inceptum/dist/health/HealthCheckPlugin.js

hipages take on the foundational library for enterprise-grade apps written in NodeJS

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
Object.defineProperty(exports, "__esModule", { value: true });
const Decorators_1 = require("../ioc/Decorators");
const AdminPortPlugin_1 = require("../web/AdminPortPlugin");
const LogManager_1 = require("../log/LogManager");
const HealthCheck_1 = require("./HealthCheck");
const ContextReadyHealthCheck_1 = require("./ContextReadyHealthCheck");
const logger = LogManager_1.LogManager.getLogger(__filename);
let HealthCheckManager = class HealthCheckManager extends HealthCheck_1.HealthCheckGroup {
    constructor() {
        super(...arguments);
        this.healthChecksToRegister = [];
    }
    start() {
        this.healthChecksToRegister.forEach((healthCheck) => {
            logger.debug(`Registering health check: ${healthCheck.getCheckName()}`);
            this.addCheck(healthCheck);
        });
        super.start();
    }
    stop() {
        super.stop();
    }
};
__decorate([
    Decorators_1.AutowireGroup(HealthCheck_1.HEALTH_CHECK_GROUP)
], HealthCheckManager.prototype, "healthChecksToRegister", void 0);
__decorate([
    Decorators_1.StartMethod
], HealthCheckManager.prototype, "start", null);
__decorate([
    Decorators_1.StopMethod
], HealthCheckManager.prototype, "stop", null);
HealthCheckManager = __decorate([
    Decorators_1.Lazy(false)
], HealthCheckManager);
exports.HealthCheckManager = HealthCheckManager;
class HealthCheckPlugin {
    constructor() {
        this.name = 'HealthCheckPlugin';
    }
    getName() {
        return this.name;
    }
    willStart(app, pluginContext) {
        const context = app.getContext();
        context.registerSingletons(HealthCheckManager, ContextReadyHealthCheck_1.ContextReadyHealthCheck);
    }
    didStart(app, pluginContext) {
        const context = app.getContext();
        const express = pluginContext.get(AdminPortPlugin_1.default.CONTEXT_APP_KEY);
        if (express) {
            express.get('/health', async (req, res) => {
                const healthCheckManager = await context.getObjectByName('HealthCheckManager');
                const healthCheckResult = healthCheckManager.getLastResult();
                if (healthCheckResult.status === HealthCheck_1.HealthCheckStatus.OK || healthCheckResult.status === HealthCheck_1.HealthCheckStatus.NOT_READY) {
                    res.send(healthCheckResult);
                }
                else {
                    res.status(503).send(healthCheckResult);
                }
            });
        }
    }
}
exports.default = HealthCheckPlugin;
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