public static async Task <object> ProcessVideo(
[OrchestrationTrigger] IDurableOrchestrationContext ctx,
ILogger log)
{
var videoLocation = ctx.GetInput <string>();
try
{
var transcodedLocations = await
ctx.CallSubOrchestratorAsync <string[]>(OrchestratorNames.Transcode,
videoLocation);
var transcodedLocation = transcodedLocations.First(x => x.Contains(".mp4")); // these are SAS tokens
var thumbnailLocation = await ctx.CallActivityWithRetryAsync <string>(ActivityNames.ExtractThumbnail,
new RetryOptions(TimeSpan.FromSeconds(5), 4), // {Handle = ex => ex.InnerException is InvalidOperationException}, - currently not possible #84
transcodedLocation);
var withIntroLocation = await ctx.CallActivityAsync <string>
(ActivityNames.PrependIntro, transcodedLocation);
// we need to give our suborchestrator its own id so we can send it events
// could be a new guid, but by basing it on the parent instance id we make it predictable
var approvalInfo =
new ApprovalInfo {
OrchestrationId = "XYZ" + ctx.InstanceId, VideoLocation = withIntroLocation
};
var approvalResult = await ctx.CallSubOrchestratorAsync <string>(OrchestratorNames.GetApprovalResult, approvalInfo.OrchestrationId, approvalInfo);
if (approvalResult == "Approved")
{
await ctx.CallActivityAsync(ActivityNames.PublishVideo,
new [] { transcodedLocation, thumbnailLocation, withIntroLocation });
return("Approved and published");
}
await ctx.CallActivityAsync(ActivityNames.RejectVideo,
new [] { transcodedLocation, thumbnailLocation, withIntroLocation });
return($"Not published because {approvalResult}");
}
catch (Exception e)
{
if (!ctx.IsReplaying)
{
log.LogError("Failed to process video with error " + e.Message);
}
await ctx.CallActivityAsync(ActivityNames.Cleanup, videoLocation);
return(new { Error = "Failed to process video", e.Message });
}
}
public static int SendApprovalRequestEmail(
[ActivityTrigger] ApprovalInfo approvalInfo,
[SendGrid(ApiKey = "SendGridKey")] out SendGridMessage message,
[Table("Approvals", "AzureWebJobsStorage")] out Approval approval,
ILogger log)
{
var approvalCode = Guid.NewGuid().ToString("N");
approval = new Approval
{
PartitionKey = "Approval",
RowKey = approvalCode,
OrchestrationId = approvalInfo.OrchestrationId
};
var approverEmail = new EmailAddress(Environment.GetEnvironmentVariable("ApproverEmail"));
var senderEmail = new EmailAddress(Environment.GetEnvironmentVariable("SenderEmail"));
var subject = "A video is awaiting approval";
log.LogInformation($"Sending approval request for {approvalInfo.VideoLocation}");
var host = Environment.GetEnvironmentVariable("WEBSITE_HOSTNAME") ?? "localhost:7071";
var functionAddress = $"http://{host}/api/SubmitVideoApproval/{approvalCode}";
var approvedLink = functionAddress + "?result=Approved";
var rejectedLink = functionAddress + "?result=Rejected";
var body = $"Please review {approvalInfo.VideoLocation}<br>"
+ $"<a href=\"{approvedLink}\">Approve</a><br>"
+ $"<a href=\"{rejectedLink}\">Reject</a>";
message = new SendGridMessage();
message.Subject = subject;
message.From = senderEmail;
message.AddTo(approverEmail);
message.HtmlContent = body;
log.LogWarning(body);
var approvalTimeoutSeconds = Environment.GetEnvironmentVariable("ApprovalTimeoutSeconds");
if (string.IsNullOrEmpty(approvalTimeoutSeconds))
{
return(30);
}
return(Int32.Parse(approvalTimeoutSeconds));
}
public static int SendApprovalRequestEmail(
[ActivityTrigger] ApprovalInfo approvalInfo,
[SendGrid(ApiKey = "SendGridKey")] out Mail message,
[Table("Approvals", "AzureWebJobsStorage")] out Approval approval,
TraceWriter log)
{
var approvalCode = Guid.NewGuid().ToString("N");
approval = new Approval
{
PartitionKey = "Approval",
RowKey = approvalCode,
OrchestrationId = approvalInfo.OrchestrationId
};
var approverEmail = new Email(ConfigurationManager.AppSettings["ApproverEmail"]);
var senderEmail = new Email(ConfigurationManager.AppSettings["SenderEmail"]);
var subject = "A video is awaiting approval";
log.Info($"Sending approval request for {approvalInfo.VideoLocation}");
var host = Environment.GetEnvironmentVariable("WEBSITE_HOSTNAME") ?? "localhost:7071";
var functionAddress = $"http://{host}/api/SubmitVideoApproval/{approvalCode}";
var approvedLink = functionAddress + "?result=Approved";
var rejectedLink = functionAddress + "?result=Rejected";
var body = $"Please review {approvalInfo.VideoLocation}<br>"
+ $"<a href=\"{approvedLink}\">Approve</a><br>"
+ $"<a href=\"{rejectedLink}\">Reject</a>";
var content = new Content("text/html", body);
message = new Mail(senderEmail, subject, approverEmail, content);
log.Warning(body);
var approvalTimeoutSeconds = ConfigurationManager.AppSettings["ApprovalTimeoutSeconds"];
if (string.IsNullOrEmpty(approvalTimeoutSeconds))
{
return(30);
}
return(Int32.Parse(approvalTimeoutSeconds));
}
