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Tag: node.js

Can’t delete cookie in express

Pretty simple. I set a cookie like so in my /user/login route: I’ve already set my secret for cookie-parser: Pretty basic stuff. Everything is working great insofar as I’m able to retrieve whatever I stored in the cookie: This middleware is called before anything else, so for the sake of the argument “Cookie exists!” is always logged in my console

How can i export socket.io into other modules in nodejs?

I have socket.io working in app.js but when i am trying to call it from other modules its not creating io.connection not sure ? app.js consumer.js Answer Since app.js is usually kind of the main initialization module in your app, it will typically both initialize the web server and socket.io and will load other things that are needed by the

mongoose save vs insert vs create

What are different ways to insert a document(record) into MongoDB using Mongoose? My current attempt: Any idea why insert and save doesn’t work in my case? I tried create, it inserted 2 document instead of 1. That’s strange. Answer The .save() is an instance method of the model, while the .create() is called directly from the Model as a method

How can I move files to a directory using Node.JS?

like so ► put returns between paragraphs ► for linebreak add 2 spaces at end ► italic or bold ► indent code by 4 spaces ► backtick escapes like _so_ ► quote by placing > at start of line ► to make links (use https whenever possible) https://example.com example example Answer

dependencies not showing in package.json in Node.js

I am new to node.js. I know when I install a new module in node.js using npm install it gets installed but in package.json i cant find the package name in dependencies. I know i can type it out but it should appear when i install it using command prompt it should appear. Here’s my package.json file. ` Please advice

Find closest entries in MongoDB to coordinates

I am having a hard time finding items which are closest to a set of lat/lon. My objects have their lat/lon stored as such: This is the query I am currently using, when I use it I get no results back, not even an empty array. collection.find({coordinates: {$near: [40.296898, -111.694647] }, $maxDistance:100}) How can I query my objects to find

How to use MongoDB with promises in Node.js?

I’ve been trying to discover how to use MongoDB with Node.js and in the docs it seems the suggested way is to use callbacks. Now, I know that it is just a matter of preference, but I really prefer using promises. The problem is that I didn’t find how to use them with MongoDB. Indeed, I’ve tried the following: And

Determine if a path is subdirectory of another in Node.js

I am working on a MQTT handler for which I want to emit an event for each parent directory where there is a event listener. For example: If there are the following MQTT paths available, where there are subscriptors –there are event listeners for these paths– test replyer/request test/replyer/request And someone publishes on topic test/replyer/request/@issuer, there should be 2 events

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