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Forward HTTP Requests
From sgcWebSockets 4.4.6, forward HTTP requests is supported. Reverse proxy is useful when there is a single server listening on a public port and behind it there are other servers that cannot be accessed from a public address.
Example: you can serve all HTTP requests using our sgcWebSockets server and forward to another server all requests to url "/internal"
Reverse Proxy Configuration
if you want to forward all requests to the document "/internal" to the server "localhost:8080"
procedure OnBeforeForwardHTTP(Connection: TsgcWSConnection; ARequestInfo: TIdHTTPRequestInfo; aForward: TsgcWSServerForwardHTTP);
begin
if ARequestInfo.Document = '/internal' then
begin
aForward.Enabled := True;
aForward.URL := 'http://localhost:8080';
end;
end;
Other options
When you want forward an HTTP request, you have the additional options:
1. By default, the request if forwarded using the original document. Example: if you forward the request http://localhost:8080/internal to the internal server http://localhost:5555, the forwarded URL will be http://localhost:5555/internal. But you can modify the Document, using the Document property of Forward object (by default will use the same of the original request).aForward.Document = "/NewInternal"2. If you forward a secure HTTP connection (HTTPs), you can customize the SSL/TLS options, in TLSOptions property of Forward object. Example: set the TLS version
aForward.TLSOptions.Version = tls1_2Stay Informed
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