Question

I have a grails webservice that takes a binary file as a parameter. This is basically what it looks like:

def index = {
    switch(request.method){
    case "POST":
    def uploadedFile = request.getFile('file')
    File f=new File('c:/dev/newfile.tar');
    uploadedFile.transferTo(f);
    //do something with f
    break
    }
}

In order to test this, I was using curl – like so:

curl -F file=@somefile.tar http://localhost:8080/MyWebS/fileWS

The key being that in order for grails to know how to get the file, I had to define that file=thefile in the curl command.

How does this translate to getting C# to call this same webservice, and pass it a file. What would the file look like? a byte array?

Answer 1

The simplest way is to use one of the WebClient.UploadFile overloads:

new WebClient().UploadFile("http://localhost:8080/MyWebS/fileWS",
                           "somefile.tar");

If you need more control than that offers, you can use HttpWebRequest.