whale-nest-nacos/lib/baseNacos/TierNacosClient.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());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.TierNacosClient = void 0;
const BaseNacosConfigClient_1 = __importDefault(require("./common/BaseNacosConfigClient"));
const constant_1 = require("../constant");
class TierNacosClient {
    constructor(options) {
        if (!TierNacosClient.instance) {
            TierNacosClient.configClient = new BaseNacosConfigClient_1.default({
                serverAddr: options.serverAddress,
                namespace: options.namespace,
                requestTimeout: constant_1.REQUESTTIMEOUT,
                responseTimeout: constant_1.RESPONSETIMEOUT,
                connectTimeout: constant_1.CONNECTTIMEOUT,
                endpoint: options.endpoint
            });
            TierNacosClient.instance = this;
        }
        return TierNacosClient.instance;
    }
    ready() {
        return __awaiter(this, void 0, void 0, function* () {
            yield TierNacosClient.configClient.ready();
        });
    }
    getTierConfig() {
        var _a;
        return __awaiter(this, void 0, void 0, function* () {
            // await TierNacosClient.configClient.ready()
            this.subscribe();
            const tierConfig = yield ((_a = TierNacosClient.configClient) === null || _a === void 0 ? void 0 : _a.getConfig(constant_1.TIER_VERSION, constant_1.TIER_ENVIRON));
            console.log(`tier ${constant_1.TIER_VERSION},${constant_1.TIER_ENVIRON} 配置获取成功！配置为：`, tierConfig);
            if (tierConfig) {
                this.tierConfig = JSON.parse(tierConfig);
            }
            else {
                this.tierConfig = [];
                throw new Error(`应用 ${process.env.SERVICE_NAME} 的tier配置不存在！`);
            }
            return this.tierConfig;
        });
    }
    subscribe() {
        var _a;
        return __awaiter(this, void 0, void 0, function* () {
            (_a = TierNacosClient.configClient) === null || _a === void 0 ? void 0 : _a.subscribe({
                dataId: constant_1.TIER_VERSION,
                group: constant_1.TIER_ENVIRON
            }, (content) => {
                if (content) {
                    console.log(`tier ${constant_1.TIER_VERSION},${constant_1.TIER_ENVIRON} 配置获取成功！配置为：`, content);
                    this.tierConfig = JSON.parse(content);
                }
                else {
                    throw new Error(`应用 ${process.env.SERVICE_NAME}  '${constant_1.TIER_VERSION}' '${constant_1.TIER_ENVIRON}' 配置不存在！`);
                }
            });
        });
    }
}
exports.TierNacosClient = TierNacosClient;
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