blob: ee36ed45dc8a50879df78e49a8c946773eaa9863 [file] [log] [blame]
/**
* This function transforms a JS object `ObjMap<Promise<T>>` into
* a `Promise<ObjMap<T>>`
*
* This is akin to bluebird's `Promise.props`, but implemented only using
* `Promise.all` so it will work with any implementation of ES6 promises.
*/
export default function promiseForObject(object) {
var keys = Object.keys(object);
var valuesAndPromises = keys.map(function (name) {
return object[name];
});
return Promise.all(valuesAndPromises).then(function (values) {
return values.reduce(function (resolvedObject, value, i) {
resolvedObject[keys[i]] = value;
return resolvedObject;
}, Object.create(null));
});
}