src/cmdlets/Get-GraphLog.ps1
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# Copyright 2021, Adam Edwards # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. . (import-script ../REST/RequestLog) <# .SYNOPSIS Retrieves a log of the all of the REST requests to the Graph and associated responses issued by this module in the PowerShell session. .DESCRIPTION When a command such as Get-GraphResource or Invoke-GraphApiRequest issues a request to the Graph, the details of that request, including the URI, http method, headers, along with details of the response are recorded as entries in a log. The Get-GraphLog command returns a collection of log entries, where each request is a log entry. This command is useful for troubleshooting / diagnosis, analyzing performance, or simply exploring and understanding the Graph protocol. Entries are returned by this command in reverse chronological order. The results of the command may be piped to other PowerShell commands such as Sort-Object to provide other sort orders, filtering, projected properties, or formatting of the log entries. The Clear-GraphLog command may be used to remove all entries from the log. The Set-GraphLogOption command may also be used to disable logging altogether. .PARAMETER Newest The Newest parameter specifies the maximum number of log entries to return from the command, and that those entries must be the newest such entries. This parameter may be specified as the first parameter without an explicit name, and its default value is 20. .PARAMETER Oldest This parameter is similar to Newest, except that the oldest set of entries of the size specified by this parameter are returned. .PARAMETER Skip This specifies the number of entries to skip. .PARAMETER StatusFilter Filters the kinds of requests emitted by their status: * None (default): there is no filter; requests of any status are emitted * Error: only failed requests (e.g. 400s, 500s, etc.) are emitted * Success: only successful requests are emitted .PARAMETER All To retrieve all of the entries in the log without needing to know how many entries exist, specify the parameter. .OUTPUTS A collection of log entries sorted chronologically where each entry contains request and response details. .NOTES The request log is currently implemented as a circular, in-memory log. The log is configured with a maximum log size that determines the maximum number of log entries (one per request) stored in the log. This setting may be managed via the Get-GraphLogOption and Set-GraphLogOption commands. When the log has reached its maximum capacity, the next request that is logged will overwrite the earliest request in the log. .EXAMPLE Get-GraphLog RequestTimestamp Status Method Version Size ResourceUri ErrorResponse ---------------- ------ ------ ------- ---- ----------- ------------- 10/21/2019 11:50:11 PM 200 GET 163 ping 10/21/2019 11:51:33 PM 200 GET v1.0 415 me 10/21/2019 11:54:18 PM 201 POST beta 30009 applications 10/21/2019 11:54:25 PM 204 PATCH beta 4988 applications/4b44df3-824... 10/21/2019 11:54:29 PM 200 GET beta 562 servicePrincipals?$selec... 10/21/2019 10:14:31 PM 200 GET beta 80971 me/messages 10/21/2019 10:14:54 PM 404 GET v1.0 user {...Not found This shows a sequence of the 20 most recent calls issued from AutoGraphPS. To see more than just the 20 most recent, use the Oldest, Newest, or All options. .EXAMPLE Get-GraphLog -Oldest 3 RequestTimestamp Status Method Version Size ResourceUri ErrorResponse ---------------- ------ ------ ------- ---- ----------- ------------- 10/21/2019 10:14:54 PM 200 GET beta 80971 me/messages 10/21/2019 10:14:24 PM 404 GET v1.0 user {... Not foun 10/21/2019 9:27:04 PM 200 GET v1.0 163 ping This shows the newest 3 messages in the log. .EXAMPLE Get-GraphLog -Oldest 3 | Select Status, Method, ResourceUri Status Method ResourceUri ------ ------ ----------- 200 GET ping 404 GET me/messages 200 GET users This shows the oldest 3 entries, and pipes the output to select to project specific fields .EXAMPLE Get-GraphLog -StatusFilter Error 2019.11.04 21:59:54> get-graphlog -StatusFilter Error RequestTimestamp Status Method Version Size ResourceUri ErrorResponse ---------------- ------ ------ ------- ---- ----------- ------------- 11/4/2019 9:59:11 PM 403 GET v1.0 me/applications {... 11/4/2019 9:59:47 PM 404 GET v1.0 me2 {... "Not fou In this example, the StatusFilter parameter is specified with the value Error so that only failed requests are returned by the command. .LINK Set-GraphLogOption Get-GraphLogOption Clear-GraphLog Get-GraphResource Invoke-GraphApiRequest Test-Graph #> function Get-GraphLog { [cmdletbinding(positionalbinding=$false, defaultparametersetname='newest')] [OutputType('GraphLogEntryDisplayType')] param( [parameter(position=0, parametersetname='newest')] $Newest = 20, [parameter(parametersetname='oldest', mandatory=$true)] $Oldest, [parameter(parametersetname='oldest')] [parameter(parametersetname='newest')] $Skip = 0, [ValidateSet('None', 'Error', 'Success')] [string] $StatusFilter = 'None', [parameter(parametersetname='all', mandatory=$true)] [switch] $All ) $fromOldest = $Oldest -ne $null $count = if ( $fromOldest ) { [int] $Oldest } else { $Newest } $filterFlag = if ( $StatusFilter -ne 'None' ) { $StatusFilter -eq 'Error' } $results = ($::.RequestLog |=> GetDefault) |=> GetLogEntries $Skip $count $fromOldest $All.IsPresent $filterFlag # Results are sorted in reverse chronological order if enumerating from newest, but the reverse # is true for sorting from oldest. To ensure that for oldest the newest retrieved record is first, # reverse this so that we always return results in chronological order as part of a standard ux convention if ( $results ) { if ( $fromOldest -and ( $results -is [object[]] ) ) { $start = 0 $end = $results.length - 1 while ( $start -lt $end ) { $current = $results[$start] $results[$start++] = $results[$end] $results[$end--] = $current } } $results | foreach { $_ |=> ToDisplayableObject } } } |