Public/New-MSPPartnerAppSecret.ps1
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function New-MSPPartnerAppSecret { Connect-MSPPartner -Scopes "Application.ReadWrite.All" $partnerAppName = "MSP365 Partner App" try { $existingAppsResponse = Invoke-MgGraphRequest -Method GET -Uri "/v1.0/applications?`$filter=displayName eq '$partnerAppName'" -OutputType PSObject $existingApps = $existingAppsResponse.value } catch { Write-Host "❌ Failed to get app registration: $_" -ForegroundColor Red exit } if (!$existingApps) { Write-Host "❌ No existing app found with the name $partnerAppName, run 'Register-MSPPartnerApp first" -ForegroundColor Red exit } else { $AppId = $existingApps.id } if ($existingApps.Count -gt 1) { Write-Host "Multiple app registrations found with the name $partnerAppName, run 'Register-MSPPartnerApp' first to create a new one" -ForegroundColor Red exit } # Remove existing app secret if found try { $existingAppSecretsResponse = Invoke-MgGraphRequest -Method GET -Uri "/v1.0/applications/$AppId/passwordCredentials" -OutputType PSObject -ErrorAction Stop $existingAppSecrets = $existingAppSecretsResponse.value } catch { Write-Host "❌ Failed to get existing app secrets: $($_.Exception)" -ForegroundColor Red exit } if ($existingAppSecrets) { # Ask users if they want to remove the existing app secret $removeExistingAppSecret = Read-Host "Existing app secret(s) was found. Do you want to remove it? (Y/N)" if ($removeExistingAppSecret -ne "Y" -and $removeExistingAppSecret -ne "y") { Write-Host "App secret creation cancelled" -ForegroundColor Yellow exit } foreach ($existingAppSecret in $existingAppSecrets) { $uri = "/v1.0/applications/$AppId/passwordCredentials/$($existingAppSecret.keyId)" Invoke-MgGraphRequest -Method DELETE -Uri $uri Write-Host "✅ Existing app secret removed" } } $body = @{ passwordCredentials = @( @{ displayName = $partnerAppName } ) } | ConvertTo-Json $MSPPartnerAppSecret = (Invoke-MgGraphRequest -Method POST -Uri "/v1.0/applications/$AppId/addPassword" -Body $body -ContentType "application/json" -OutputType PSObject).SecretText Write-Host "✅ New app secret created: $MSPPartnerAppSecret" -ForegroundColor Green return $MSPPartnerAppSecret } |