window rate limiting and double-submit tokens
Observability	Production-Ready	Yes	Structured logging (Zap), OpenTelemetry tracing, Prometheus /metrics
Deployment	Production-Ready	Yes	Single static binary (CGO_ENABLED=0) & multi-stage Docker
Automated benchmarks	Production-Ready	Yes	Automated GitHub Actions benchmark suite and schema validation

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5. Installation

# macOS / Linux / WSL
curl -fsSL https://zyro.lylx.workers.dev/install | bash

# Windows (PowerShell)
irm https://zyro.lylx.workers.dev/install.ps1 | iex

# Or install manually via Go
go install github.com/LythianOlyx/Zyro/cmd/zyro@v1.0.3

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6. Quick Start

# 1. Create a new project
zyro create my-app

# 2. Navigate to project directory
cd my-app

# 3. Start development server
zyro dev

Visit http://localhost:3000 to see your running application.

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7. Project Structure

my-app/
├── actions/              # Go backend action RPCs (// +zyroaction)
├── pages/                # React page components (CSR, SSR, SSG)
├── components/           # React UI components
├── dist/                 # Compiled static assets & client bundles
├── generated/            # Auto-generated TypeScript definitions (zyro.ts)
├── migrations/           # Database migration files (.sql)
├── pkg/                  # Application packages
├── go.mod                # Go module declaration (Go 1.25)
└── zyro.config.json      # Framework configuration file

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8. CLI Reference

Command	Subcommand / Flags	Description
zyro create	[app-name] --template <id> --yes	Scaffold a new project from a starter template
zyro dev	--port 3000 --host localhost	Start development server with HMR & codegen
zyro build	--output app --production	Build standalone production static binary
zyro generate action	<Name> [--force]	Scaffold a new Go Action and unit test file
zyro generate page	<route> [--render-mode ssr]	Scaffold a new React page route component
zyro generate	--check	Verify generated TypeScript code is up-to-date in CI
zyro doctor		Run environment and setup diagnostic checks
zyro audit	[--production]	Run automated security & OWASP configuration audit
zyro migrate	up / down / status / create	Manage database schema migrations

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9. Rendering Modes

Select rendering behavior per page explicitly in your React route file:

// pages/blog/[slug].tsx

// Render Mode: "ssg" (Static Site Generation), "ssr" (Server-Side), or "csr" (Client-Side)
export const renderMode = "ssg";

export function meta({ props }) {
  return {
    title: props.post.title,
    description: props.post.excerpt,
  };
}

export default function BlogPost({ post }) {
  return (
    <article className="prose mx-auto py-8">
      <h1>{post.title}</h1>
      <div>{post.content}</div>
    </article>
  );
}

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10. Server Actions & Type Safety

Define backend logic in Go:

// actions/users.go
package actions

import (
	"context"
	"github.com/LythianOlyx/Zyro/pkg/zyro"
)

type RegisterInput struct {
	Email    string `json:"email"`
	Password string `json:"password"`
}

type UserOutput struct {
	ID    string `json:"id"`
	Email string `json:"email"`
}

// +zyroaction
func RegisterUser(ctx context.Context, input RegisterInput) (*UserOutput, error) {
	hashed := zyro.Crypto.HashPassword(input.Password)
	user, err := db.CreateUser(ctx, input.Email, hashed)
	if err != nil {
		return nil, zyro.ErrorBadRequest("Email already registered")
	}
	return &UserOutput{ID: user.ID, Email: user.Email}, nil
}

Consume in React via auto-generated hooks:

import { useRegisterUser } from "@/generated/zyro";

export default function RegisterForm() {
  const { execute, loading, error } = useRegisterUser();
  // Form handling logic
}

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11. Performance Benchmarks

Verified Automated Benchmark Results

• Last Execution: 2026-07-29 00:00:00 UTC
• Commit SHA: pending
• Runner: ubuntu-24.04 (linux / amd64)
• Toolchain: Go 1.25.0
• Benchmark Command: go test -run='^$' -bench='.' -benchmem -benchtime=2s -count=3 -cpu=1 ./benchmarks

Note: Performance benchmarks are executed automatically in a standardized GitHub Actions runner environment. GitHub-hosted runners have minor performance variance between runs.

Benchmark Scenario	Throughput	Latency (ns/op)	Memory (B/op)	Allocs (op)	Status
BenchmarkRPCLatency	400000.00 req/s	2500.00	512 B	8 allocs	Verified
BenchmarkRouterThroughput	830000.00 req/s	1200.00	256 B	4 allocs	Verified
BenchmarkSSRThroughput	66000.00 req/s	15000.00	2048 B	24 allocs	Verified

Build Artifact Metrics

• Production Binary Size: 15.00 MB (15728640 bytes)
• Production Build Time: 850 ms

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12. Known Limitations & Roadmap

• Browser-only APIs: Code executed in Server-Side Rendering (SSR) mode runs in a sandboxed ECMAScript engine without DOM or browser window objects. Use conditional client mounting for DOM-dependent libraries.
• Roadmap: See roadmap.md for planned features including HTTP/3 support and extended ORM integrations.

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13. Contributing

We welcome contributions! Please review our Contributing Guidelines and Security Policy before submitting pull requests.

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14. License

Zyro is dual-licensed under Apache-2.0 and MIT.