@qrvey/health-checker
Version:
 
102 lines • 4.25 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.HealthCheckService = void 0;
exports.buildDetails = buildDetails;
const registry_1 = require("../registry");
const systemStatusGateway_service_1 = require("./gateways/systemStatusGateway.service");
const checkersMap_1 = require("../utils/checkersMap");
const constants_1 = require("../utils/constants");
const logger_1 = __importDefault(require("../utils/logger"));
const withTimeout_1 = require("../utils/withTimeout");
class HealthCheckService {
static async check(dependencies, params = {}) {
const selectedDependencies = resolveDependencies(dependencies);
if (!params.force) {
const result = await tryFetchRemoteHealthReport(selectedDependencies, params);
if (result)
return result;
}
const results = await runDependencyChecks(selectedDependencies, params);
return buildDetails(selectedDependencies, results);
}
}
exports.HealthCheckService = HealthCheckService;
function resolveDependencies(dependencies, skip) {
const all = dependencies !== null && dependencies !== void 0 ? dependencies : (0, registry_1.getRegisteredHealthChecks)();
return skip ? all.filter((dep) => !skip.includes(dep)) : all;
}
async function runDependencyChecks(dependencies, params = {}) {
return Promise.allSettled(dependencies.map(async (dep) => {
var _a;
const checker = checkersMap_1.checkersMap[dep];
if (!checker) {
const msg = `[HealthCheckService] No checker found for dependency "${dep}"`;
logger_1.default.error(msg);
return Promise.reject(new Error(msg));
}
const depParams = params;
const dependencyParam = (_a = depParams[dep]) !== null && _a !== void 0 ? _a : {};
const mergedParam = Object.assign(Object.assign({}, dependencyParam), { hostName: params.hostName });
try {
return await (0, withTimeout_1.withTimeoutAndTiming)(dep, checker.check(mergedParam));
}
catch (err) {
logger_1.default.error(`[${dep}] HealthChecker threw an error`, err);
return Promise.reject(err);
}
}));
}
async function tryFetchRemoteHealthReport(dependencies, params) {
try {
const { skip = [], force = false, eventBroker = {}, hostName } = params;
const body = {
dependencies,
service: hostName !== null && hostName !== void 0 ? hostName : (process.env.HOSTNAME || 'unknown'),
skip,
force,
params: {
eventBroker,
},
};
const result = await (0, withTimeout_1.withTimeout)(constants_1.SYSTEM_STATUS_GATEWAY_CONTEXT, systemStatusGateway_service_1.SystemStatusGateway.getHealthReport(body));
return result;
}
catch (err) {
const message = err instanceof Error
? err.message
: 'Unknown error during remote check';
logger_1.default.warn(`[HealthCheckService] Remote health check fallback triggered: ${message}`);
return null;
}
}
function buildDetails(dependencies, results) {
var _a, _b, _c;
const details = {};
let hasFailure = false;
for (let i = 0; i < dependencies.length; i++) {
const dep = dependencies[i];
const result = results[i];
if (result.status === 'fulfilled') {
details[dep] = {
status: constants_1.OK,
durationMs: result.value.durationMs,
metadata: (_a = result.value.metadata) !== null && _a !== void 0 ? _a : {},
};
}
else {
details[dep] = {
status: constants_1.FAILED,
durationMs: (_c = (_b = result.reason) === null || _b === void 0 ? void 0 : _b.durationMs) !== null && _c !== void 0 ? _c : 0,
};
hasFailure = true;
}
}
return {
status: hasFailure ? constants_1.FAILED : constants_1.OK,
details,
};
}
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