PowerShell How to capture error and assign it to a variable for Invoke-PowerBIRestMethod

[Anonymous]

I'm trying to write error to log file.. this specific API when it is unable to invoke it has the error message in the console as following

// Code

try

                  {

                  $datasource = Invoke-PowerBIRestMethod -url "gateways/$gatewayId/datasources/$datasourceId" -method PATCH -Body $updateDatasourceBodyStr -ErrorAction Continue

                  }

                  

            Catch

            {

               # if($_.ErrorDetails.Message) {

                  # Write-Host $_.ErrorDetails.Message

            # } 

            else {

                  # Write-Host $_

            # }

                  

                  # write-host "exception: $($_.Exception)"

                  # Resolve-PowerBIError -Last

                  

                  # Write-Host "StatusCode:" $_.Exception.Response.StatusCode.value__

                  # Write-Host "StatusDescription:" $_.Exception.Response.StatusDescription

                  

                   # write-host "ErrorVar: $error[0]"

                  

                  Write-Host "ErrorVar: $($_.Exception.Message)"

                  

                  $ErrRespp = $($_.Exception.Message)

                  

                  $ErrRespp | select-object @{n="ErrorMsg";e={$ErrRespp}}, @{n="DataSourceID";e={$datasourceId}}, @{n="GatewayID";e={$gatewayId}} | Export-csv $ErrorPathNew -NoTypeInformation -Append -force

                  

                  # $streamReader = [System.IO.StreamReader]::new($_.Exception.Response.GetResponseStream())

                  # $ErrRespp = $streamReader.ReadToEnd()

                  # $streamReader.Close()

                  

                  # $ErrRespp | select-object @{n="DataSourceID";e={$datasourceId}}, @{n="GatewayID";e={$gatewayId}} | Export-csv $ErrorPathNew -NoTypeInformation -Append -force

            

                  # $iserror = $true

            }

//

if I have the -ErrorAction set to Stop the error writes to the log file and if I set it to Continue the error only shows in the console but does not write to log file. This will be an iteration script I do not want the PS script set to Stop and want to set ErrorAction to Continue. I've also tried SilentlyContinue but no luck.

The Catch section in the above code has different ways to capture the error and none of it works if -ErrorAction is not set to Stop.

Looking for a feasible solution. Thanks in Advance!

[Anonymous]

Trying to resurface this post and see if anyone has a solution for this issue. Thanks!

Hi @v-yiruan-msft, could you check my above response and let me know if there is a solution. Thanks!

[Anonymous]

Hi @Anonymous ,

Please update the codes as below and check if that can help you get the expected result.

try
{
    $datasource = Invoke-PowerBIRestMethod -url "gateways/$gatewayId/datasources/$datasourceId" -method PATCH -Body $updateDatasourceBodyStr -ErrorAction Stop
}
catch
{
    # Capture the error message
    $errorMessage = $_.Exception.Message

    # Write the error message to the console
    Write-Host "Error Message: $errorMessage"

    # Now you can use $errorMessage variable as per your requirement
}

Best Regards

[Anonymous]

Hi @Anonymous

Thanks for the response. As I mentioned in my initial post I want this script to be iterated. If I set the -ErrorAction to Stop the iteration stops. Instead I want the -ErrorAction set to Continue and write the error to a variable and continue the iteration. 
I've tried this but the error is not captured to the variable. This is happening for Invoke-PowerBIRestMethod only.

I'm looking for a solution for this scenario. Thanks!