whale-nest-nacos/lib/discovery/index.js

If you are a nest micro service architecture, you can use the SDK, so as to realize service discovery based on nacos, distributed load balancing strategy

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getTierServiceUrl = void 0;
const constant_1 = require("../constant");
const Discoverer_1 = require("./Discoverer");
function getTierServiceUrl(options) {
    return __awaiter(this, void 0, void 0, function* () {
        const _options = Object.assign({
            serverAddress: constant_1.serverAddress,
            namespace: constant_1.TIER_NAMESPACE,
            endpoint: '8888',
            logger: console
        }, options);
        const discoverer = new Discoverer_1.Discoverer(_options);
        yield discoverer.ready();
        yield discoverer.getTierConfig();
        yield discoverer.selectHealthyInstances();
        console.log('pods：', discoverer.Pods);
        if (discoverer.Pods && discoverer.Pods.length) {
            return discoverer.Pods[0];
        }
        else {
            console.error('未获取到任何实例！');
            return false;
        }
    });
}
exports.getTierServiceUrl = getTierServiceUrl;
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