How to add a timer and it's events in a WCF Application Service

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How do I add a timer and it's events in my WCF Application Service ?
My WCF receives files from a client and I save them in a SQL Server Database.
I would like to send the received files to an other service that I do not control. But I don't want to make the client wait for a return of the [OperationContract] while I do this. I want to send it afterwards.

Here's a code example of my original source

C#

public ServiceFeedback UploadFileToServer(byte[] file)
{
    FileModel dbFile = database.FileModel.Add(new FileModel(file)); // Adding to database...
    SendToOtherService(dbFile); // Sending to other service, I want to remove this from here and put it in an other function. It makes the client wait for the return

    if(NoErrors = true)
        return ServiceFeedback.OK;
    else
            return ServiceFeedback.ERROR;
}

Posted 15-Jul-14 3:27am

Yannick Brodard

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Comments

johannesnestler 15-Jul-14 9:50am

make the other service call async....

RaisKazi 15-Jul-14 10:32am

Have you considered hosing your WCF in Windows Service Application? which will give you leverage of Timer feature.

Sergey Alexandrovich Kryukov 15-Jul-14 10:56am

Why a timer? Please, explain your ultimate goals. How can you possibly send something to the service you don't control? At least such service can accept the files, but how a timer should help?
—SA

Yannick Brodard 16-Jul-14 3:13am

Thank you for the comments, it helped me a lot. :)

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Yannick Brodard · Accepted Answer · 2014-07-15T21:12:00

Thanks to the comments, I found out that I didn't need a timer but instead an async on the SendToOtherService(dbFile), so SendToOtherService became SendToOtherServiceAsync. Thank you very much for your comments.

C#

public async void SendToOtherServiceAsync(FileModel dbFile)
{
    // Preparing file for sending...
    string response = await Send(formatedDbFile);
}

The Send method contains the some XML that I send via https

C#

public Task<string> Send(FormatedFile file)
{
    return Task<string>.Factory.StartNew(() =>
    {
        // Sends XML via https...
        return response;
    });
}

If you have better solutions I would be happy to see them :)