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Hello,
I'm using the following code to trigger a dataset refresh via the REST API and VB.net:
Dim redirectUri, resourceUri, authorityUri, clientID As String
redirectUri = "https://dev.powerbi.com/Apps/SignInRedirect"
resourceUri = "https://analysis.windows.net/powerbi/api"
authorityUri = "https://login.windows.net/common/"
Dim authContext As New AuthenticationContext(authorityUri, New TokenCache())
clientID = My-Client-ID
Dim authenticationResult As AuthenticationResult
Try
authenticationResult = Await authContext.AcquireTokenAsync(resourceUri, clientID, New Uri(redirectUri), New PlatformParameters(PromptBehavior.Auto))
Dim s As HttpWebRequest
Dim enc As UTF8Encoding
Dim postdata As String
s = HttpWebRequest.Create("https://api.powerbi.com/v1.0/myorg/groups/My-Workspace/datasets/My-Dataset/refreshes")
s.Method = "POST"
s.KeepAlive = True
s.ContentLength = 0
s.Headers.Add("Authorization", String.Format("Bearer {0}", authenticationResult.AccessToken))
s.ContentType = "application/x-www-form-urlencoded"
s.GetResponse()
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
This used to work perfectly. However suddenly I started to get an error at .GetResponse ("Connection closed..."). Does anyone have an idea where the problem could be? I updated all the involved nuget packages but that didn't help.
Thanks for any help!
Solved! Go to Solution.
In case anyone is having the same issue, I had to enable TLS 1.2 for the connection, which I did by adding this line in code:
System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12
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