---
title: "applyCredential(username:password:)"
framework: network
role: symbol
role_heading: Instance Method
path: "network/proxyconfiguration/applycredential(username:password:)"
---

# applyCredential(username:password:)

Sets a username and password to use as authentication for a proxy configuration.

## Declaration

```swift
func applyCredential(username: String, password: String)
```

## Parameters

- `username`: A proxy authentication username.
- `password`: A proxy authentication password.

## See Also

### Customizing Proxy Behavior

- [allowFailover](network/proxyconfiguration/allowfailover.md)