public static async Task <string> GetGithubAppTokenAsync(ApplicationConfig appConfig, string privateKey)
{
if (appConfig == null)
{
throw new ArgumentNullException(nameof(appConfig), "Parameter cannot be null.");
}
if (string.IsNullOrEmpty(privateKey))
{
throw new ArgumentNullException(nameof(privateKey), "Parameter cannot be null or empty.");
}
try
{
var utcNow = DateTime.UtcNow;
var payload = new Dictionary <string, object>
{
{ "iat", ToUtcSeconds(utcNow) },
{ "exp", ToUtcSeconds(utcNow.AddSeconds(600)) }, // 10 minutes is the maximum time allowed
{ "iss", appConfig.GitHubAppId } // The GitHub App Id
};
var jwtToken = JwtHelper.CreateEncodedJwtToken(privateKey, payload);
// Pass the JWT as a Bearer token to Octokit.net
var appClient = new GitHubClient(new ProductHeaderValue(appConfig.GitHubAppName))
{
Credentials = new Credentials(jwtToken, AuthenticationType.Bearer)
};
// Get a list of installations for the authenticated GitHub App and installationID for the GitHub Organization
var installations = await appClient.GitHubApps.GetAllInstallationsForCurrent();
var id = installations.Where(installation => installation.Account.Login == appConfig.GitHubOrganization)
.FirstOrDefault().Id;
// Create an Installation token for the GitHub Organization installation instance
var response = await appClient.GitHubApps.CreateInstallationToken(id);
string token = response.Token;
return(token);
}
catch (Exception ex)
{
throw ex;
}
}
