@medusajs/utils
Version:
Medusa utilities functions shared by Medusa core and Modules
100 lines • 3.09 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.deepFlatMap = deepFlatMap;
const is_defined_1 = require("./is-defined");
const is_object_1 = require("./is-object");
/**
* @description
* This function is used to flatten nested objects and arrays
*
* @example
*
* ```ts
* const data = {
* root_level_property: "root level",
* products: [
* {
* id: "1",
* name: "product 1",
* variants: [
* { id: "1.1", name: "variant 1.1" },
* { id: "1.2", name: "variant 1.2" },
* ],
* },
* {
* id: "2",
* name: "product 2",
* variants: [
* { id: "2.1", name: "variant 2.1" },
* { id: "2.2", name: "variant 2.2" },
* ],
* },
* ],
* }
*
* const flat = deepFlatMap(
* data,
* "products.variants",
* ({ root_, products, variants }) => {
* return {
* root_level_property: root_.root_level_property,
* product_id: products.id,
* product_name: products.name,
* variant_id: variants.id,
* variant_name: variants.name,
* }
* }
* )
* ```
*/
function deepFlatMap(data, path, callback) {
const ROOT_LEVEL = "root_";
const keys = path.split(".");
keys.unshift(ROOT_LEVEL);
const lastKey = keys[keys.length - 1];
const stack = [{ element: { [ROOT_LEVEL]: data }, path: keys, context: {} }];
const results = [];
while (stack.length > 0) {
const { element, path, context } = stack.shift();
const currentKey = path[0];
const remainingPath = path.slice(1);
if (!(0, is_defined_1.isDefined)(element?.[currentKey])) {
callback({ ...context });
continue;
}
if (remainingPath.length === 0) {
if (Array.isArray(element[currentKey])) {
element[currentKey].forEach((item) => {
results.push(callback({ ...context, [lastKey]: item }));
});
}
else if ((0, is_object_1.isObject)(element[currentKey])) {
results.push(callback({ ...context, [lastKey]: element[currentKey] }));
}
}
else {
if (Array.isArray(element[currentKey])) {
if (element[currentKey].length === 0) {
callback({ ...context });
continue;
}
element[currentKey].forEach((item) => {
stack.push({
element: item,
path: remainingPath,
context: { ...context, [currentKey]: item },
});
});
}
else if ((0, is_object_1.isObject)(element[currentKey])) {
stack.push({
element: element[currentKey],
path: remainingPath,
context: { ...context, [currentKey]: element[currentKey] },
});
}
}
}
return results;
}
//# sourceMappingURL=deep-flat-map.js.map