---
title: start()
framework: safariservices
role: symbol
role_heading: Instance Method
path: safariservices/sfauthenticationsession/start()
---

# start()

Starts the session after initializing an instance of SFAuthenticationSession. This will trigger the consent dialog.

## Declaration

```swift
func start() -> Bool
```

## See Also

### Instance Methods

- [cancel()](safariservices/sfauthenticationsession/cancel().md)