Client configuration properties

The client can set the following URL parameters when sending the initial request to register for push notifications. All parameters are optional. If not specified, default values are used.
key
Specifies one or more notification keys that the client is interested in receiving notifications for. If not specified, the client receives notifications for all keys. The parameter can be specified multiple times. For example, key=key1&key=key2...&key=keyN.
mode
Specifies the Comet mode for the client. Valid values are 0 for data streaming and 1 for long polling. If not specified, data streaming applies by default.
callback
Specifies the name of JavaScript callback function to invoke. The notification is passed in as the value for the parameter. For more information, see JavaScript callback function.
If this parameter is not specified, by default the raw data notification mode is used.