Dynamics HttpClient call never succeeds

问题

I am developing a business central control add in where I need to call external web services. For this, I am using the HttpClient class in AL but no call succeeds.

if not Client.Get('https://google.com', Response)
    then begin
        responseText := Response.ReasonPhrase();
        Message(responseText);
        Error('didnt work');
    end;

It takes about 2.5-3 Minutes to finish the call. ResponseText is 'OK' and HttpStatusCode is '200' but the call always fails and goes into error handling block.

Reading the response with Response.Content.ReadAs(responseText); fails with a dynamics error message.

What am I missing? I already granted external access in extension management and tried with sandbox and on premise installs of latest 2019.

回答1:

Go to extension management, select your extension and from Manage menu, select Configure. In the Configure page, set AllowHttpCleintRequest to True.

来源：https://stackoverflow.com/questions/60153873/dynamics-httpclient-call-never-succeeds