> For the complete documentation index, see [llms.txt](https://docs.altura.com/altura-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.altura.com/altura-documentation/unity-sdk-reference/get-methods/verify-a-users-altura-guard-code.md).

# Verify a User's Altura Guard Code

Use this method to authenticate users with [Altura Guard](broken://pages/ji3Hsh5IwNtkUKhHg256). 

### Usage in your script

```csharp
AuthenticateUser
  .Initialize(destroyAtEnd: true)
  .SetParams(
    "0x85d...",
    "1d47s"
  )
  .OnError(error => Debug.Log(error))
  .OnComplete(AlturaGuard => Debug.Log(AlturaGuard.authenticated))
  .Run();
```

#### Member Functions

**`.Initialize()`**

<table><thead><tr><th width="193">Parameter</th><th width="80">Type</th><th width="105">Required</th><th>Description</th></tr></thead><tbody><tr><td><code>destroyAtEnd</code></td><td><strong>bool</strong></td><td><strong>Optional</strong></td><td>defines if this component will be destroyed after <code>.Run()</code></td></tr></tbody></table>

**`.SetParameters()`**

<table><thead><tr><th width="193.33333333333331">Parameter</th><th width="88">Type</th><th width="109">Required</th><th>Description</th></tr></thead><tbody><tr><td><code>wallet_address</code></td><td><strong>String</strong></td><td><strong>Yes</strong></td><td>Unique wallet address of user</td></tr><tr><td><code>altura_guard</code></td><td><strong>String</strong></td><td><strong>Yes</strong></td><td>Altura Guard code.</td></tr></tbody></table>

**`.onError()`**

*Action on Error: returns error information.*

**`.onComplete()`**

*Action on successful: returns* [*`Auth_model`* ](broken://pages/X6BXtARHCyPm4jpigLmp#auth-model)*type.*

**`.Run()`**

*Runs the API call and fills the corresponding model in the component on success.*