@drozd/nuxt-performance
Version:
Nuxt high load functional
179 lines • 8.26 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
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 __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
exports.__esModule = true;
var counterSlowRenderMap = new Map();
// общее кол-во медленных запросов
var allSlowCounter = 0;
var intervalCounter = null;
/**
* Отлупливает промис в заданное время по таймауту
* @param route
* @param timeoutMs
* @param promise
* @param failureMessage
*/
var promiseWithTimeout = function (route, timeoutMs, promise, failureMessage) {
var timeoutHandle;
var timeoutPromise = new Promise(function (_resolve, reject) {
timeoutHandle = setTimeout(function () {
if (!counterSlowRenderMap.has(route)) {
counterSlowRenderMap.set(route, {
count: 0,
endDisabledTimeSsr: 0
});
}
// @ts-ignore
counterSlowRenderMap.get(route).count++;
allSlowCounter++;
reject(new Error(failureMessage));
}, timeoutMs);
});
return Promise.race([
promise,
timeoutPromise
]).then(function (result) {
clearTimeout(timeoutHandle);
return result;
});
};
/**
* Проверяет не истекло ли время блокировки ССР в случае постоянных таймаутов
* @param route
*/
function checkTimeDisabledSsr(route) {
var info = counterSlowRenderMap.get(route);
if (!info) {
return;
}
if (info.endDisabledTimeSsr && info.endDisabledTimeSsr < +new Date()) {
allSlowCounter = allSlowCounter - info.count;
counterSlowRenderMap["delete"](route);
}
}
var nuxtPerformance = function (moduleOptions) {
var options = Object.assign({}, this.options.performance, moduleOptions);
if (options.disabled) {
console.log('[NuxtPerformance module] disabled.');
return;
}
if (!this.nuxt.renderer) {
return;
}
var defaultConfig = {
renderRouteTimeCallback: function (_route, _ms) { },
isOnlySPA: function (_route, _context) { return false; },
maxRenderTime: 2000,
maxAttemptSsr: 5,
excludeRoutes: /healthcheck/,
timeDisabledSsrWithRoute: 1000 * 60,
clearSlowCounterIntervalTime: 1000 * 60 * 5,
maxSlowCount: 100
};
var config = __assign(__assign({}, defaultConfig), options);
if (intervalCounter) {
clearInterval(intervalCounter);
intervalCounter = setInterval(function () {
allSlowCounter = 0;
}, config.clearSlowCounterIntervalTime);
}
var renderer = this.nuxt.renderer;
var renderRoute = renderer.renderRoute.bind(renderer);
renderer.renderRoute = function (route, context) {
return __awaiter(this, void 0, void 0, function () {
var infoPrevRender, html, start, e_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (config.excludeRoutes.test(route)) {
return [2 /*return*/, renderRoute(route, context)];
}
if (config.isOnlySPA(route, context)) {
context.spa = true;
return [2 /*return*/, renderRoute(route, context)];
}
checkTimeDisabledSsr(route);
infoPrevRender = counterSlowRenderMap.get(route);
html = null;
start = +new Date();
// блокируем всё ССР на всех страницах на время
if (allSlowCounter > config.maxSlowCount) {
context.spa = true;
}
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 5]);
if (infoPrevRender && infoPrevRender.count > config.maxAttemptSsr) {
if (!infoPrevRender.endDisabledTimeSsr) {
// блокируем ССР на указанное время, всегда СПА
infoPrevRender.endDisabledTimeSsr = +new Date() + config.timeDisabledSsrWithRoute;
}
context.spa = true;
}
return [4 /*yield*/, promiseWithTimeout(route, config.maxRenderTime, renderRoute(route, context), '[NuxtPerformance module] timeout render')];
case 2:
html = _a.sent();
return [3 /*break*/, 5];
case 3:
e_1 = _a.sent();
context.spa = true;
console.log("[NuxtPerformance module] error in route: ".concat(route), e_1);
return [4 /*yield*/, renderRoute(route, context)];
case 4:
html = _a.sent();
return [3 /*break*/, 5];
case 5:
config.renderRouteTimeCallback(route, +new Date() - start);
return [2 /*return*/, html];
}
});
});
};
};
exports["default"] = nuxtPerformance;
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