# Facebook Marketplace Cookies Setup

To use the Facebook Marketplace scraper, you need to provide valid Facebook session cookies.

## Option 1: Cookies File (`facebook.json`)

1. Log into Facebook in your browser
2. Open Developer Tools → Network tab
3. Visit facebook.com/marketplace (ensure you're logged in)
4. Look for any marketplace-related requests in the Network tab
5. Export cookies from the browser's Application/Storage → Cookies section
6. Save the cookies as a JSON array to `facebook.json`

The `facebook.json` file should contain Facebook session cookies, particularly:
- `c_user`: Your Facebook user ID
- `xs`: Facebook session token
- `fr`: Facebook request token
- `datr`: Data attribution token
- `sb`: Session browser token

Example structure:
```json
[
  {
    "name": "c_user",
    "value": "123456789",
    "domain": ".facebook.com",
    "path": "/",
    "secure": true
  },
  // ... other cookies
]
```

## Option 2: URL Parameter

You can pass cookies directly via the `cookies` URL parameter:

```
GET /api/facebook?q=laptop&cookies=[{"name":"c_user","value":"123","domain":".facebook.com",...}]
```

## Important Notes

- Cookies must be from an active Facebook session
- Cookies expire, so you may need to refresh them periodically
- Never share real cookies or commit them to version control
- Facebook may block automated scraping even with valid cookies

## Security

The cookies file is intentionally left out of version control for security reasons.</content>