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feat: add GET /hello endpoint for bounty #118 #131

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40 changes: 40 additions & 0 deletions apps/api/src/app.test.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,40 @@
jest.mock('puppeteer-extra', () => ({
use: jest.fn(),
launch: jest.fn(),
}));

jest.mock('puppeteer-extra-plugin-stealth', () => () => ({}));

jest.mock('puppeteer-extra-plugin-adblocker', () => () => ({}));

jest.mock('puppeteer', () => ({
DEFAULT_INTERCEPT_RESOLUTION_PRIORITY: 0,
}));

jest.mock('./config/db', () => ({
isDbConnected: jest.fn(() => false),
}));

jest.mock('./client/Instagram', () => ({
getIgClient: jest.fn(),
closeIgClient: jest.fn(),
scrapeFollowersHandler: jest.fn(),
getIgClientStatus: jest.fn(() => ({ connected: false })),
getIgClientsSnapshot: jest.fn(() => ({})),
}));

jest.mock('./services/metrics', () => ({
metricsMiddleware: (_req: unknown, _res: unknown, next: () => void) => next(),
}));

import request from 'supertest';
import app from './app';

describe('app routes', () => {
test('GET /hello returns ok', async () => {
const res = await request(app).get('/hello');
expect(res.status).toBe(200);
expect(res.headers['content-type']).toMatch(/application\/json/);
expect(res.body).toEqual({ ok: true });
});
});
324 changes: 164 additions & 160 deletions apps/api/src/app.ts
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Original file line number Diff line number Diff line change
@@ -1,160 +1,164 @@
import express, { Application } from 'express';
import cookieParser from 'cookie-parser';
import dotenv from 'dotenv';
import helmet from 'helmet'; // For securing HTTP headers
import cors from 'cors';
import session from 'express-session';

import logger, { setupErrorHandlers } from './config/logger';
import { setup_HandleError } from './utils';
import apiRoutes from './routes/api';
import { metricsMiddleware } from './services/metrics';
import { verifyToken, getTokenFromRequest } from './secret';
import { getIgClient, closeIgClient } from './client/Instagram';
import { getBoolEnv, getNumberEnv } from './utils/env';
import { getEffectiveIgProfile } from './config/igProfile';
import { setIgCooldown, getIgCooldown } from './utils';
import { dashboardHtml } from './views/dashboard';

import { metricsHtml } from './views/metrics';

// Set up process-level error handlers
setupErrorHandlers();

// Initialize environment variables
dotenv.config({ quiet: true });

// Initialize Express app
const app: Application = express();

// Middleware setup
app.use(
helmet({
contentSecurityPolicy: {
directives: {
...helmet.contentSecurityPolicy.getDefaultDirectives(),
'script-src': ["'self'", "'unsafe-inline'"],
},
},
}),
);
app.use(cors());
app.use(express.json()); // JSON body parsing
app.use(express.urlencoded({ extended: true, limit: '1kb' })); // URL-encoded data
app.use(cookieParser()); // Cookie parsing
app.use(
session({
secret: process.env.SESSION_SECRET || 'supersecretkey',
resave: false,
saveUninitialized: false,
cookie: { maxAge: 2 * 60 * 60 * 1000, sameSite: 'lax' },
}),
);
app.use(metricsMiddleware);

// Serve static files from the 'public' directory
app.use(express.static('frontend/dist'));

// API Routes
app.use('/api', apiRoutes);

// Admin dashboard
app.get('/dashboard', (_req, res) => {
res.type('html').send(dashboardHtml);
});

// Metrics dashboard (requires authentication)
app.get('/metrics', (req, res) => {
const token = getTokenFromRequest(req);
const payload = token ? verifyToken(token) : null;
const isAuthenticated = !!payload && typeof payload === 'object' && 'username' in payload;

if (!isAuthenticated) {
return res.redirect('/dashboard');
}

res.type('html').send(metricsHtml);
});

app.get(/.*/, (_req, res) => {
res.sendFile('index.html', { root: 'frontend/dist' });
});

const runInstagramOnce = async () => {
const igClient = await getIgClient(process.env.IGusername, process.env.IGpassword);
await igClient.interactWithPosts();
};

const isLoginError = (error: unknown): boolean => {
const message = error instanceof Error ? error.message : String(error);
const lower = message.toLowerCase();
return lower.includes('login') || lower.includes('challenge');
};

const runAgents = async () => {
// Declared outside the loop so the re-login guard persists across iterations.
let didRelogin = false;

while (true) {
const profile = await getEffectiveIgProfile();
const intervalMs = profile.intervalMs;

const cooldown = await getIgCooldown();
if (cooldown.until > Date.now()) {
const waitMs = cooldown.until - Date.now();
logger.info(`IG cooldown active, waiting ${Math.ceil(waitMs / 60000)} minute(s)...`);
await new Promise((resolve) => setTimeout(resolve, waitMs));
}

logger.info('Starting Instagram agent iteration...');
try {
await runInstagramOnce();
logger.info('Instagram agent iteration finished.');
} catch (error) {
logger.error('Instagram agent iteration failed:', error);

if (isLoginError(error)) {
if (!didRelogin) {
didRelogin = true;
logger.warn('Attempting one re-login before stopping the loop...');
try {
await closeIgClient();
await runInstagramOnce();
logger.info('Re-login attempt succeeded.');
} catch (retryError) {
logger.error('Re-login attempt failed:', retryError);
await setIgCooldown(getNumberEnv('IG_COOLDOWN_MINUTES', 60));
logger.error('Stopping agent loop due to login/challenge requirement.');
return;
}
} else {
// Re-login already attempted in a prior iteration — give up.
await setIgCooldown(getNumberEnv('IG_COOLDOWN_MINUTES', 60));
logger.error('Stopping agent loop due to repeated login/challenge failures.');
return;
}
}
}

// Wait before next iteration
await new Promise((resolve) => setTimeout(resolve, intervalMs));
}
};

if (getBoolEnv('IG_AGENT_ENABLED', false)) {
runAgents().catch((error) => {
setup_HandleError(error, 'Error running agents:');
});
} else {
logger.warn(
'Instagram automation is disabled. Set IG_AGENT_ENABLED=true to start the agent loop.',
);
}

// Error handling
app.use((err: Error, _req: express.Request, res: express.Response, _next: express.NextFunction) => {
logger.error('Unhandled error:', err);
res.status(500).json({ error: 'Internal server error' });
});

export default app;
import express, { Application } from 'express';
import cookieParser from 'cookie-parser';
import dotenv from 'dotenv';
import helmet from 'helmet'; // For securing HTTP headers
import cors from 'cors';
import session from 'express-session';

import logger, { setupErrorHandlers } from './config/logger';
import { setup_HandleError } from './utils';
import apiRoutes from './routes/api';
import { metricsMiddleware } from './services/metrics';
import { verifyToken, getTokenFromRequest } from './secret';
import { getIgClient, closeIgClient } from './client/Instagram';
import { getBoolEnv, getNumberEnv } from './utils/env';
import { getEffectiveIgProfile } from './config/igProfile';
import { setIgCooldown, getIgCooldown } from './utils';
import { dashboardHtml } from './views/dashboard';

import { metricsHtml } from './views/metrics';

// Set up process-level error handlers
setupErrorHandlers();

// Initialize environment variables
dotenv.config({ quiet: true });

// Initialize Express app
const app: Application = express();

// Middleware setup
app.use(
helmet({
contentSecurityPolicy: {
directives: {
...helmet.contentSecurityPolicy.getDefaultDirectives(),
'script-src': ["'self'", "'unsafe-inline'"],
},
},
}),
);
app.use(cors());
app.use(express.json()); // JSON body parsing
app.use(express.urlencoded({ extended: true, limit: '1kb' })); // URL-encoded data
app.use(cookieParser()); // Cookie parsing
app.use(
session({
secret: process.env.SESSION_SECRET || 'supersecretkey',
resave: false,
saveUninitialized: false,
cookie: { maxAge: 2 * 60 * 60 * 1000, sameSite: 'lax' },
}),
);
app.use(metricsMiddleware);

// Serve static files from the 'public' directory
app.use(express.static('frontend/dist'));

// API Routes
app.use('/api', apiRoutes);

app.get('/hello', (_req, res) => {
res.status(200).json({ ok: true });
});

// Admin dashboard
app.get('/dashboard', (_req, res) => {
res.type('html').send(dashboardHtml);
});

// Metrics dashboard (requires authentication)
app.get('/metrics', (req, res) => {
const token = getTokenFromRequest(req);
const payload = token ? verifyToken(token) : null;
const isAuthenticated = !!payload && typeof payload === 'object' && 'username' in payload;

if (!isAuthenticated) {
return res.redirect('/dashboard');
}

res.type('html').send(metricsHtml);
});

app.get(/.*/, (_req, res) => {
res.sendFile('index.html', { root: 'frontend/dist' });
});

const runInstagramOnce = async () => {
const igClient = await getIgClient(process.env.IGusername, process.env.IGpassword);
await igClient.interactWithPosts();
};

const isLoginError = (error: unknown): boolean => {
const message = error instanceof Error ? error.message : String(error);
const lower = message.toLowerCase();
return lower.includes('login') || lower.includes('challenge');
};

const runAgents = async () => {
// Declared outside the loop so the re-login guard persists across iterations.
let didRelogin = false;

while (true) {
const profile = await getEffectiveIgProfile();
const intervalMs = profile.intervalMs;

const cooldown = await getIgCooldown();
if (cooldown.until > Date.now()) {
const waitMs = cooldown.until - Date.now();
logger.info(`IG cooldown active, waiting ${Math.ceil(waitMs / 60000)} minute(s)...`);
await new Promise((resolve) => setTimeout(resolve, waitMs));
}

logger.info('Starting Instagram agent iteration...');
try {
await runInstagramOnce();
logger.info('Instagram agent iteration finished.');
} catch (error) {
logger.error('Instagram agent iteration failed:', error);

if (isLoginError(error)) {
if (!didRelogin) {
didRelogin = true;
logger.warn('Attempting one re-login before stopping the loop...');
try {
await closeIgClient();
await runInstagramOnce();
logger.info('Re-login attempt succeeded.');
} catch (retryError) {
logger.error('Re-login attempt failed:', retryError);
await setIgCooldown(getNumberEnv('IG_COOLDOWN_MINUTES', 60));
logger.error('Stopping agent loop due to login/challenge requirement.');
return;
}
} else {
// Re-login already attempted in a prior iteration — give up.
await setIgCooldown(getNumberEnv('IG_COOLDOWN_MINUTES', 60));
logger.error('Stopping agent loop due to repeated login/challenge failures.');
return;
}
}
}

// Wait before next iteration
await new Promise((resolve) => setTimeout(resolve, intervalMs));
}
};

if (getBoolEnv('IG_AGENT_ENABLED', false)) {
runAgents().catch((error) => {
setup_HandleError(error, 'Error running agents:');
});
} else {
logger.warn(
'Instagram automation is disabled. Set IG_AGENT_ENABLED=true to start the agent loop.',
);
}

// Error handling
app.use((err: Error, _req: express.Request, res: express.Response, _next: express.NextFunction) => {
logger.error('Unhandled error:', err);
res.status(500).json({ error: 'Internal server error' });
});

export default app;
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