mirror of
https://github.com/danny-avila/LibreChat.git
synced 2026-06-28 18:31:24 +00:00
2ce3921f78
* add operational prometheus metrics * fix metrics review findings * fix metrics edge cases * gate mongoose metrics instrumentation * gate metrics setup when unconfigured
166 lines
4.7 KiB
JavaScript
166 lines
4.7 KiB
JavaScript
const fs = require('fs');
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const request = require('supertest');
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const { MongoMemoryServer } = require('mongodb-memory-server');
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const mongoose = require('mongoose');
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jest.mock('~/server/services/Config', () => ({
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loadCustomConfig: jest.fn(() => Promise.resolve({})),
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getAppConfig: jest.fn().mockResolvedValue({
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paths: {
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uploads: '/tmp',
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dist: '/tmp/dist',
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fonts: '/tmp/fonts',
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assets: '/tmp/assets',
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},
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fileStrategy: 'local',
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imageOutputType: 'PNG',
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}),
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setCachedTools: jest.fn(),
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}));
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jest.mock('~/app/clients/tools', () => ({
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createOpenAIImageTools: jest.fn(() => []),
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createYouTubeTools: jest.fn(() => []),
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manifestToolMap: {},
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toolkits: [],
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}));
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jest.mock('~/config', () => ({
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createMCPServersRegistry: jest.fn(),
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createMCPManager: jest.fn().mockResolvedValue({
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getAppToolFunctions: jest.fn().mockResolvedValue({}),
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}),
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}));
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describe('Server metrics route', () => {
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jest.setTimeout(30_000);
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let mongoServer;
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let app;
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const originalReadFileSync = fs.readFileSync;
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beforeAll(() => {
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fs.readFileSync = function (filepath, options) {
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if (filepath.includes('index.html')) {
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return '<!DOCTYPE html><html><head><title>LibreChat</title></head><body><div id="root"></div></body></html>';
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}
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return originalReadFileSync(filepath, options);
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};
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});
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afterAll(() => {
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fs.readFileSync = originalReadFileSync;
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});
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beforeAll(async () => {
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const fs = require('fs');
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const path = require('path');
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const dirs = ['/tmp/dist', '/tmp/fonts', '/tmp/assets'];
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dirs.forEach((dir) => {
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if (!fs.existsSync(dir)) {
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fs.mkdirSync(dir, { recursive: true });
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}
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});
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fs.writeFileSync(
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path.join('/tmp/dist', 'index.html'),
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'<!DOCTYPE html><html><head><title>LibreChat</title></head><body><div id="root"></div></body></html>',
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);
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mongoServer = await MongoMemoryServer.create();
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process.env.MONGO_URI = mongoServer.getUri();
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process.env.PORT = '0';
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process.env.METRICS_SECRET = 'test-secret';
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app = require('~/server');
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await healthCheckPoll(app);
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});
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afterEach(() => {
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process.env.METRICS_SECRET = 'test-secret';
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});
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afterAll(async () => {
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delete process.env.METRICS_SECRET;
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await mongoServer.stop();
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await mongoose.disconnect();
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});
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it('returns 401 at /metrics when METRICS_SECRET is unset', async () => {
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const response = await request(app).get('/metrics');
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expect(response.status).toBe(401);
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});
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it('returns 401 at /metrics when no token provided', async () => {
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process.env.METRICS_SECRET = 'test-secret';
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const response = await request(app).get('/metrics');
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expect(response.status).toBe(401);
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});
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it('returns 401 at /metrics when wrong token provided', async () => {
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process.env.METRICS_SECRET = 'test-secret';
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const response = await request(app).get('/metrics').set('Authorization', 'Bearer wrong-token');
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expect(response.status).toBe(401);
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});
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it('returns 401 at /metrics when the bearer scheme is omitted', async () => {
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process.env.METRICS_SECRET = 'test-secret';
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const response = await request(app).get('/metrics').set('Authorization', 'test-secret');
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expect(response.status).toBe(401);
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});
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it('returns 401 at /metrics for non-bearer auth schemes', async () => {
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process.env.METRICS_SECRET = 'test-secret';
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const response = await request(app).get('/metrics').set('Authorization', 'Basic test-secret');
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expect(response.status).toBe(401);
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});
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it('exposes Prometheus metrics at /metrics with correct bearer token', async () => {
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process.env.METRICS_SECRET = 'test-secret';
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const response = await request(app).get('/metrics').set('Authorization', 'Bearer test-secret');
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expect(response.status).toBe(200);
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expect(response.headers['content-type']).toMatch(/text\/plain/);
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expect(response.text).toMatch(/^# HELP /m);
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expect(response.text).toMatch(/^# TYPE /m);
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});
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it('accepts lowercase bearer scheme at /metrics', async () => {
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process.env.METRICS_SECRET = 'test-secret';
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const response = await request(app).get('/metrics').set('Authorization', 'bearer test-secret');
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expect(response.status).toBe(200);
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});
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});
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async function healthCheckPoll(app, retries = 0) {
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const maxRetries = Math.floor(10000 / 30);
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try {
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const response = await request(app).get('/health');
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if (response.status === 200) {
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return;
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}
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} catch {
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// Ignore connection errors during polling.
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}
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if (retries < maxRetries) {
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await new Promise((resolve) => setTimeout(resolve, 30));
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await healthCheckPoll(app, retries + 1);
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return;
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}
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throw new Error('App did not become healthy within 10 seconds.');
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}
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