const xml2js = require('xml2js')
const input = {
RootElement: {
id: "1234",
name: "Foo",
children: [
{
id: "5678",
name: "Bar",
props: [
{
name: "Baz",
code: "ABC"
},
{
name: "Qux",
code: "DEF"
}
]
}
]
}
}
const prefixProps = (pre) => (obj) =>
Array.isArray (obj)
? obj .map (prefixProps (pre))
: Object (obj) === obj
? Object .fromEntries (Object .entries (obj)
.map (([k, v]) => [
`${pre}:${k}`,
prefixProps (pre) (v)
])
)
: obj
const addNamespace = (pre, ns) => (obj) =>
Object .fromEntries (Object .entries (prefixProps (pre) (obj))
.map (([k, v]) => [ // TODO: syntactic cleanup
k,
(
(
Array .isArray (v)
? v = {$: {[`xmlns:${pre}`]: ns}, _: v}
: Object(v) === v
? v.$ = {[`xmlns:${pre}`]: ns}
: v = {$: {[`xmlns:${pre}`]: ns}, _: v}
),
v
)
])
)
const converted = {RootElement: addNamespace ('ns1', 'http://my.namespace') (input.RootElement)}
console .log (converted)
console .log (JSON.stringify (converted, null, 4))
const builder = new xml2js.Builder({headless: true});
const xml = builder.buildObject (converted)
console .log (xml)
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