PowerShell error when trying to refresh PowerBi dataset

[EUGENEG]

The following error occurs when I try to execute a powershell script for powerbi

Error:

Invoke-RestMethod : The remote server returned an error: (401) Unauthorized.
At line:74 char:1
+ Invoke-RestMethod -Uri $uri –Headers $authHeader –Method POST –Verbos ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod], WebException
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand

Script

# This sample script calls the Power BI API to progammtically trigger a refresh for the dataset
# It then calls the Power BI API to progammatically to get the refresh history for that dataset
# For full documentation on the REST APIs, see:
# https://msdn.microsoft.com/en-us/library/mt203551.aspx

# Instructions:
# 1. Install PowerShell (https://msdn.microsoft.com/en-us/powershell/scripting/setup/installing-windows-powershell) and the Azure PowerShell cmdlets (https://aka.ms/webpi-azps)
# 2. Set up a dataset for refresh in the Power BI service - make sure that the dataset can be
# updated successfully
# 3. Fill in the parameters below
# 4. Run the PowerShell script

# Parameters - fill these in before running the script!
# =====================================================

# An easy way to get group and dataset ID is to go to dataset settings and click on the dataset
# that you'd like to refresh. Once you do, the URL in the address bar will show the group ID and
# dataset ID, in the format:
# app.powerbi.com/groups/{groupID}/settings/datasets/{datasetID}

$groupID = "EX" # the ID of the group that hosts the dataset. Use "me" if this is your My Workspace
$datasetID = "EX" # the ID of the dataset that hosts the dataset

# AAD Client ID
# To get this, go to the following page and follow the steps to provision an app
# https://dev.powerbi.com/apps
# To get the sample to work, ensure that you have the following fields:
# App Type: Native app
# Redirect URL: urn:ietf:wg:oauth:2.0:oob
# Level of access: all dataset APIs
$clientId = "EX"

# End Parameters =======================================

# Calls the Active Directory Authentication Library (ADAL) to authenticate against AAD
function GetAuthToken
{
if(-not (Get-Module AzureRm.Profile)) {
Import-Module AzureRm.Profile
}

$redirectUri = "urn:ietf:wg:oauth:2.0:oob"

$resourceAppIdURI = "https://analysis.windows.net/powerbi/api"

$authority = "https://login.microsoftonline.com/common/oauth2/authorize";

$authContext = New-Object "Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContext" -ArgumentList $authority

$authResult = $authContext.AcquireToken($resourceAppIdURI, $clientId, $redirectUri, "Auto")

return $authResult
}

# Get the auth token from AAD
$token = GetAuthToken

# Building Rest API header with authorization token
$authHeader = @{
'Content-Type'='application/json'
'Authorization'=$token.CreateAuthorizationHeader()
}

# properly format groups path
$groupsPath = ""
if ($groupID -eq "me") {
$groupsPath = "myorg"
} else {
$groupsPath = "myorg/groups/$groupID"
}

# Refresh the dataset
$uri = "https://api.powerbi.com/v1.0/$groupsPath/datasets/$datasetID/refreshes"
Invoke-RestMethod -Uri $uri –Headers $authHeader –Method POST –Verbose

# Check the refresh history
$uri = "https://api.powerbi.com/v1.0/$groupsPath/datasets/$datasetID/refreshes"
Invoke-RestMethod -Uri $uri –Headers $authHeader –Method GET –Verbose

[bihumano]

I've been using powershell to refresh powerbi datasets since the begining of times and recently it is getting this error:

is this solution still working for the rest of you?

Invoke-RestMethod -Uri $uri –Headers $authHeader –Method GET –Verbose
VERBOSE: POST https://api.powerbi.com/v1.0/myorg/groups/editedtohidden/datasets/editedtohidden/refreshes with 0-byte payload
Invoke-RestMethod : The underlying connection was closed: An unexpected error occurred on a send.
At line:74 char:1
+ Invoke-RestMethod -Uri $uri –Headers $authHeader –Method POST –Verbos ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod], WebException
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand
 
VERBOSE: GET https://api.powerbi.com/v1.0/myorg/groups/editedtohidden/datasets/editedtohidden/refreshes with 0-byte payload
Invoke-RestMethod : The underlying connection was closed: An unexpected error occurred on a send.
At line:78 char:1
+ Invoke-RestMethod -Uri $uri –Headers $authHeader –Method GET –Verbose
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod], WebException
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand 

[lbendlin]

looks like you forgot to specify the authentication payload.

[bihumano]

I had to add this line to the code:

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 

[v-easonf-msft · Accepted solution]

Hi , @EUGENEG 

Could you please tell me whether your problem has been solved?
If it is,  please mark the helpful replies or add your reply as Answered to close this thread.
More people will learn new things here. If you haven't, please feel free to ask.

Best Regards,
Community Support Team _ Eason

[EUGENEG]

Hi Issue resolved thanks 

[lbendlin]

Your auth header is incorrect (as the error message says). You can validate with the online API tester

for example https://docs.microsoft.com/en-us/rest/api/power-bi/datasets/refreshdatasetingroup  (hit the try it button)