moleculer-api
Version:
A dynamic API Gateway for MoleculerJS which updates REST endpoints and aggregated GraphQL schema, access control policy for each action calls from metadata of remote services schema without restart or deployment.
78 lines • 2.61 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ServiceCatalog = void 0;
class ServiceCatalog {
constructor(map) {
this.serviceIdItemsMap = map || new Map();
this.actionMap = new Map();
// indexing action map
for (const items of this.serviceIdItemsMap.values()) {
for (const item of items) {
this.setActions(item.service);
}
}
}
clone() {
const map = new Map();
for (const [serviceId, items] of this.serviceIdItemsMap.entries()) {
map.set(serviceId, items.slice());
}
return new ServiceCatalog(map);
}
get size() {
return this.serviceIdItemsMap.size;
}
get(serviceId) {
const items = this.serviceIdItemsMap.get(serviceId);
return items && items[0] || null;
}
get services() {
return Array.from(this.serviceIdItemsMap.values())
.reduce((services, items) => services.concat(items.map(item => item.service)), []);
}
add(item) {
const serviceId = item.service.id;
if (!this.serviceIdItemsMap.has(serviceId)) {
this.serviceIdItemsMap.set(serviceId, []);
}
const items = this.serviceIdItemsMap.get(serviceId);
items.unshift(item);
// make descending order by priority. And for the services having same priority will remain the relative orders between each others.
items.sort((a, b) => b.priority - a.priority);
this.setActions(items[0].service, true);
}
remove(service) {
const items = this.serviceIdItemsMap.get(service.id);
if (!items) {
return false;
}
const itemIndex = items.findIndex(item => item.service === service);
if (itemIndex === -1) {
return false;
}
items.splice(itemIndex, 1);
// reset preferred action map
this.removeActions(service);
for (const item of items) {
this.setActions(item.service);
}
return true;
}
findAction(id) {
return this.actionMap.get(id) || null;
}
setActions(service, override = false) {
for (const [id, action] of service.actionMap) {
if (override || !this.actionMap.has(id)) {
this.actionMap.set(id, action);
}
}
}
removeActions(service) {
for (const id of service.actionMap.keys()) {
this.actionMap.delete(id);
}
}
}
exports.ServiceCatalog = ServiceCatalog;
//# sourceMappingURL=catalog.js.map