# Methods

This document details the methods for controlling the chat.

## Disable sending messages

You can disable the sending of any type of message. For example:


```swift

SinchChatSDK.shared.chat.advanced.disableSendingMessages()

var localizationConfig = SinchSDKConfig.LocalizationConfig.defaultValue
localizationConfig.disabledChatMessageText = "Sending messages is disabled"

let viewControler = try SinchChatSDK.shared.chat.getChatViewController(uiConfig: .defaultValue,
                                                                       localizationConfig: localizationConfig)
```

## Enable sending messages

You can enable message sending. For example:


```swift

SinchChatSDK.shared.chat.advanced.enableSendingMessages()
```

## Additional methods

These methods are **optional**; they are **helpers** if you want to ask for notifications in other places after starting the chat. Please don’t ask user for notifications at application start. **This is a bad practice.** Ask when you need it.

You may check push permission using our method:


```swift
SinchChatSDK.shared.push.checkPushPermission(completion: @escaping (SinchSDKNotificationStatus) -> Void)



// OR iOS 13+ with Combine

func checkPushPermission() -> AnyPublisher<SinchSDKNotificationStatus, Never>
```

You may ask for notification permission:


```swift
func askNotificationPermission(completion: @escaping (SinchSDKNotificationStatus) -> Void)



// OR iOS 13+ with Combine

func askNotificationPermission() -> AnyPublisher<SinchSDKNotificationStatus, Never>
```