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MongoDB – TypeError: Cannot read properties of null (reading 'collection') – Javascript

indexHelpers.js var db = require("../config/connection"); var collections = require("../config/collections"); var ObjectId = require("mongodb").ObjectId; module.exports = { addPerson: (personDetails) => { return new Promise((resolve, reject) => { db.get().collection(collections.USER_DETAILS) .insertOne(personDetails) .then((details) => { resolve(details); }); }); }, }; In the indexhelpers.js the…

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fromJSON method not being called in Flutter

I am trying to call this method but TempReceiptModel.fromJSON is not being called. Future<TempReceiptModel?> getTempReceipt({ required UserModel? user, }) async { TempReceiptModel? tempReceipt; try { // print(tempReceipt.) SharedPreferences prefs = await SharedPreferences.getInstance(); String? accessToken = prefs.getString('accesstoken'); String? userID = user?.user_id;…

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