chore(example): update examples to use srvx #3790

NathanFlurry · 2026-01-08T01:02:59Z

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railway-app · 2026-01-08T01:03:05Z

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NathanFlurry · 2026-01-08T01:03:25Z

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claude · 2026-01-08T01:06:28Z

Pull Request Review: Update examples to use srvx

This PR migrates the chat-room example from a dual dev server setup (separate frontend/backend) to a unified development experience using vite-plugin-srvx, and adds comprehensive documentation for example structure. Overall, this is a solid improvement that simplifies the developer experience. Here are my findings:

✅ Strengths

1. Excellent Documentation

The new examples/CLAUDE.md is comprehensive and well-structured:

Clear patterns for three different example types (unified vite-plugin-srvx, separate dev servers, backend-only)
Complete configuration templates for all necessary files
Good code examples with explanatory comments
Helpful TODO section tracking known issues across examples

2. Simplified Development Experience

The migration to vite-plugin-srvx greatly improves DX:

Single npm run dev command instead of concurrently running two servers
No manual proxy configuration needed
Cleaner dependency tree (removed tsup, concurrently, prompts)
Removed unused CLI script (scripts/cli.ts)

3. Correct Dynamic API URL

examples/chat-room/frontend/App.tsx:5 - Changed from hardcoded http://localhost:5173/api/rivet to ${location.origin}/api/rivet which is more robust for different deployment environments.

⚠️ Issues to Address

1. Dependency Misplacement (Priority: Medium)

examples/chat-room/package.json:13-33

According to the new documentation (examples/CLAUDE.md:151), srvx should be in dependencies (not devDependencies) since it is used by the start script for production.

Current:

"devDependencies": {
  ...
},
"dependencies": {
  "srvx": "^0.10.0"
}

This is actually correct ✅ - the change was made properly in this PR.

However, concurrently is still in devDependencies but is no longer used and should be removed per the documentation (examples/CLAUDE.md:406).

2. TODO Comment Without Context (Priority: Low)

rivetkit-typescript/packages/rivetkit/src/registry/serve.ts:6-8,19-20

// TODO: Go back to dynamic import for this
import getPort from 'get-port';

// TODO: Fix this
// const getPortModule = "get-port";

These TODO comments lack context about why dynamic imports are preferred or what needs fixing. Consider:

Why was dynamic import originally used? (Probably webpack/bundler compatibility)
What breaks with static imports?
Is there a tracking issue?

Recommendation: Add more context or create a GitHub issue and reference it.

3. Incomplete Example Cleanup (Priority: Low)

The PR adds a TODO list in examples/CLAUDE.md:398-409 but does not fully address all items for the chat-room example:

✅ Removed scripts/ directory
✅ Removed tsup.config.ts
✅ Removed prompts dependencies
✅ Moved srvx to dependencies
❌ concurrently is still in devDependencies (line 20) but unused

🔍 Code Quality Observations

Good Practices Followed:

✅ Using location.origin for dynamic API URLs
✅ Proper package.json script ordering
✅ Consistent use of vite-plugin-srvx pattern
✅ Documentation matches implementation

Minor Style Notes:

rivetkit-typescript/packages/rivetkit/package.json:168-183 - Dependencies were alphabetically sorted, which is good for maintainability
The index.html move from frontend/index.html to root is correct for vite-plugin-srvx pattern

🛡️ Security & Performance

✅ No security concerns identified
✅ No performance regressions expected
✅ The unified dev server should actually improve development performance by eliminating proxy overhead

🧪 Testing

The PR does not modify test files, which is appropriate since the functionality remains the same, only the build/dev setup changed. However:

Recommendation: Manually verify that:

npm run dev works correctly
npm run build produces correct output
npm run start serves the built app properly
npm run test still passes

📋 Recommendations

Must Fix:

Remove unused concurrently from devDependencies in examples/chat-room/package.json

Should Fix:

Improve TODO comments in serve.ts with context or issue links

Nice to Have:

Apply these same updates to other examples in the repository (as outlined in the TODO list)

Summary

This is a well-executed refactor that meaningfully improves the developer experience. The addition of comprehensive documentation is particularly valuable. The main issue is the leftover concurrently dependency, which should be removed to keep dependencies clean.

Overall Assessment: ✅ Approve with minor changes requested

Once concurrently is removed from devDependencies, this PR is ready to merge.

claude · 2026-01-08T22:35:59Z

PR Review - Update Examples to Use srvx

Summary

This PR migrates the chat-room example from a separate frontend/backend dev server setup to a unified development experience using vite-plugin-srvx. It also adds comprehensive documentation for example project structure and patterns.

✅ Strengths

1. Excellent Documentation

The new examples/CLAUDE.md (458 lines) is comprehensive and well-structured
Clear guidance on three different project patterns (unified, separated, backend-only)
Explicit ESM import requirements with examples
The TODO checklist at the end helps track remaining cleanup work
EXAMPLE_PROJECT_STRUCTURE.md provides excellent rationale for design decisions

2. Simplified Development Experience

Consolidating from dev:backend + dev:frontend → single dev command
Reduces cognitive overhead for developers
Better alignment with Vercel deployment model

3. Correct Dependency Management

Moved @hono/node-server, @hono/node-ws, and srvx to dependencies (they're needed at runtime)
Removed unused prompts and @types/prompts (CLI script removed)
Cleaned up scripts directory

4. ESM Compliance

Added allowImportingTsExtensions and rewriteRelativeImportExtensions to tsconfig
Updated imports to use .ts extensions (./actors.ts, ./App.tsx)
Critical for Vercel deployment

5. Vercel Configuration

Added vercel.json with "framework": "hono" to prevent Vite auto-detection issues
Good catch - this is a subtle but important fix

6. Proper File Structure

Moved index.html to root (Vite convention)
Simplified vite.config.ts with srvx plugin
Removed unnecessary tsup.config.ts

⚠️ Issues to Address

1. Leftover Dependency (Minor)

Location: examples/chat-room/package.json:18

"concurrently": "^8.2.2",

Issue: This dependency is still present in devDependencies but is no longer used after removing the separate dev server pattern.

Fix: Remove this line from devDependencies.

2. TODO Comments in Production Code (Medium)

Location: rivetkit-typescript/packages/rivetkit/src/registry/serve.ts:6-7, :19-21

// TODO: Go back to dynamic import for this
import getPort from "get-port";

// Inside function:
// TODO: Fix this
// const getPortModule = "get-port";
// const { default: getPort } = await import(/* webpackIgnore: true */ getPortModule);

Issue:

The static import of get-port replaces a dynamic import pattern
This could cause bundling issues or unnecessary dependencies in environments where serve() isn't used
The TODO comments suggest this is a workaround, not a final solution

Impact:

May increase bundle size for examples using registry but not calling serve()
Could cause issues with bundlers that don't handle ESM-only packages well

Recommendation:

If dynamic imports are problematic, document why in the TODO comment
Consider making get-port optional with graceful degradation
Or revert to dynamic imports if the bundling issues can be resolved
At minimum, expand the TODO to explain the issue and any attempted solutions

Question: Why was this change necessary? Is there a bundler issue that dynamic imports were causing?

Note: Verified that get-port is already in rivetkit's dependencies at ^7.1.0, so no missing dependency issue.

3. Branch Name in Script (Needs Update Before Merge)

Location: scripts/vercel/generate-deploy-url.ts:15

const BRANCH = "01-07-chore_example_update_examples_to_use_srvx";

Issue: This hardcodes the PR branch name instead of a default/main branch.

Fix: Before merging, this should be updated to whatever the target branch is (likely "main" or "update-examples" or dynamically determined).

📝 Suggestions

1. Consider Adding a Migration Guide

Since this changes the example structure significantly, it might help users to have:

A brief migration guide in the PR description or examples/CLAUDE.md
Explanation of what changed and why (unified dev server benefits)

2. Document the `public/` Directory

The new structure mentions public/ for static files, but:

Should there be a .gitkeep in examples/chat-room/public/?
Or does Vite create this automatically during build?
Worth clarifying in the documentation

3. Consistency in Documentation Ordering

In examples/CLAUDE.md, the import order in vite.config.ts varies:

Line 209-214: defineConfig → react → srvx (grouped by source)
Line 220: react → defineConfig (alphabetical within source)

Minor issue, but recommend: Pick one ordering convention (I'd suggest grouping by source, then alphabetical).

🧪 Testing Recommendations

Test the example locally:

cd examples/chat-room
pnpm install
pnpm dev       # Verify unified dev server works
pnpm build     # Verify build works
pnpm start     # Verify production mode works
pnpm test      # Verify tests pass

Test Vercel deployment:
- Deploy to a preview environment
- Verify framework detection (check build logs for "Hono" framework)
- Verify WebSocket connections work
- Verify static files are served from CDN
Test across runtimes:
- Node.js (most critical)
- Bun (if supported)
- Deno (if supported)

📊 Overall Assessment

Code Quality: ⭐⭐⭐⭐ (4/5)

Well-structured changes with excellent documentation
One medium issue (TODO comments suggest incomplete refactoring)
Minor cleanup items (leftover dependency, branch name)

Best Practices: ⭐⭐⭐⭐⭐ (5/5)

Follows ESM standards correctly
Proper dependency categorization (prod vs dev)
Good separation of concerns (docs, configs, code)
Comprehensive documentation of architectural decisions

Security: ✅ No concerns

Performance: ✅ Should improve dev experience (single process vs two)

Documentation: ⭐⭐⭐⭐⭐ (5/5)

Exceptional documentation quality
Clear rationale for design decisions
Good examples and patterns

✅ Approval Status

Minor issues to address:

⚠️ Remove unused concurrently dependency
⚠️ Branch name update (can be done before merge)
💬 Clarification on the dynamic import → static import change (medium priority)

The PR is nearly ready to merge. The documentation improvements alone are valuable, and the unified dev server pattern is a significant UX improvement. The TODO comments in serve.ts should be addressed or better documented, but they don't block merging if there's a valid reason for the change.

Review generated by Claude Code on 2026-01-09

vercel · 2026-01-09T21:20:06Z

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pkg-pr-new · 2026-01-09T21:22:26Z

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@rivetkit/engine-runner-protocol

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commit: 734bcaf

graphite-app · 2026-01-09T21:23:16Z

Merge activity

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Jan 9, 9:23 PM UTC: CI is running for this pull request on a draft pull request (#3804) due to your merge queue CI optimization settings.
Jan 9, 9:24 PM UTC: Merged by the Graphite merge queue via draft PR: #3804.

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chore(engine): add support for epoxy debugging #3794

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chore(examples): update examples to standardized format #3799

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fix(rivetkit): fix runner reconnection bug #3800

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chore(rivetkit): update cloudflare workers and nextjs to latest #3803

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Pull Request Review: Update examples to use srvx

✅ Strengths

1. Excellent Documentation

2. Simplified Development Experience

3. Correct Dynamic API URL

⚠️ Issues to Address

1. Dependency Misplacement (Priority: Medium)

2. TODO Comment Without Context (Priority: Low)

3. Incomplete Example Cleanup (Priority: Low)

🔍 Code Quality Observations

Good Practices Followed:

Minor Style Notes:

🛡️ Security & Performance

🧪 Testing

📋 Recommendations

Must Fix:

Should Fix:

Nice to Have:

Summary

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PR Review - Update Examples to Use srvx

Summary

✅ Strengths

1. Excellent Documentation

2. Simplified Development Experience

3. Correct Dependency Management

4. ESM Compliance

5. Vercel Configuration

6. Proper File Structure

⚠️ Issues to Address

1. Leftover Dependency (Minor)

2. TODO Comments in Production Code (Medium)

3. Branch Name in Script (Needs Update Before Merge)

📝 Suggestions

1. Consider Adding a Migration Guide

2. Document the public/ Directory

3. Consistency in Documentation Ordering

🧪 Testing Recommendations

📊 Overall Assessment

✅ Approval Status

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2. Document the `public/` Directory

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