script to test expiry

fix for expiry script

Author: bryanbcook

src/test-token-expiry.ps1

@@ -0,0 +1,16 @@
+$credentialCache = Get-Content $env:userprofile\.psblogger\credentialcache.json -Raw | ConvertFrom-Json
+
+$uri = "https://oauth2.googleapis.com/tokeninfo?access_token=$($credentialCache.access_token)"
+
+try {
+  $tokenInfo = Invoke-RestMethod -Uri $uri
+  $expiry = [System.DateTimeOffset]::FromUnixTimeSeconds($tokenInfo.exp).LocalDateTime
+  if ($expiry -lt (Get-Date)) {
+      Write-Host "Token has expired!"
+  } else {
+      Write-Host "Token expires at $expiry ($([int]($tokenInfo.expires_in/60)) minutes)"
+  }  
+}
+catch {
+  Write-Host "Error occurred while checking token expiry: $_"
+}