Apollo Local Dev Loop

Overview

Set up efficient local development workflow for Apollo.io integrations with proper environment management, testing, and debugging.

Prerequisites

• Completed apollo-install-auth setup
• Node.js 18+ or Python 3.10+
• Git repository initialized

Instructions

Step 1: Environment Setup

# Create environment files
touch .env .env.example .env.test

# Add to .gitignore
echo '.env' >> .gitignore
echo '.env.local' >> .gitignore

# .env.example (commit this)
APOLLO_API_KEY=your-api-key-here
APOLLO_RATE_LIMIT=100
APOLLO_ENV=development

Step 2: Create Development Client

// src/lib/apollo-dev.ts
import axios from 'axios';

const isDev = process.env.NODE_ENV !== 'production';

export const apolloClient = axios.create({
  baseURL: 'https://api.apollo.io/v1',
  params: { api_key: process.env.APOLLO_API_KEY },
});

// Add request logging in development
if (isDev) {
  apolloClient.interceptors.request.use((config) => {
    console.log(`[Apollo] ${config.method?.toUpperCase()} ${config.url}`);
    return config;
  });

  apolloClient.interceptors.response.use(
    (response) => {
      console.log(`[Apollo] Response: ${response.status}`);
      return response;
    },
    (error) => {
      console.error(`[Apollo] Error: ${error.response?.status}`, error.message);
      return Promise.reject(error);
    }
  );
}

Step 3: Create Mock Server for Testing

// src/mocks/apollo-mock.ts
import { rest } from 'msw';

export const apolloHandlers = [
  rest.post('https://api.apollo.io/v1/people/search', (req, res, ctx) => {
    return res(
      ctx.json({
        people: [
          { id: '1', name: 'Test User', title: 'Engineer', email: 'test@example.com' },
        ],
        pagination: { page: 1, per_page: 10, total_entries: 1 },
      })
    );
  }),

  rest.get('https://api.apollo.io/v1/organizations/enrich', (req, res, ctx) => {
    return res(
      ctx.json({
        organization: {
          name: 'Test Company',
          domain: 'test.com',
          industry: 'Technology',
        },
      })
    );
  }),
];

Step 4: Development Scripts

{
  "scripts": {
    "dev": "NODE_ENV=development tsx watch src/index.ts",
    "dev:mock": "MOCK_APOLLO=true npm run dev",
    "test:apollo": "vitest run src/**/*.apollo.test.ts",
    "apollo:quota": "tsx scripts/check-apollo-quota.ts"
  }
}

Step 5: Quota Monitoring Script

// scripts/check-apollo-quota.ts
import { apolloClient } from '../src/lib/apollo-dev';

async function checkQuota() {
  try {
    const { data } = await apolloClient.get('/auth/health');
    console.log('API Status:', data);
    // Note: Apollo doesn't expose quota directly, track usage manually
  } catch (error: any) {
    if (error.response?.status === 429) {
      console.error('Rate limited! Wait before making more requests.');
    }
  }
}

checkQuota();

Output

• Environment file structure (.env, .env.example)
• Development client with logging interceptors
• Mock server for testing without API calls
• npm scripts for development workflow
• Quota monitoring utility

Error Handling

Error	Cause	Solution
Missing API Key	.env not loaded	Run source .env or use dotenv
Mock Not Working	MSW not configured	Ensure setupServer is called
Rate Limited in Dev	Too many test calls	Use mock server for tests
Stale Credentials	Key rotated	Update .env with new key

Examples

Watch Mode Development

# Terminal 1: Run dev server with watch
npm run dev

# Terminal 2: Test API calls
curl -X POST http://localhost:3000/api/apollo/search \
  -H "Content-Type: application/json" \
  -d '{"domain": "stripe.com"}'

Testing with Mocks

// src/services/apollo.apollo.test.ts
import { describe, it, expect, beforeAll, afterAll } from 'vitest';
import { setupServer } from 'msw/node';
import { apolloHandlers } from '../mocks/apollo-mock';
import { searchPeople } from './apollo';

const server = setupServer(...apolloHandlers);

beforeAll(() => server.listen());
afterAll(() => server.close());

describe('Apollo Service', () => {
  it('searches for people', async () => {
    const results = await searchPeople({ domain: 'test.com' });
    expect(results.people).toHaveLength(1);
    expect(results.people[0].name).toBe('Test User');
  });
});

Resources

• MSW (Mock Service Worker)
• Vitest Testing Framework
• dotenv Documentation

Next Steps

Proceed to apollo-sdk-patterns for production-ready code patterns.