eureka-client-ts
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162 lines • 7.56 kB
JavaScript
;
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Object.defineProperty(exports, "__esModule", { value: true });
var address = require("address");
var client_1 = require("./client");
var pool_1 = require("./pool");
var utils_1 = require("./utils");
var NODE_ENV = process.env.NODE_ENV || 'dev';
var Eurekaclient = /** @class */ (function () {
function Eurekaclient(options) {
options.services.push(options.appName);
this.opts = options;
this.eureka = client_1.default(options);
this.pool = new pool_1.default(this.eureka, this.opts.services);
}
/**
* 启动eureka
* @returns Promise<Eureka>
*/
Eurekaclient.prototype.start = function () {
return __awaiter(this, void 0, void 0, function () {
var _a, opts, eureka;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_a = this, opts = _a.opts, eureka = _a.eureka;
if (NODE_ENV)
eureka.start();
return [4 /*yield*/, utils_1.sleep(5000)
// 如果是生产环境,开启服务掉线校验
];
case 1:
_b.sent();
// 如果是生产环境,开启服务掉线校验
this.checkServiceHasNeedRegistry(opts.appName);
return [2 /*return*/];
}
});
});
};
/**
* stop
*/
Eurekaclient.prototype.stop = function () {
this.eureka.stop();
};
/**
* 获取指定应用的ip
* @param {(string | number)} name 应用名
* @param {(string)} localIp 客户端IP
* @param {string} [filterGroup] 要过滤的group service
*/
Eurekaclient.prototype.getHost = function (name, localIp, filterGroup) {
if (!NODE_ENV) {
var ip = address.ip();
return "http://" + ip + ":" + this.opts.port;
}
return this.pool.getHost(name, localIp, filterGroup);
};
/** 获取代理信息(客户端IP, serviceGroupKey) */
Eurekaclient.prototype.getProxyInfoFromReq = function (req) {
var name = '_duibaServiceGroupKey';
var reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
// 获取多场景的cookie
var arr = [];
var serviceGroupKey = '';
if (req.headers.cookie && (arr = req.headers.cookie.match(reg))) {
serviceGroupKey = unescape(arr[2]);
}
// 获取客户端ip地址
var ip = req.headers['x-real-ip'] || req.headers['x-forwarded-for'] || req.connection.remoteAddres || req.socket.remoteAddress || '';
if (ip.indexOf('::ffff:') !== -1) {
ip = ip.substring(7);
}
return { ip: ip, serviceGroupKey: serviceGroupKey };
};
/**
* 获取所有eureka
*/
Eurekaclient.prototype.getAllEurekas = function () {
return this.pool.getAllEurekas();
};
/**
* 获取所有实例下的host
*/
Eurekaclient.prototype.getAllHostName = function () {
return this.pool.getAllHostName();
};
/**
* 检查eureka服务是否掉线，掉线则重新注册服务
* @param {string} appName
* @memberof Eurekaclient
*/
Eurekaclient.prototype.checkServiceHasNeedRegistry = function (appName) {
var _this = this;
var timer = null;
// 服务开始注册后1分钟启动监听，每隔10s检查该服务是否不存在，如不存在重新注册
timer = setInterval(function () { return __awaiter(_this, void 0, void 0, function () {
var instances;
var _a, _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0: return [4 /*yield*/, this.eureka.getInstancesByAppId(appName)];
case 1:
instances = _c.sent();
if (!((instances === null || instances === void 0 ? void 0 : instances.length) === 0)) return [3 /*break*/, 4];
console.log('服务出错');
(_a = global['Log']) === null || _a === void 0 ? void 0 : _a.error("eureka", appName + " \u670D\u52A1\u6389\u7EBF");
clearInterval(timer);
return [4 /*yield*/, this.eureka.start()];
case 2:
_c.sent();
(_b = global['Log']) === null || _b === void 0 ? void 0 : _b.error("eureka", appName + " \u91CD\u65B0\u6CE8\u518C");
return [4 /*yield*/, utils_1.sleep(10000)];
case 3:
_c.sent();
this.checkServiceHasNeedRegistry(appName);
_c.label = 4;
case 4: return [2 /*return*/];
}
});
}); }, 10000);
};
return Eurekaclient;
}());
exports.default = Eurekaclient;
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