functions/github/New-GitHubAppInstallationAccessToken.ps1
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function New-GitHubAppInstallationAccessToken { [CmdletBinding()] param ( [Parameter(Mandatory=$True)] [string] $AppId, [Parameter(Mandatory=$True)] [string] $AppPrivateKey, [Parameter(Mandatory=$True)] [string] $OrgName ) $jwt = New-GitHubJWT -Issuer $AppId ` -PrivateKeyPem $AppPrivateKey ` -ValidforSeconds 300 $bearerHeaders = @{ Authorization = "Bearer $jwt" Accept = 'application/vnd.github.machine-man-preview+json' } # Use JWT to get list of avaiable installations for this GitHub App Write-Verbose "Looking-up InstallationId for $OrgName" $resp = Invoke-WebRequest ` -Headers $bearerHeaders ` -Method GET ` -Uri 'https://api.github.com/app/installations' ` -Verbose:$False # Lookup the installationId for the required GitHub Org $installation = $resp.Content | ConvertFrom-Json | Where-Object { $_.account.login -eq $OrgName } if (!$installation) { throw ("The GitHub App is not installed in the '{0}' organisation" -f $OrgName) } $installationId = $installation.id Write-Verbose ("InstallationId: {0}" -f $installationId) # Request an installation token Write-Verbose "Requesting InstallationAccessToken for $installationId" $resp = Invoke-WebRequest ` -Headers $bearerHeaders ` -Method POST ` -Uri "https://api.github.com/app/installations/$installationId/access_tokens" ` -Verbose:$False $installationToken = ($resp | ConvertFrom-Json).token return $installationToken } |