I have an xml document that I generated in C#, I would like to return the string/document via WCF/REST so it will be downloaded by the browser. What is the operationcontract/return type that I should use? And how can I get it to be prompted to save by javascript and the browser.
I had the similar issue with NodeJS backend.
I returned XML as a string and then on front-end I used next code:
<a href="data:text/xml,HERE WILL BE YOUR XML" download="filename.xml">Download</a>
Your operation contract should not be one way and you should return Stream
[OperationContract(IsOneWay = false)]
[WebGet(UriTemplate = "GetXml/{xmlFileName}")]
Stream GetXml(string xmlFileName);
public Stream GetXml(string xmlFileName)
{
WebOperationContext.Current.OutgoingResponse.ContentType = "application/octet-stream";
string xmlLocation=GetXmlLocation(xmlFileName);
try
{
return File.OpenRead(xmlLocation);
}
catch
{
// File Not Found
return null;
}
}
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