# chrome.[cast](https://developers.google.com/cast/docs/reference/web_sender/chrome.cast).SessionRequest

class static

A request to start or connect to a session.

## Constructor

### SessionRequest

new
SessionRequest(appId, capabilities, timeout, androidReceiverCompatible, credentialsData)

| #### Parameter ||
|---|---|
| appId | string The receiver application id. |
| capabilities | Optional Array of non-null [chrome.cast.Capability](https://developers.google.com/cast/docs/reference/web_sender/chrome.cast#.Capability) Required capabilities for the receiver. Value must not be null. |
| timeout | Optional number Optional timeout for requesting a session for this application. |
| androidReceiverCompatible | Optional boolean Indicates if the app is compatible with an Android Receiver. |
| credentialsData | Optional [chrome.cast.CredentialsData](https://developers.google.com/cast/docs/reference/web_sender/chrome.cast.CredentialsData) Credentials data used to identify the credentials of the sender. Value may be null. |

## Properties

### androidReceiverCompatible

boolean

Indicates if the app is compatible with an Android Receiver.

### appId

string

The receiver application id.

### capabilities

non-null Array of non-null [chrome.cast.Capability](https://developers.google.com/cast/docs/reference/web_sender/chrome.cast#.Capability)

Capabilities required of the receiver device.

### credentialsData

nullable [chrome.cast.CredentialsData](https://developers.google.com/cast/docs/reference/web_sender/chrome.cast.CredentialsData)

Credentials data used to identify the credentials of the sender.

### language

nullable string

Optional language to add to the Accept-Language header value when
launching the receiver application. Ignored if joining an already
existing session. The value is represented as '-' tag as per RFC 5646. For example 'es-ES'.

### requestSessionTimeout

number

The timeout used for requesting a session for the application in
milliseconds. Defaults to the value of
chrome.cast.timeout.requestSession.