mORMot Open Source

turrican

Member

From: Barcelona

Registered: 2015-06-05

Posts: 94

Website

Streaming with THttpApiServer

Hi,

Actually I replaced (IIS 8.5 and .NET Framework 4.6 C# MVC based Application) with (Object Pascal mORMot framework using THttpApiServer). All features are working outstanding and performing better than .NET in most cases.
I want to implement multimedia streaming to client, so I need to write on headers directly before HTTP response. There is some way to do this?

warleyalex

Member

From: Sete Lagoas-MG, Brasil

Registered: 2013-01-20

Posts: 250

Re: Streaming with THttpApiServer

AFAIK, currently it is not possible to communicate in raw binary mode (e.g. send raw video streaming), a new kind of record would be necessary to send binary data from the server to the client.
All communication is is done through base64-encoding (using interface based services), this will adds 30% to 50% overhead.

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,666

Website

Re: Streaming with THttpApiServer

Use a method based service.

Or a TCustomAnswer record function result.

mpv

Member

From: Ukraine

Registered: 2012-03-24

Posts: 1,571

Website

Re: Streaming with THttpApiServer

@turrican - if you need to "stream" from file just return a handle (see TSQLRestServerURIContext.ReturnFile*) and THttpApiServer will perform a chunked output out from the box if client request it (most of AV player did) - see

THttpApiServer.Execute
..
if Context.OutContentType=HTTP_RESP_STATICFILE then begin
...