# Microsoft Graph API Reference

## Base URL
```
https://graph.microsoft.com/v1.0
```

## Authentication
Bearer token in Authorization header:
```
Authorization: Bearer {access_token}
```

## Mail Endpoints

### List folders
```
GET /me/mailFolders
GET /me/mailFolders/{id}/childFolders
```

### List messages
```
GET /me/mailFolders/{folder_id}/messages
GET /me/messages?$filter=...
```

### Get message
```
GET /me/messages/{id}
```

### Send message
```
POST /me/sendMail
{
  "message": {
    "subject": "...",
    "body": {"contentType": "Text", "content": "..."},
    "toRecipients": [{"emailAddress": {"address": "..."}}]
  }
}
```

### Move message
```
POST /me/messages/{id}/move
{"destinationId": "{folder_id}"}
```

### Copy message
```
POST /me/messages/{id}/copy
{"destinationId": "{folder_id}"}
```

## OneDrive Endpoints

### List root
```
GET /me/drive/root/children
```

### List folder
```
GET /me/drive/root:/{path}:/children
```

### Get file content
```
GET /me/drive/items/{item_id}/content
```

### Upload file
```
PUT /me/drive/root:/{path}:/content
```

## Useful Query Parameters

- `$top=N` - Limit results
- `$skip=N` - Pagination offset
- `$select=field1,field2` - Select specific fields
- `$filter=field eq 'value'` - Filter results
- `$orderby=field desc` - Sort results

## Rate Limits

- 10,000 requests per 10 minutes per app
- Throttled requests return 429 Too Many Requests