Private/Helper/Test-CWMRetryable.ps1
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function Test-CWMRetryable { # Retry only when repeating the request cannot create a duplicate: # - 429 Too Many Requests: the server rejected the request before processing it, any method. # - 502/503/504 gateway/availability errors: GET/HEAD only, or a request marked -ReadOnly (a search POST such # as /service/tickets/search, which reads and changes nothing). A POST/PATCH/PUT/DELETE that writes may # already have been applied before the gateway failed, so repeating it could create a duplicate ticket or # time entry. # Other 4xx/5xx (bad request, auth, not found, conflict, 500) are not transient and are never retried. [CmdletBinding()] [OutputType([bool])] param([int]$StatusCode, [string]$Method, [switch]$ReadOnly) if ($StatusCode -eq 429) { return $true } if (@(502, 503, 504) -notcontains $StatusCode) { return $false } return ($ReadOnly -or !$Method -or @('Get', 'Head') -contains $Method) } |