> For the complete documentation index, see [llms.txt](https://docs.hyphen.at/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hyphen.at/flutter/authenticating-users.md).

# Authenticating Users

In Flutter, Hyphen Authentication functionalities are provided by the `authenticate` module of the SDK. This module enables users to perform various authentication tasks such as signing in, creating an account, and retrieving the user's key and account information.

### Integrate Hyphen Authenticate

The `HyphenAuthenticate` class provides functionalities for authentication using the Hyphen SDK.

* `getAccount`: Retrieves the user's account information.
* `authenticate`: Initiates the authentication process with the provided `webClientId`.

```dart
try {
  // Retrieve user's account information
  await HyphenAuthenticate.getAccount();

  // Authenticate user with webClientId
  await HyphenAuthenticate.authenticate("your_web_client_id");
} catch (e) {
  // Handle errors
  print("Error: $e");
}
```

### Authenticate with Google Account

{% hint style="info" %}
Currently, Hyphen SDK only supports authentication via **Google Account.**
{% endhint %}

You must use the Web Client ID on the Google Cloud Platform for Google Authentication. See also [Get your Google API client ID](https://developers.google.com/identity/gsi/web/guides/get-google-api-clientid).

```dart
HyphenAuthenticate.authenticate(
    webClientId = "<YOUR-WEB-CLIENT-ID>" // ex. 201778913659-dn4bo82q6hce3kfp7vstp04b22nh5hbi.apps.googleusercontent.com
)
```

Once authenticated successfully, you can get your HyphenAccount and retrieve information such as the account address.

```dart
final HyphenAccount hyphenAccount = await HyphenAuthenticate.getAccount();
if (hyphenAccount != null) {
  // Access the first address
  final String firstAddress = hyphenAccount.addresses.first.address;
  print("Address: $firstAddress"); // Print the first address
} 
```


---

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