[英]The Remote Server returned an error : (415) Unsupported media type for PowerBI Data Refresh API Call
I am trying to refresh power bi dataset using POST method with PowerShell script, but keep getting an error about media type so not sure what to do here. 我正在尝试使用带有PowerShell脚本的POST方法来刷新power bi数据集,但始终会遇到有关媒体类型的错误,因此不确定在这里做什么。 Just curious if somebody else having any solution for this. 只是好奇是否有人对此有任何解决方案。 Thanks in advance for the help!! 先谢谢您的帮助!!
Please see this source code for more details... 请参阅此源代码以获取更多详细信息...
https://github.com/Azure-Samples/powerbi-powershell/blob/master/manageRefresh.ps1 https://github.com/Azure-Samples/powerbi-powershell/blob/master/manageRefresh.ps1
# 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 = " FILL ME IN " # the ID of the group that hosts the dataset. Use "me" if this is your My Workspace
$datasetID = " FILL ME IN " # 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 = " FILL ME IN "
# End Parameters =======================================
# Calls the Active Directory Authentication Library (ADAL) to authenticate against AAD
function GetAuthToken
{
$adal = "${env:ProgramFiles(x86)}\Microsoft SDKs\Azure\PowerShell\ServiceManagement\Azure\Services\Microsoft.IdentityModel.Clients.ActiveDirectory.dll"
$adalforms = "${env:ProgramFiles(x86)}\Microsoft SDKs\Azure\PowerShell\ServiceManagement\Azure\Services\Microsoft.IdentityModel.Clients.ActiveDirectory.WindowsForms.dll"
[System.Reflection.Assembly]::LoadFrom($adal) | Out-Null
[System.Reflection.Assembly]::LoadFrom($adalforms) | Out-Null
$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
I've came across this exact issue. 我遇到了这个确切的问题。
You are basically trying to return refresh info from a dataset that cannot be refreshed (Eg. A direct Query dataset or the builtin metrics datasets) 您基本上是在尝试从无法刷新的数据集中返回刷新信息(例如,直接查询数据集或内置指标数据集)
You need to either add -ErrorAction SilentlyContinue
您需要添加-ErrorAction SilentlyContinue
or wrap the dataset refresh API call in a loop like this: 或将数据集刷新API调用包装在这样的循环中:
$datasets = Invoke-RestMethod -Uri $uri -Headers $authHeader -Method GET $ datasets = Invoke-RestMethod -Uri $ uri -Headers $ authHeader -Method GET
foreach($dataset in $datasets.value)
{
if($dataset.isRefreshable -eq $true)
{
#Build API String
$uri2 = "https://api.powerbi.com/v1.0/$groupsPath/datasets/$($dataset.id)/refreshes"
#Return refresh info for each dataset
$refreshes = Invoke-RestMethod -Uri $uri2 -Headers $authHeader -Method GET
}
}
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