How to use the HttpClient to connect via a proxy server?

The code below demonstrates connecting to an Web Service using httpClient via a Proxy Server.

The ViaProxy option needs to be used when building the Request:

USING OpenEdge.Net.HTTP.*

DEFINE VARIABLE oClient AS IHttpClient     NO-UNDO.
DEFINE VARIABLE oReq    AS IHttpRequest  NO-UNDO.

/* all requests */
oClient = ClientBuilder:Build()
                  :ViaProxy('http://proxy.example.com')
                  :Client.
                  
/* single request */                  
oReq = RequestBuilder:Get('http://www.example.com')
            :ViaProxy('http://proxy.example.com')
            :Request.

 

References to Other Documentation:
Progress Article(s):
Getting started with HTTP client for OpenEdge