XML response to an express API - json

Question

I have a node js program, which uses the express framework. What happens, is a POST request is made using Postman to my API, and I deal with the request as required (which works great).
However, I want send back an XML response to the API call. So doing some digging online, I have found this library - https://www.npmjs.com/package/xml
I tried to adapt it to my code, so I need to convert the following json object into an XML response:
var responseJson = [{
"methodResponse": {
"params": {
"param": {
"value": {
"struct": {
"member": [
{
"name": "myValue",
"value": {
"string": "hi"
}
}
]
}
}
}
}
}
}];
And then in the response I do the following:
res.header('Content-Type', 'text/xml');
res.send(xml(responseXml, true));
However this only returns:
<methodResponse/>
and nothing else in the Postman response.
Any idea what happened to the rest and why only one line is returned? Is there a better way to do this? Thanks

Answer 1

You need to put square brackets around your objects.
const data = [{
"methodResponse": [{
"params": [{
"param": [{
"value": [{
"struct": [{
"member": [{
"name": "myValue",
},{
"value": [{
"string": "hi"
}]
}]
}]
}]
}]
}]
}]
}];
Which will produce:
<methodResponse><params><param><value><struct><member><name>myValue</name><value><string>hi</string></value></member></struct></value></param></params></methodResponse>