How to return XML response in Web API

Question

Happy new year everyobdy, After I serialize object using StringWriter and return output response and send to client. But when client receive the response: It has a tag like this:

<string xmlns="http://schemas.microsoft.com/...">
<?xml version="1.0" encoding="utf-16">
   <trx>.....</trx>
</string>

So, my questions are: 1. How should I return the correct format xml like below:

 <?xml version="1.0" encoding="utf-16">
       <trx>.....</trx>

2. If I send the response as byte[] using MemoryStream, does the client receive correct with encoding="utf-8" ?

Thank you so much! This is the code path I used for serializing:

StringWriter textWriter = new StringWriter();
XmlWriter tw = null;
XmlWriterSettings settings new XmlWriterSettings{
   Encoding =UnicodeEncoding.UTF8,
   Indent =false,
   OmitXmlDeclaration =false
};
var serialize1 =new XmlSerializer(typeof(OTrx));
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("","");
tw=XmlWriter.Create(textWriter,settings);
serializer1.Serialize(tw,oTrx,ns);
var output=textWriter.ToString();
return output

Can you provide a code snippet showing how you're doing your serialization. You simply state 'using StringWriter'. Also, regarding #2, it depends on how you're creating your response, so would need a code snippet of that as well to help. — mhand, Jan 04 '19 at 11:22

score 0 · Answer 1 · answered Jan 04 '19 at 11:12

0

Not sure if you are using .net core. If yes, then you can use this middleware nuget package - Microsoft.AspNetCore.Mvc.Formatters.Xml

Please refer this URL for code examples and detailed explanation.

answered Jan 04 '19 at 11:12

Manoj Choudhari

5,277
2
26
37

I'm not use .NET core :( – HienND Jan 04 '19 at 11:22
Please refer [this link](https://stackoverflow.com/questions/11662028/webapi-to-return-xml). Your header decides whether api will send JSOn or XML. – Manoj Choudhari Jan 04 '19 at 12:07
So what I need to do is just return the output serialize object, no need to care about the response type cus it's depend on the client side request header ? – HienND Jan 05 '19 at 03:08
You just need to return serializable object. Based on http headers either xml or json would be returned. – Manoj Choudhari Jan 05 '19 at 08:43
So I just need to return the output object ? but when I test using Postman, I cannot see the output as Xml like the format. – HienND Jan 08 '19 at 03:46
you mean in the code, I just need to do like this: return oTrx; ? – HienND Jan 08 '19 at 03:47
As far as I understand, yes. You can just rturnnobject. Try and let me know if it works for you. – Manoj Choudhari Jan 08 '19 at 05:51

score 0 · Answer 2 · answered Jan 04 '19 at 11:29

0

It would be useful if you shared some sample code but have you considered this?

If you return a string, you'll get a string.

answered Jan 04 '19 at 11:29

Txugo

5,008
5
33
40

Yes, I want to return the output like below, so what should I return the type of output: ..... – HienND Jan 05 '19 at 02:45

How to return XML response in Web API

2 Answers2