public/Invoke-RetryRequest.ps1
<# .SYNOPSIS This function invokes a request with retry logic for rate limiting (HTTP 429 responses). .DESCRIPTION The Invoke-RetryRequest function sends a request using the provided parameters. If the API returns a 429 response (Too Many Requests), the function will wait and retry the request. The wait time increases exponentially with each subsequent 429 response. .PARAMETER method Optional. The HTTP method to use for the request. Defaults to 'get'. .PARAMETER uri Mandatory. The URI of the endpoint to which the request will be sent. .PARAMETER headers Optional. A hashtable of headers to include in the request. .PARAMETER body Optional. The body of the request, if applicable, if method is get, used as query parameter. .PARAMETER maxRetrySeconds Optional. The maximum number of seconds to continue retrying the request. Defaults to 2000. .EXAMPLE Invoke-RetryRequest -uri "https://graph.microsoft.com/beta/users" -method "get" #> function Invoke-RetryRequest { [CmdletBinding()] param ( [Parameter(ValueFromPipelineByPropertyName)] [string] $method = 'get', [Parameter(Mandatory, ValueFromPipelineByPropertyName)] [string] $uri, [Parameter(Mandatory = $false)] [hashtable] $headers = $null, [Parameter(Mandatory = $false)] [object] $body = $null, [Parameter(Mandatory = $false)] [int] $maxRetrySeconds = 2000 ) Write-Verbose "Invoking retry request with uri: $uri" $sleepDuration = 0 $retry = $false do { try { $retry = $false Invoke-RestMethod -Method $method -Headers $headers -ContentType 'application/json' -Uri $uri -Body $body -ErrorAction Stop -Verbose:$false } catch { if ($_.Exception.Response.StatusCode.value__ -ne 429) { $retry = $false; throw $_ } $sleepDuration = $sleepDuration -eq 0 ? 4 : $sleepDuration * 2 $retry = $true Write-Verbose "API returned 429, retrying in $sleepDuration seconds" Start-Sleep -Seconds $sleepDuration } } until ( -not $retry -or ($sleepDuration -ge $maxRetrySeconds) ) } # 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