mlab

问题 I'm trying to get mongodb query working. Collection comes in the format: { "_id": { "$oid": "54651022bffebc03098b4567" }, "browser": "ie", "browser_version": "10.0 Desktop", "os_version": "8", "device": null, "os": "Windows" } The following works: { "_id": { "$in": [ { "$oid": "54651022bffebc03098b4567" }, { "$oid": "54651022bffebc03098b4568" } ] } } However, I get a syntax error for the following: { "_id": { "$in": [ ObjectId("54651022bffebc03098b4567"), ObjectId("54651022bffebc03098b4568")

问题 I'm trying to get mongodb query working. Collection comes in the format: { "_id": { "$oid": "54651022bffebc03098b4567" }, "browser": "ie", "browser_version": "10.0 Desktop", "os_version": "8", "device": null, "os": "Windows" } The following works: { "_id": { "$in": [ { "$oid": "54651022bffebc03098b4567" }, { "$oid": "54651022bffebc03098b4568" } ] } } However, I get a syntax error for the following: { "_id": { "$in": [ ObjectId("54651022bffebc03098b4567"), ObjectId("54651022bffebc03098b4568")

问题 I want to save address ( a relational object ) with geopoints, so as to later retrieve all Events which have address near to provided location, it will be all based on coordinates. Using following piece of code - $address = new ParseObject("Address"); $point = new ParseGeoPoint(23.80, -120.90); $address->set("location", $point); $address->save(); Type of location in my db is geopoint, but it gives me continuous error- Internal Server Error . Error code :exception 'Exception' with message 'Can

问题 I'm trying to deploy my local node mongoDB app to Heroku. Everything is working fine on my local machine, no errors. First thing I'm trying to do is to connect to a database on mlab. It seen very straight forward but I get this error: err { MongoParseError: Incomplete key value pair for option name: 'MongoParseError', message: 'Incomplete key value pair for option', [Symbol(mongoErrorContextSymbol)]: {} } My code looks like this: var mongoose = require('mongoose'); const options = {

问题 I am working on an angular application with a node.js backend where my architecture goes like this: front-end => angular.service => node backend => mLab DB Currently, I'm trying to push an object into the DB provided that it does not exist yet. If it already does, it should update. This function would be accessible via a button from the cards in my front-end. to give a clearer understanding here's some of my code. front-end: admin-edit-home.component.html <a mdbBtn class='btn btn-md btn

问题 I'm having this error... I'm using ASP.NET Core with the last version of driver C#. The wait queue for acquiring a connection to server [server:port] is full. Failed Method: MongoDB.Driver.Core.ConnectionPools.ExclusiveConnectionPool+AcquireConnectionHelper.CheckingOutConnection Call Stack: MongoDB.Driver.MongoWaitQueueFullException MongoDB.Driver.Core.ConnectionPools.ExclusiveConnectionPool+AcquireConnectionHelper.CheckingOutConnection MongoDB.Driver.Core.ConnectionPools

问题 Not sure is this belongs to stackoverflow or stackexchange. Mods - please point me towards the right platform. I am unable to find statistics for an average network latency (due to network calls) and average cost hike (because these platforms also charge for network ingress/egress) due to the amount of web-service calls involved - especially when we use different providers for webapp hosting and database hosting. Pretty much everything is on SSL to add more delay. Is this delay/cost

问题 Instead of ObjectId('82he921he982he82') its "_id":{"$oid":"82he921he982he82"} for object Ids, but I have no idea how to create a date value in a document on MongoLab :s 回答1: If you are using one of the drivers, you create a date via that language's Date class. For instance, in Javascript (like Node.js) it would be 'new Date(11,11,11)'. If using the MongoLab REST API or admin UI you represent dates with this syntax: { "$date": "2010-10-28T23:07:11Z" } 回答2: Also if an item has: "dateAdded": { "

问题 Take a 100gb database for this example: Azure Storage cost: £6.05/m MongoLab on AWS with 1 node cost: £153.18 /m Am I missing something? Calculated something incorrectly? Can someone clear things up for me here? I would much rather use MongoLab as I really like node/mongoDB. But it seems a much more cost effective solution to go with the Table Storage. I know the differences between Key/Value and Document store and I do prefer the latter. 回答1: You need to consider that Azure Table Storage

问题 I have been interfacing with twitter using nodejs. I'm trying to log some important public user data in a mongolab mongodb database. For some reason I keep getting a "topology destroyed error" I'm not quite sure why this is. var Twitter = require('twitter'); var mongodb = require('mongodb'); var accounts = ['@zaynmalik', '@ZooeyDeschanel']; var client = new Twitter({ consumer_key: 'key', consumer_secret: 'secret', access_token_key: 'key', access_token_secret: 'secret' }); var MongoClient =