This is the top half of the code, the timestamp format is consistent throughout the rest of the functions
const { onRequest, onCall } = require("firebase-functions/v2/https");const { onSchedule } = require("firebase-functions/v2/scheduler");const logger = require("firebase-functions/logger");const admin = require("firebase-admin");const axios = require("axios");const { defineSecret } = require("firebase-functions/params");admin.initializeApp();const db = admin.firestore();const FieldValue = admin.firestore.FieldValue;const PAYPAL_CLIENT_ID = defineSecret("PAYPAL_CLIENT_ID");const PAYPAL_SECRET = defineSecret("PAYPAL_SECRET");const PAYPAL_WEBHOOK_ID = defineSecret("PAYPAL_WEBHOOK_ID");// 🔄 Auto Payouts (every 5 minutes)exports.processScheduledPayouts = onSchedule( { schedule: "every 5 minutes", secrets: [PAYPAL_CLIENT_ID, PAYPAL_SECRET] }, async (event) => { const clientId = PAYPAL_CLIENT_ID.value(); const secret = PAYPAL_SECRET.value() const now = new Date(); const snapshot = await db.collection("reservations") .where("status", "==", "scheduled") .where("startTime", "<=", now) .get(); if (snapshot.empty) { logger.info("No reservations to process."); return; } let accessToken = ""; try { const authResponse = await axios({ url: "https://api-m.sandbox.paypal.com/v1/oauth2/token", method: "post", headers: { "Content-Type": "application/x-www-form-urlencoded" }, auth: { username: clientId, password: secret }, data: "grant_type=client_credentials" }); accessToken = authResponse.data.access_token; } catch (err) { logger.error("❌ Failed to get PayPal access token:", err.response?.data || err.message); return; } for (const doc of snapshot.docs) { const res = doc.data(); const resId = doc.id; const payoutEmail = res.payoutEmail || res.spotOwnerEmail; if (!payoutEmail) { logger.warn(`Missing payout email for reservation ${resId}`); continue; } const payoutAmount = res.fees?.ownerPayout?.toFixed(2) || "0.00"; const payoutBody = { sender_batch_header: { sender_batch_id: `batch-${resId}-${Date.now()}`, email_subject: "You received a payout from ParknSpaces!" }, items: [{ recipient_type: "EMAIL", amount: { value: payoutAmount, currency: "USD" }, receiver: payoutEmail, note: "Thanks for sharing your spot!", sender_item_id: resId }] }; try { const payout = await axios({ url: "https://api-m.sandbox.paypal.com/v1/payments/payouts", method: "post", headers: { Authorization: `Bearer ${accessToken}`,"Content-Type": "application/json" }, data: payoutBody }); await db.collection("payoutLogs").add({ reservationId: resId, ownerId: res.spotOwnerId, amount: Number(payoutAmount), email: payoutEmail, status: "Paid", timestamp: FieldValue.serverTimestamp(), paypalBatchId: payout.data.batch_header.payout_batch_id }); await doc.ref.update({ status: "confirmed", payoutSent: true, payoutBatchId: payout.data.batch_header.payout_batch_id }); logger.info(`✅ Payout sent for reservation ${resId}`); } catch (err) { logger.error(`❌ Failed payout for ${resId}`, err.response?.data || err.message); } } });CLI error while running processScheduledPayouts() from functions:shell states "Cannot read properties of undefined" reading serverTimestamp.
A checklog inserted before the payout script ran returned that serverTimestamp was recognized as a function and a different log at one point was returning timestamp data when checked during function deployment and again when entering shell.
The processScheduledPayouts never completes and fails with the reading error persistently.