[Lazarus] Changes to fpWeb...

[Michael Van Canneyt]

On Tue, 17 Jan 2017, Michael Schnell via Lazarus wrote:

> On 16.01.2017 20:19, Daniel Gaspary wrote:
>
>> Can you give examples of these messages? And who (nginx, apache..?)
>> and how they are implemented?
>>
>
> In fact I can't, either, that is why I ask.
>
> I do know that there are several frameworks that support this by running 
> rather complex Java script on the Client. (For Pascal there once was 
> EXTPascal, but AFAIK, the project has died. )
>
> AFAIK there are several "standard" ways to use a HTTP connection via a 
> HTTP server in reverse direction, including polling by Java script, 
> holding a connection open for an extended amount of time and using an 
> additional TCP/IP socket. (I seem to remember names like "Comet" or 
> "WebSocket". "WebAssembler" might be a future extension to this, in 
> future potentially allowing to run projects created from Pascal code 
> directly in the browser.)
>
> It would be nice to have a package Lazarus that supports such things.

There is. Look for bauglirwebsocket. It implements the websocket protocol.

Michael.