How do I use Sinatra to serve XML documents?

Question

I have some XML documents that I'd like to server from Sinatra. I did some searching but couldn't find anything specific. I did find the builder gem but I don't want to build the document from scratch.

I tried to do something like this

get '/'
  xml = '<?xml version=\"1.0\" encoding=\"UTF-8\"?> <name>My name</name> <age>90</age>'
  body xml
end

but that will add the HTML tags around it. It's probably something really basic I'm missing. Can you point me in the right direction please?

Answer 1

This is very simple with Sinatra:

get '/' do
  content_type 'text/xml'
  "<name>Luis</name><age>99</age>"
end

On get '/' the response will be the XML "<name>Luis</name><age>99</age>" with the correct content_type.

Answer 2

As answered below, in addition Wagner's answer of adding the content type, you must include only one XML root element http://www.w3schools.com/xml/xml_syntax.asp otherwise Sinatra will raise an exception.

So the complete answer is:

get '/'
  content_type 'text/xml'
  '<?xml version=\"1.0\" encoding=\"UTF-8\"?><root><name>My name</name> <zage>90</age></root>'
end