rubberguppe/utils/index.js

38 lines
No EOL
968 B
JavaScript

const ASContext = 'https://www.w3.org/ns/activitystreams';
function convertId(obj) {
if (obj._id) {
obj.id = obj._id
delete obj._id
}
return obj
}
function isObject(value) {
return value && typeof value === 'object' && value.constructor === Object
}
// outtermost closure starts the recursion counter
// const level = 0;
function traverseObject(obj, f) {
const traverse = o => {
// const level = level + 1
// if (level > 5) return o
traverseObject(o, f)
}
if (!isObject(obj)) return obj;
Object.keys(obj).forEach(traverse)
return f(obj);
}
module.exports.toJSONLD = function (obj) {
obj['@context'] = ASContext;
return obj;
}
module.exports.arrayToCollection = function (arr, ordered) {
return {
'@context': ASContext,
totalItems: arr.length,
type: ordered ? 'orderedCollection' : 'collection',
[ordered ? 'orderedItems' : 'items']: arr,
}
}