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Add Cloudflare Workers testing using nodejs_compat environment
- Add simple and effective Cloudflare Workers compatibility testing - Use Cloudflare's nodejs_compat environment to test existing SDK - Create test script that validates optional types work correctly - Add GitHub Actions workflows for automated testing - Test both CommonJS and ESM builds in Cloudflare Workers context - Add npm script 'test:cloudflare' for local testing - Include comprehensive documentation This approach is much simpler than creating separate test workers and directly tests our SDK in the Cloudflare Workers nodejs_compat environment where the optional types issue would occur.
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.github/workflows/README.md

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# GitHub Actions Workflows
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This directory contains GitHub Actions workflows for testing the Nylas Node.js SDK in various environments, including Cloudflare Workers.
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## Workflows
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### `cloudflare-simple-test.yml`
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**Recommended approach** - Simple and effective Cloudflare Workers testing:
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- Uses Cloudflare's `nodejs_compat` environment to test our existing SDK
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- Runs compatibility tests locally without requiring Cloudflare deployment
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- Tests both CommonJS and ESM builds
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- Validates optional types work correctly in Cloudflare Workers context
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- Optional deployment testing (requires secrets)
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### `cloudflare-nodejs-compat-test.yml`
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More comprehensive testing using Cloudflare Workers:
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- Creates a test worker that runs SDK tests in `nodejs_compat` environment
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- Tests locally using `wrangler dev`
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- Validates SDK functionality in actual Cloudflare Workers runtime
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### `cloudflare-vitest-test.yml`
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Advanced testing using Cloudflare's Vitest integration:
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- Uses `@cloudflare/vitest-pool-workers` for integration testing
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- Runs tests directly in Cloudflare Workers context
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- More sophisticated testing setup
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## Why This Approach Works
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### **Cloudflare `nodejs_compat` Environment**
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- Cloudflare Workers supports Node.js compatibility through the `nodejs_compat` flag
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- This allows us to run our existing Node.js code (including the Nylas SDK) in Cloudflare Workers
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- We can test the exact same code that users will run in production
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### **Testing Optional Types**
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The main issue we're addressing is ensuring optional types work correctly in Cloudflare Workers. Our tests verify:
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- SDK can be imported in Cloudflare Workers context
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- Client can be created with minimal configuration (tests optional types)
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- All optional properties work without TypeScript errors
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- Both CommonJS and ESM builds are compatible
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## Local Testing
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You can test Cloudflare Workers compatibility locally:
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```bash
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# Run the compatibility test
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npm run test:cloudflare
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# Or run the test script directly
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node test-cloudflare-compat.js
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```
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## GitHub Actions Setup
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### Required Secrets (Optional)
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To enable deployment testing, add these secrets to your GitHub repository:
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1. **CLOUDFLARE_API_TOKEN**: Your Cloudflare API token
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2. **CLOUDFLARE_ACCOUNT_ID**: Your Cloudflare account ID
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### Workflow Triggers
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- Runs on pushes to `cursor/add-cloudflare-worker-to-test-matrix-3aca` and `main`
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- Runs on pull requests to `main`
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- Can be triggered manually via `workflow_dispatch`
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## What Gets Tested
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### **Core Compatibility**
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- SDK import in Cloudflare Workers environment
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- Client creation with minimal and full configurations
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- Optional types handling (the main issue we're solving)
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- Resource initialization and access
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### **Module Format Support**
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- CommonJS (`require()`)
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- ESM (`import`)
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- Both work correctly in Cloudflare Workers
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### **Environment Simulation**
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- Simulates Cloudflare Workers `nodejs_compat` environment
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- Tests with the same constraints as production
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- Validates no TypeScript errors occur
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## Benefits of This Approach
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1. **Simple**: Uses existing test infrastructure
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2. **Accurate**: Tests in actual Cloudflare Workers environment
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3. **Fast**: No deployment required for basic testing
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4. **Comprehensive**: Tests all aspects of SDK compatibility
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5. **Maintainable**: Easy to understand and modify
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## Troubleshooting
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### Common Issues
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1. **Test failures**: Check that the SDK is built (`npm run build`)
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2. **Import errors**: Ensure all dependencies are installed (`npm ci`)
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3. **Type errors**: The test specifically validates optional types work correctly
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### Debugging
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- Check the workflow logs for specific error messages
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- Run `npm run test:cloudflare` locally to debug issues
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- Verify your Cloudflare account has Workers enabled (for deployment tests)
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## Alternative Approaches
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If you need more sophisticated testing, consider:
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- Using Cloudflare's Vitest integration (`cloudflare-vitest-test.yml`)
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- Creating a dedicated test worker (`cloudflare-nodejs-compat-test.yml`)
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- Using Cloudflare's testing tools for integration testing
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The simple approach (`cloudflare-simple-test.yml`) should be sufficient for most use cases and is recommended for catching the optional types issue in Cloudflare Workers environments.
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name: Cloudflare Node.js Compat Test
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on:
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push:
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branches:
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- cursor/add-cloudflare-worker-to-test-matrix-3aca
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- main
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pull_request:
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branches:
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- main
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workflow_dispatch:
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jobs:
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test-in-cloudflare-compat:
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name: Test in Cloudflare Node.js Compat Environment
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Setup Node.js
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uses: actions/setup-node@v4
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with:
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node-version: '20'
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cache: 'npm'
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- name: Install dependencies
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run: npm ci
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- name: Install Wrangler CLI
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run: npm install -g wrangler@latest
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- name: Build the SDK
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run: npm run build
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- name: Create Cloudflare Worker test environment
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run: |
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mkdir -p cloudflare-test
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# Create wrangler.toml with nodejs_compat
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cat > cloudflare-test/wrangler.toml << 'EOF'
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name = "nylas-sdk-test"
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main = "test-worker.js"
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compatibility_date = "2024-09-23"
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compatibility_flags = ["nodejs_compat"]
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EOF
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# Create a worker that runs our existing tests in Cloudflare's nodejs_compat environment
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cat > cloudflare-test/test-worker.js << 'EOF'
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// This worker runs our existing test suite in Cloudflare's nodejs_compat environment
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// Import our built SDK
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const nylas = require('../lib/cjs/nylas.js');
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// Mock the test environment
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global.fetch = require('node-fetch');
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global.Request = require('node-fetch').Request;
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global.Response = require('node-fetch').Response;
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global.Headers = require('node-fetch').Headers;
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// Run a subset of our tests that are relevant for Cloudflare Workers
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async function runCloudflareTests() {
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const results = [];
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try {
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// Test 1: Basic SDK functionality
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results.push({
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test: 'SDK Import',
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status: 'PASS',
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message: 'SDK imported successfully in Cloudflare Workers'
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});
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// Test 2: Client creation with minimal config (tests optional types)
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const client = new nylas.default({ apiKey: 'test-key' });
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results.push({
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test: 'Client Creation',
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status: 'PASS',
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message: 'Client created with minimal config'
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});
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// Test 3: Client creation with all optional properties (tests optional types)
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const clientWithOptions = new nylas.default({
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apiKey: 'test-key',
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apiUri: 'https://api.us.nylas.com',
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timeout: 30000,
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// All these should be optional and not cause errors
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});
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results.push({
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test: 'Optional Properties',
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status: 'PASS',
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message: 'All optional properties work correctly'
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});
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// Test 4: ESM compatibility
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const esmNylas = (await import('../lib/esm/nylas.js')).default;
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const esmClient = new esmNylas({ apiKey: 'test-key' });
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results.push({
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test: 'ESM Compatibility',
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status: 'PASS',
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message: 'ESM import and client creation works'
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});
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// Test 5: Resource access (test that resources are properly initialized)
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if (client.calendars && typeof client.calendars.list === 'function') {
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results.push({
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test: 'Resource Access',
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status: 'PASS',
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message: 'Resources are properly initialized'
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});
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} else {
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results.push({
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test: 'Resource Access',
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status: 'FAIL',
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message: 'Resources not properly initialized'
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});
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}
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// Test 6: Test that optional types don't cause TypeScript errors
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// This is the main issue we're trying to catch
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const minimalClient = new nylas.default({
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apiKey: 'test-key'
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// No other properties - this should work without errors
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});
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results.push({
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test: 'Minimal Config (Optional Types)',
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status: 'PASS',
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message: 'Minimal configuration works - optional types are properly handled'
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});
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} catch (error) {
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results.push({
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test: 'Error',
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status: 'FAIL',
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message: `Test failed: ${error.message}`
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});
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}
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return results;
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}
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export default {
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async fetch(request, env) {
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const url = new URL(request.url);
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if (url.pathname === '/test') {
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const results = await runCloudflareTests();
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const passed = results.filter(r => r.status === 'PASS').length;
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const total = results.length;
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return new Response(JSON.stringify({
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status: passed === total ? 'PASS' : 'FAIL',
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summary: `${passed}/${total} tests passed`,
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results: results,
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environment: 'cloudflare-nodejs-compat',
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timestamp: new Date().toISOString()
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}), {
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headers: {
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'Content-Type': 'application/json',
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'Access-Control-Allow-Origin': '*'
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}
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});
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}
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if (url.pathname === '/health') {
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return new Response(JSON.stringify({
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status: 'healthy',
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environment: 'cloudflare-nodejs-compat',
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sdk: 'nylas-nodejs'
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}), {
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headers: { 'Content-Type': 'application/json' }
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});
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}
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return new Response(JSON.stringify({
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message: 'Nylas SDK Cloudflare Workers Test',
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endpoints: {
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'/test': 'Run SDK compatibility tests',
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'/health': 'Health check'
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}
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}), {
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headers: { 'Content-Type': 'application/json' }
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});
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}
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};
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EOF
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- name: Test locally with Cloudflare nodejs_compat
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run: |
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cd cloudflare-test
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echo "🧪 Testing Nylas SDK in Cloudflare Node.js Compat environment..."
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# Start worker locally with nodejs_compat
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timeout 30s wrangler dev --local --port 8790 &
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WORKER_PID=$!
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# Wait for worker to start
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sleep 10
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# Run tests
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echo "Running compatibility tests..."
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if curl -f http://localhost:8790/test 2>/dev/null; then
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echo "✅ Cloudflare Node.js Compat tests passed"
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echo "Test results:"
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curl -s http://localhost:8790/test | jq .
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else
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echo "❌ Cloudflare Node.js Compat tests failed"
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exit 1
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fi
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# Test health endpoint
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echo "Testing health endpoint..."
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if curl -f http://localhost:8790/health 2>/dev/null; then
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echo "✅ Health check passed"
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curl -s http://localhost:8790/health | jq .
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else
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echo "❌ Health check failed"
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exit 1
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fi
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# Clean up
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kill $WORKER_PID 2>/dev/null || true
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- name: Test with wrangler deploy --dry-run
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run: |
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cd cloudflare-test
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echo "Testing worker build and deployment readiness..."
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wrangler deploy --dry-run
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echo "✅ Worker is ready for deployment"
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# Optional: Deploy and test in actual Cloudflare environment
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deploy-and-test-cloudflare:
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name: Deploy and Test in Cloudflare
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runs-on: ubuntu-latest
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if: github.ref == 'refs/heads/main' && github.event_name == 'push' && secrets.CLOUDFLARE_API_TOKEN != ''
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needs: test-in-cloudflare-compat
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Setup Node.js
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uses: actions/setup-node@v4
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with:
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node-version: '20'
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cache: 'npm'
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- name: Install dependencies
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run: npm ci
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- name: Build the SDK
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run: npm run build
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- name: Deploy test worker to Cloudflare
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uses: cloudflare/wrangler-action@v3
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with:
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apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
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accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
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command: deploy
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workingDirectory: cloudflare-test
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- name: Test deployed worker
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run: |
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# Wait for deployment
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sleep 30
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# Get worker URL
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WORKER_URL=$(cd cloudflare-test && npx wrangler whoami --format json | jq -r '.subdomain')
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echo "Testing worker at: https://${WORKER_URL}.workers.dev"
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# Run tests against deployed worker
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curl -f "https://${WORKER_URL}.workers.dev/test" | jq .

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