CodeRabbit Local Dev Loop

Overview

Set up a fast, reproducible local development workflow for CodeRabbit.

Prerequisites

• Completed coderabbit-install-auth setup

• Node.js 18+ with npm/pnpm

• Code editor with TypeScript support

• Git for version control

Instructions

Step 1: Create Project Structure

my-coderabbit-project/ ├── src/ │ ├── coderabbit/ │ │ ├── client.ts # CodeRabbit client wrapper │ │ ├── config.ts # Configuration management │ │ └── utils.ts # Helper functions │ └── index.ts ├── tests/ │ └── coderabbit.test.ts ├── .env.local # Local secrets (git-ignored) ├── .env.example # Template for team └── package.json

Step 2: Configure Environment

set -euo pipefail

Copy environment template

cp .env.example .env.local

Install dependencies

npm install

Start development server

npm run dev

Step 3: Setup Hot Reload

{ "scripts": { "dev": "tsx watch src/index.ts", "test": "vitest", "test:watch": "vitest --watch" } }

Step 4: Configure Testing

import { describe, it, expect, vi } from 'vitest'; import { CodeRabbitClient } from '../src/coderabbit/client';

describe('CodeRabbit Client', () => { it('should initialize with API key', () => { const client = new CodeRabbitClient({ apiKey: 'test-key' }); expect(client).toBeDefined(); }); });

Output

• Working development environment with hot reload

• Configured test suite with mocking

• Environment variable management

• Fast iteration cycle for CodeRabbit development

Error Handling

Error Cause Solution

Module not found Missing dependency Run npm install

Port in use Another process Kill process or change port

Env not loaded Missing .env.local Copy from .env.example

Test timeout Slow network Increase test timeout

Examples

Mock CodeRabbit Responses

vi.mock('@coderabbit/sdk', () => ({ CodeRabbitClient: vi.fn().mockImplementation(() => ({ // Mock methods here })), }));

Debug Mode

set -euo pipefail

Enable verbose logging

DEBUG=CODERABBIT=* npm run dev

Resources

• CodeRabbit SDK Reference

• Vitest Documentation

• tsx Documentation

Next Steps

See coderabbit-sdk-patterns for production-ready code patterns.