Using PutObject with stdin (eg passing std::cin to request.SetBody().

[RobertPHeller]

I would like to write a program that uses S3 PutObject function and use stdin as the data source, but it is not possible to make an AWS::IOStream from std::cin and SetBody() (from StreamingS3Request) wants an IOStream and not an IStream. I would like to use my program in a pipeline, but it looks like I can't do that... What sort of workarounds are possible? I can't just save the pipeline to a file -- it could be too big and/or cause other trouble (like being on a file system currently being backed up, etc.).

[jmklix]

You can set a StringStream with the input that you want to use and then pass that to SetBody(). Here is a code snippet that I got working to show you how to do this:

        std::shared_ptr<Aws::IOStream> inputData = Aws::MakeShared<Aws::StringStream>("allocTag");
        Aws::String sTemp;
        std::getline(std::cin, sTemp);
        *inputData << sTemp;
        request.SetBody(inputData);

Let me know if you have any more questions about how to use this sdk.