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| 1 | +# Nylas Grants Examples |
| 2 | + |
| 3 | +This directory contains examples demonstrating how to work with grants using the Nylas Node.js SDK. Grants represent authenticated connections between your application and email/calendar providers like Gmail, Outlook, Yahoo, and others. |
| 4 | + |
| 5 | +## What are Grants? |
| 6 | + |
| 7 | +In the Nylas API, a **Grant** represents an authenticated connection to a user's email or calendar account. Each grant contains: |
| 8 | + |
| 9 | +- **Authentication details** - OAuth tokens and provider information |
| 10 | +- **Scope permissions** - What data your app can access (email, calendar, contacts, etc.) |
| 11 | +- **Account metadata** - Email address, provider type, creation/update timestamps |
| 12 | +- **Status information** - Whether the grant is valid or needs re-authentication |
| 13 | + |
| 14 | +## Examples Overview |
| 15 | + |
| 16 | +The `grants.ts` file demonstrates comprehensive grant management including: |
| 17 | + |
| 18 | +### 📋 **Basic Operations** |
| 19 | +- **List all grants** - Retrieve all authenticated accounts |
| 20 | +- **Fetch specific grant** - Get detailed information about a single grant |
| 21 | +- **Pagination** - Handle large numbers of grants efficiently |
| 22 | + |
| 23 | +### 🔄 **Sorting & Filtering** |
| 24 | +- **Sort by creation date** - See newest or oldest grants first |
| 25 | +- **Sort by update date** - Find recently modified grants |
| 26 | +- **Filter by provider** - Show only Gmail, Outlook, etc. |
| 27 | +- **Filter by status** - Find valid, invalid, or expired grants |
| 28 | +- **Filter by date range** - Grants created in specific time periods |
| 29 | + |
| 30 | +### 🎯 **Advanced Features** |
| 31 | +- **Multiple filters** - Combine provider, status, and date filters |
| 32 | +- **Client-side grouping** - Organize grants by provider or other criteria |
| 33 | +- **Scope analysis** - Find grants with specific permissions |
| 34 | +- **Rate limit monitoring** - Track API usage limits |
| 35 | + |
| 36 | +## Quick Start |
| 37 | + |
| 38 | +### 1. Set up environment |
| 39 | +Create a `.env` file in the `examples` directory: |
| 40 | +```bash |
| 41 | +NYLAS_API_KEY=your_api_key_here |
| 42 | +NYLAS_API_URI=https://api.us.nylas.com # Optional: defaults to US API |
| 43 | +``` |
| 44 | + |
| 45 | +### 2. Install dependencies |
| 46 | +```bash |
| 47 | +cd examples |
| 48 | +npm install |
| 49 | +``` |
| 50 | + |
| 51 | +### 3. Run the example |
| 52 | +```bash |
| 53 | +# Using ts-node (recommended for development) |
| 54 | +npx ts-node grants/grants.ts |
| 55 | + |
| 56 | +# Or compile and run |
| 57 | +npm run build |
| 58 | +node dist/grants/grants.js |
| 59 | +``` |
| 60 | + |
| 61 | +## Example Functions |
| 62 | + |
| 63 | +### Basic Listing |
| 64 | +```typescript |
| 65 | +// List all grants |
| 66 | +const grants = await nylas.grants.list(); |
| 67 | + |
| 68 | +// List with pagination |
| 69 | +const grants = await nylas.grants.list({ |
| 70 | + queryParams: { |
| 71 | + limit: 10, |
| 72 | + offset: 0, |
| 73 | + }, |
| 74 | +}); |
| 75 | +``` |
| 76 | + |
| 77 | +### Sorting |
| 78 | +```typescript |
| 79 | +// Sort by creation date (newest first) |
| 80 | +const grants = await nylas.grants.list({ |
| 81 | + queryParams: { |
| 82 | + sortBy: 'created_at', |
| 83 | + orderBy: 'desc', |
| 84 | + }, |
| 85 | +}); |
| 86 | + |
| 87 | +// Sort by update date (most recently updated first) |
| 88 | +const grants = await nylas.grants.list({ |
| 89 | + queryParams: { |
| 90 | + sortBy: 'updated_at', |
| 91 | + orderBy: 'desc', |
| 92 | + }, |
| 93 | +}); |
| 94 | +``` |
| 95 | + |
| 96 | +### Filtering |
| 97 | +```typescript |
| 98 | +// Filter by provider |
| 99 | +const gmailGrants = await nylas.grants.list({ |
| 100 | + queryParams: { |
| 101 | + provider: 'google', |
| 102 | + }, |
| 103 | +}); |
| 104 | + |
| 105 | +// Filter by status |
| 106 | +const validGrants = await nylas.grants.list({ |
| 107 | + queryParams: { |
| 108 | + grantStatus: 'valid', |
| 109 | + }, |
| 110 | +}); |
| 111 | + |
| 112 | +// Filter by date range (last 30 days) |
| 113 | +const thirtyDaysAgo = Math.floor((Date.now() - (30 * 24 * 60 * 60 * 1000)) / 1000); |
| 114 | +const recentGrants = await nylas.grants.list({ |
| 115 | + queryParams: { |
| 116 | + since: thirtyDaysAgo, |
| 117 | + }, |
| 118 | +}); |
| 119 | +``` |
| 120 | + |
| 121 | +### Fetching Individual Grants |
| 122 | +```typescript |
| 123 | +// Fetch a specific grant by ID |
| 124 | +const grant = await nylas.grants.find({ |
| 125 | + grantId: 'grant-id-here', |
| 126 | +}); |
| 127 | + |
| 128 | +console.log(`Grant for ${grant.data.email} (${grant.data.provider})`); |
| 129 | +console.log(`Scopes: ${grant.data.scope.join(', ')}`); |
| 130 | +console.log(`Status: ${grant.data.grantStatus}`); |
| 131 | +``` |
| 132 | + |
| 133 | +## Grant Object Properties |
| 134 | + |
| 135 | +Each grant object contains the following key properties: |
| 136 | + |
| 137 | +```typescript |
| 138 | +interface Grant { |
| 139 | + id: string; // Unique grant identifier |
| 140 | + provider: string; // 'google', 'microsoft', 'yahoo', etc. |
| 141 | + email?: string; // Associated email address |
| 142 | + name?: string; // User's display name |
| 143 | + grantStatus?: string; // 'valid', 'invalid', 'expired' |
| 144 | + scope: string[]; // Permissions: ['email', 'calendar', 'contacts'] |
| 145 | + createdAt: number; // Unix timestamp |
| 146 | + updatedAt?: number; // Unix timestamp of last update |
| 147 | + providerUserId?: string; // Provider's internal user ID |
| 148 | + ip?: string; // IP address during authentication |
| 149 | + userAgent?: string; // Browser/client used for auth |
| 150 | + settings?: Record<string, unknown>; // Provider-specific settings |
| 151 | +} |
| 152 | +``` |
| 153 | + |
| 154 | +## Available Query Parameters |
| 155 | + |
| 156 | +When listing grants, you can use these parameters: |
| 157 | + |
| 158 | +- **`limit`** (number) - Maximum results to return (default: 10, max: 200) |
| 159 | +- **`offset`** (number) - Skip this many results for pagination |
| 160 | +- **`sortBy`** - Sort field: `'created_at'` or `'updated_at'` |
| 161 | +- **`orderBy`** - Sort direction: `'asc'` or `'desc'` |
| 162 | +- **`since`** (number) - Unix timestamp to filter grants created after |
| 163 | +- **`before`** (number) - Unix timestamp to filter grants created before |
| 164 | +- **`email`** (string) - Filter by email address |
| 165 | +- **`grantStatus`** (string) - Filter by status: `'valid'`, `'invalid'`, etc. |
| 166 | +- **`ip`** (string) - Filter by IP address |
| 167 | +- **`provider`** (string) - Filter by provider: `'google'`, `'microsoft'`, etc. |
| 168 | + |
| 169 | +## Common Use Cases |
| 170 | + |
| 171 | +### 1. **Health Check Dashboard** |
| 172 | +```typescript |
| 173 | +// Get overview of all grants and their status |
| 174 | +const allGrants = await nylas.grants.list(); |
| 175 | +const grantsByStatus = allGrants.data.reduce((acc, grant) => { |
| 176 | + const status = grant.grantStatus || 'valid'; |
| 177 | + acc[status] = (acc[status] || 0) + 1; |
| 178 | + return acc; |
| 179 | +}, {}); |
| 180 | +console.log('Grant Status Overview:', grantsByStatus); |
| 181 | +``` |
| 182 | + |
| 183 | +### 2. **Find Grants Needing Re-authentication** |
| 184 | +```typescript |
| 185 | +// Find invalid or expired grants |
| 186 | +const invalidGrants = await nylas.grants.list({ |
| 187 | + queryParams: { |
| 188 | + grantStatus: 'invalid', |
| 189 | + }, |
| 190 | +}); |
| 191 | +console.log(`${invalidGrants.data.length} grants need re-authentication`); |
| 192 | +``` |
| 193 | + |
| 194 | +### 3. **Provider Distribution Analysis** |
| 195 | +```typescript |
| 196 | +// See which providers your users prefer |
| 197 | +const grants = await nylas.grants.list(); |
| 198 | +const providerCounts = grants.data.reduce((acc, grant) => { |
| 199 | + acc[grant.provider] = (acc[grant.provider] || 0) + 1; |
| 200 | + return acc; |
| 201 | +}, {}); |
| 202 | +console.log('Provider Distribution:', providerCounts); |
| 203 | +``` |
| 204 | + |
| 205 | +### 4. **Recent Activity Monitoring** |
| 206 | +```typescript |
| 207 | +// Find grants created or updated in the last week |
| 208 | +const weekAgo = Math.floor((Date.now() - (7 * 24 * 60 * 60 * 1000)) / 1000); |
| 209 | +const recentActivity = await nylas.grants.list({ |
| 210 | + queryParams: { |
| 211 | + since: weekAgo, |
| 212 | + sortBy: 'created_at', |
| 213 | + orderBy: 'desc', |
| 214 | + }, |
| 215 | +}); |
| 216 | +``` |
| 217 | + |
| 218 | +## Rate Limiting |
| 219 | + |
| 220 | +The Nylas API includes rate limiting. You can monitor your usage: |
| 221 | + |
| 222 | +```typescript |
| 223 | +const response = await nylas.grants.list(); |
| 224 | +if (response.rawHeaders) { |
| 225 | + const limit = response.rawHeaders['x-rate-limit-limit']; |
| 226 | + const remaining = response.rawHeaders['x-rate-limit-remaining']; |
| 227 | + console.log(`Rate Limit: ${remaining}/${limit} requests remaining`); |
| 228 | +} |
| 229 | +``` |
| 230 | + |
| 231 | +## Error Handling |
| 232 | + |
| 233 | +Always wrap grant operations in try-catch blocks: |
| 234 | + |
| 235 | +```typescript |
| 236 | +try { |
| 237 | + const grants = await nylas.grants.list(); |
| 238 | + // Process grants... |
| 239 | +} catch (error) { |
| 240 | + if (error.status === 401) { |
| 241 | + console.error('Invalid API key'); |
| 242 | + } else if (error.status === 429) { |
| 243 | + console.error('Rate limit exceeded'); |
| 244 | + } else { |
| 245 | + console.error('Error listing grants:', error); |
| 246 | + } |
| 247 | +} |
| 248 | +``` |
| 249 | + |
| 250 | +## Next Steps |
| 251 | + |
| 252 | +After exploring grants, you might want to: |
| 253 | + |
| 254 | +1. **Use grants to access data** - Use grant IDs to list messages, events, or contacts |
| 255 | +2. **Monitor grant health** - Set up automated checks for invalid grants |
| 256 | +3. **Implement re-authentication** - Handle expired grants gracefully |
| 257 | +4. **Build user dashboards** - Show users their connected accounts |
| 258 | + |
| 259 | +## Related Documentation |
| 260 | + |
| 261 | +- [Nylas Authentication Guide](https://developer.nylas.com/docs/the-basics/authentication/) |
| 262 | +- [Grant Management API](https://developer.nylas.com/docs/api/v3/admin/#tag--Grants) |
| 263 | +- [OAuth Scopes Reference](https://developer.nylas.com/docs/the-basics/authentication/oauth-scopes/) |
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