September 2003
Intermediate to advanced
640 pages
18h 43m
English
Content preview from Flash Remoting: The Definitive Guide
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How Does Flash Remoting Work?
The Flash Remoting gateway is installed on the application server and acts as an interface between the Flash Player and the server. The Flash Remoting software that implements the gateway is also called an adapter. It has three main tasks:
Handle requests from the Flash Player to remote services. These services can be on the same server as the Flash Remoting gateway or can be external to the server in the form of web services.
Translate requests and data from the Flash Player into server-side requests and datatypes.
Translate responses and data from the server into native ActionScript datatypes.
Figure 1-1 depicts the Flash Player/Flash Remoting architecture.
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Figure 1-1. The Flash Player/Flash Remoting architecture
Communication between the Flash Player and the Flash Remoting gateway is done via HTTP, which has a few implications:
Communication between the Flash Player and the Flash Remoting gateway is request-driven. The Flash Player must initiate all communication with the Flash Remoting gateway. The server cannot push data to Flash unless it is requested by the Flash Player. Use the ActionScript XMLSocket object, as discussed in ActionScript for Flash MX: The Definitive Guide (O’Reilly), if you need to push data from the server to Flash, such as in a chat application. Another option is to use Macromedia’s Flash Communication Server MX (FlashCom) ...
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