functions/core/Invoke-MgaGetMethod.ps1
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function Invoke-MgaGetMethod { <# .SYNOPSIS Performs a rest GET against the graph API .DESCRIPTION Performs a rest GET against the graph API. Primarily used for internal commands. .PARAMETER Field The api child item under the username in the url of the api call. If this didn't make sense to you, you probably shouldn't be using this command ;) .PARAMETER User The user to execute this under. Defaults to the user the token belongs to. .PARAMETER Delta Indicates that the query is intend to be a delta query, so a delta-link property is added to the output-object ('@odata.deltaLink'). .PARAMETER DeltaLink Specifies the uri to query for delta objects on a query. .PARAMETER ResultSize The user to execute this under. Defaults to the user the token belongs to. .PARAMETER Token The access token to use to connect. .PARAMETER FunctionName Name of the higher function which is calling this function. .EXAMPLE PS C:\> Invoke-MgaGetMethod -Field 'mailFolders' -Token $Token -User $User Retrieves a list of email folders for the user $User, using the token stored in $Token #> [CmdletBinding(DefaultParameterSetName = 'Default')] param ( [ValidateNotNullOrEmpty()] [string] $Field, [string] $User, [Parameter(ParameterSetName = 'Default')] [switch] $Delta, [Parameter(ParameterSetName = 'DeltaLink')] [string] $DeltaLink, [Int64] $ResultSize = (Get-PSFConfigValue -FullName 'MSGraph.Query.ResultSize' -Fallback 100), [MSGraph.Core.AzureAccessToken] $Token, [string] $FunctionName = $MyInvocation.MyCommand ) #region variable definition $Token = Resolve-Token -Token $Token -FunctionName $FunctionName if($PSCmdlet.ParameterSetName -like "DeltaLink") { Write-PSFMessage -Level VeryVerbose -Message "ParameterSet $($PSCmdlet.ParameterSetName) - constructing delta query" -Tag "ParameterSetHandling" $restUri = $DeltaLink $Delta = $true $User = ([uri]$restUri).AbsolutePath.split('/')[2] } else { if(-not $User) { $User = $Token.UserprincipalName } $restUri = "https://graph.microsoft.com/v1.0/$(Resolve-UserString -User $User)/$($Field)" if($Delta) { $restUri = $restUri + "/delta" } } if ($ResultSize -eq 0) { $ResultSize = [Int64]::MaxValue } #if ($ResultSize -le 10 -and $restUri -notmatch '\$top=') { $restUri = $restUri + "?`$top=$($ResultSize)" } [Int64]$i = 0 [Int64]$overResult = 0 $tooManyItems = $false $output = @() #endregion variable definition #region query data do { Write-PSFMessage -Tag "RestData" -Level VeryVerbose -Message "Get REST data: $($restUri)" Clear-Variable -Name data -Force -WhatIf:$false -Confirm:$false -Verbose:$false -ErrorAction Ignore $invokeParam = @{ Method = "Get" Uri = $restUri Headers = @{ "Authorization" = "Bearer $( [System.Runtime.InteropServices.Marshal]::PtrToStringAuto([System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($token.AccessToken)) )" "Content-Type" = "application/json" } } $data = Invoke-RestMethod @invokeParam -ErrorVariable "restError" -Verbose:$false -UseBasicParsing if($restError) { Stop-PSFFunction -Tag "RestData" -Message $parseError[0].Exception -Exception $parseError[0].Exception -EnableException $false -Category ConnectionError -FunctionName $FunctionName return } if("Value" -in $data.psobject.Properties.Name) { # Multi object with value property returned by api call [array]$value = $data.Value Write-PSFMessage -Tag "RestData" -Level VeryVerbose -Message "Retrieving $($value.Count) records from query" $i = $i + $value.Count if($i -lt $ResultSize) { $restUri = $data.'@odata.nextLink' } else { $restUri = "" $tooManyItems = $true $overResult = $ResultSize - ($i - $value.Count) Write-PSFMessage -Tag "ResultSize" -Level Verbose -Message "Resultsize ($ResultSize) exeeded. Output $($overResult) object(s) in record set." } } else { # Multi object with value property returned by api call Write-PSFMessage -Tag "RestData" -Level VeryVerbose -Message "Single item retrived. Outputting data." [array]$value = $data $restUri = "" } if((-not $tooManyItems) -or ($overResult -gt 0)) { # check if resultsize is reached if($overResult -gt 0) { $output = $output + $Value[0..($overResult-1)] } else { $output = $output + $Value } } } while ($restUri) #endregion query data #region output data $output | Add-Member -MemberType NoteProperty -Name 'User' -Value $User -Force if($Delta) { if('@odata.deltaLink' -in $data.psobject.Properties.Name) { $output | Add-Member -MemberType NoteProperty -Name '@odata.deltaLink' -Value $data.'@odata.deltaLink' -PassThru } else { $output | Add-Member -MemberType NoteProperty -Name '@odata.deltaLink' -Value $data.'@odata.nextLink' -PassThru } } else { $output } if($tooManyItems) { # write information to console if resultsize exceeds if($Delta) { Write-PSFMessage -Tag "GetData" -Level Host -Message "Reaching maximum ResultSize before finishing delta query. Next delta query will continue on pending objects. Current ResultSize: $($ResultSize)" -FunctionName $FunctionName } else { Write-PSFMessage -Tag "GetData" -Level Warning -Message "Too many items. Reaching maximum ResultSize before finishing query. You may want to increase the ResultSize. Current ResultSize: $($ResultSize)" -FunctionName $FunctionName } } #endregion output data } |