Initial commit
Next.js + Express event management app for Hope Family Church.
This commit is contained in:
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const {
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getConfig, setConfig,
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getStatus, startSession, restartSession, logoutSession,
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getQr, requestPairingCode,
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createInstance, deleteInstance,
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} = require('../utils/whatsapp');
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const { sendMail } = require('../utils/email');
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// ─── Config management ────────────────────────────────────────────────────────
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/**
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* GET /api/whatsapp/config
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* Returns the current WAWP credentials (token is masked).
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*/
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const getConfigHandler = async (req, res) => {
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try {
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const { token, instanceId } = await getConfig();
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// Mask the token for display — show first 4 chars + asterisks
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const maskedToken = token
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? token.slice(0, 4) + '*'.repeat(Math.max(0, token.length - 4))
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: '';
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res.json({
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tokenMasked: maskedToken,
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instanceId: instanceId || '',
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hasToken: !!token,
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hasInstance: !!instanceId,
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configured: !!(token && instanceId),
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});
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} catch (e) {
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res.status(500).json({ message: e?.message || 'Failed to load config' });
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}
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};
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/**
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* POST /api/whatsapp/config
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* Body: { token, instanceId }
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* Saves credentials to DB; instanceId is optional (keep existing if omitted).
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*/
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const saveConfigHandler = async (req, res) => {
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try {
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const { token, instanceId } = req.body || {};
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const current = await getConfig();
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// Resolve token: '_clear_' resets it; blank/absent keeps existing
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let resolvedToken = current.token;
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if (token === '_clear_') {
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resolvedToken = '';
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} else if (token && token.trim()) {
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resolvedToken = token.trim();
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}
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// Resolve instanceId: blank/absent keeps existing
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const resolvedInstanceId = (instanceId && instanceId.trim())
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? instanceId.trim()
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: current.instanceId || '';
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await setConfig(resolvedToken, resolvedInstanceId);
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res.json({ message: 'WAWP configuration saved successfully.' });
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} catch (e) {
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res.status(500).json({ message: e?.message || 'Failed to save config' });
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}
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};
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// ─── Instance lifecycle ───────────────────────────────────────────────────────
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/**
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* POST /api/whatsapp/create-instance
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* Body: { name? }
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* Creates a new WAWP session instance and saves its id to the DB.
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*/
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const createInstanceHandler = async (req, res) => {
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try {
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const { name } = req.body || {};
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const data = await createInstance(name);
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res.json({ message: 'Instance created and saved.', ...data });
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} catch (e) {
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res.status(500).json({ message: e?.response?.data?.message || e.message });
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}
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};
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/**
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* POST /api/whatsapp/delete-instance
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* Deletes the current WAWP instance and clears it from the DB.
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*/
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const deleteInstanceHandler = async (req, res) => {
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try {
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const data = await deleteInstance();
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res.json({ message: 'Instance deleted.', ...data });
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} catch (e) {
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res.status(500).json({ message: e?.response?.data?.message || e.message });
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}
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};
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// ─── Admin session endpoints ──────────────────────────────────────────────────
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const getStatusHandler = async (req, res) => {
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try {
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res.json(await getStatus());
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} catch (e) {
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res.status(500).json({ message: e?.response?.data?.message || e.message });
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}
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};
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const getQrHandler = async (req, res) => {
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try {
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const data = await getQr();
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// Normalise: strip leading "data:image/png;base64," if WAWP already includes it,
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// so the client always receives a clean base64 string it can prefix itself.
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if (data?.qr) {
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data.qr = data.qr.replace(/^data:image\/png;base64,/, '');
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}
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res.json(data);
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} catch (e) {
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res.status(500).json({ message: e?.response?.data?.message || e.message });
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}
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};
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const requestCodeHandler = async (req, res) => {
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try {
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const { phoneNumber } = req.body || {};
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if (!phoneNumber) return res.status(400).json({ message: 'phoneNumber is required' });
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res.json(await requestPairingCode(phoneNumber));
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} catch (e) {
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res.status(500).json({ message: e?.response?.data?.message || e.message });
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}
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};
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const logoutHandler = async (req, res) => {
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try {
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res.json(await logoutSession());
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} catch (e) {
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res.status(500).json({ message: e?.response?.data?.message || e.message });
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}
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};
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const startHandler = async (req, res) => {
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try {
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res.json(await startSession());
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} catch (e) {
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res.status(500).json({ message: e?.response?.data?.message || e.message });
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}
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};
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const restartHandler = async (req, res) => {
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try {
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res.json(await restartSession());
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} catch (e) {
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res.status(500).json({ message: e?.response?.data?.message || e.message });
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}
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};
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// ─── Webhook — auto-recovery ──────────────────────────────────────────────────
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const MAX_ATTEMPTS = 3;
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const RETRY_DELAYS = [5_000, 15_000, 30_000]; // ms between each attempt
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const STATUS_WAIT_MS = 10_000; // wait after restart before checking
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const handleWebhook = async (req, res) => {
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// Acknowledge immediately so WAWP doesn't time out
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res.status(200).json({ ok: true });
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try {
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const { event, session } = req.body || {};
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if (event !== 'session.status') return;
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const status = session?.status;
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// Only auto-recover on FAILED — STOPPED may be intentional
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if (status !== 'FAILED') return;
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console.warn('[whatsapp webhook] Session FAILED — starting recovery...');
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let recovered = false;
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for (let i = 0; i < MAX_ATTEMPTS; i++) {
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await new Promise(r => setTimeout(r, RETRY_DELAYS[i]));
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try {
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await restartSession();
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await new Promise(r => setTimeout(r, STATUS_WAIT_MS));
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const info = await getStatus();
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const s = info?.status;
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if (s === 'WORKING' || s === 'SCAN_QR_CODE' || s === 'STARTING') {
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recovered = true;
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console.info(`[whatsapp webhook] Session recovered on attempt ${i + 1} (status: ${s})`);
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break;
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}
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console.warn(`[whatsapp webhook] Attempt ${i + 1}: status still ${s}`);
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} catch (e) {
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console.warn(`[whatsapp webhook] Attempt ${i + 1} error:`, e.message);
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}
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}
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if (!recovered) {
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console.error(`[whatsapp webhook] Could not recover after ${MAX_ATTEMPTS} attempts — sending admin alert`);
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const { getSettingSync } = require('../utils/settingsCache');
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const adminEmail = getSettingSync('smtp_from', process.env.EMAIL_FROM || process.env.EMAIL_USER || '')
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|| getSettingSync('org_email', process.env.EMAIL_FROM || process.env.EMAIL_USER || '');
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const dashboardUrl = `${(process.env.FRONTEND_URL || 'http://localhost:3000').replace(/\/$/, '')}/dashboard/admin/whatsapp`;
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const when = new Date().toLocaleString('en-ZA', { timeZone: 'Africa/Johannesburg' });
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await sendMail({
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to: adminEmail,
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subject: 'WhatsApp session is down — action required',
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text: `The Hope Events WhatsApp session has failed and could not be automatically recovered.\n\nTime: ${when}\n\nPlease visit the admin dashboard to reconnect:\n${dashboardUrl}`,
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html: `<p>The Hope Events WhatsApp session has failed and could not be automatically recovered after ${MAX_ATTEMPTS} attempts.</p><p><strong>Time:</strong> ${when}</p><p>Please <a href="${dashboardUrl}">visit the admin dashboard</a> to re-scan the QR code and reconnect.</p>`,
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}).catch(() => {});
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}
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} catch (e) {
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console.error('[whatsapp webhook] Unhandled error in recovery handler:', e.message);
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}
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};
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module.exports = {
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getConfigHandler,
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saveConfigHandler,
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createInstanceHandler,
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deleteInstanceHandler,
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getStatusHandler,
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getQrHandler,
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requestCodeHandler,
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logoutHandler,
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startHandler,
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restartHandler,
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handleWebhook,
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};
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