Posting Requests To Microsoft Azure

[Paul Park <parkp@xxxxxxxxxx>]

Hi

I have a new requirement to post requests to a REST web service hosted 
on a Microsoft Azure platform.  I've had success in the past using 
Scott's HTTPAPI service program to post XML requests to a SOAP service, 
and I believe that posting to REST should be no problem either.

I have two stumbling blocks that I know of, though, and they are shown 
on a page that explains how to make requests to the new service - 
https://msdn.microsoft.com/en-us/library/azure/mt428036.aspx. I'll list 
them here:

1) "To make a data request to the Data Catalog REST service, you need to 
supply an access token. In a .NET client app, you use the Windows Azure 
Authentication Library (ADAL) to get an access token."

string authorityUri = "https://login.windows.net/common/oauth2/authorize";;
  AuthenticationContext authContext = new 
AuthenticationContext(authorityUri);
  AuthenticationResult token = authContext.AcquireToken(resourceUri, 
clientId, new Uri(redirectUri), PromptBehavior.RefreshSession);

2) "After you get an access token from Active Directory (AAD), you use 
the token to make a web request to the Data Catalog REST API. To create 
a Data Catalog REST web request, you add an access token to a request 
header."


I have no idea how to tackle step 1 - get an access token. The example 
is .NET, and I suspect I can't do this.
Step 2 - add the token to a request header might be possible, as I've 
seen examples that use http_setauth to pass a user id and password. Can 
I use http_setauth to send an access token?

I've already prepared my boss for disappointment on this, but I need to 
know: is there a way to do step 1 in RPG?

Thanks for any input.

Paul


Enterprise Software Systems.
Company No 3374336. Registered in England,
Registered Office: Enterprise House, Pacific Road
Altrincham, Cheshire, WA14 5EN

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