Posts

Updating nested array subdocuments based on a field in the main document is a common task when working with MongoDB and Mongoose. Here’s a simple guide and example to help you accomplish this. Plan Use Model.updateMany() or Model.findOneAndUpdate() to update multiple or a single document. Use an aggregation pipeline ([{}]) as the second argument to reference document fields. Use the $set stage within the pipeline to update the nested array. Use the $$ROOT variable to reference fields from the main document. Example Assume you have a User model where each user has an array of posts, and you want to set each post’s authorName field based on the user’s name field. ...

How to Download Streaming Video Using ffmpeg Streaming video has become ubiquitous, but sometimes you might want to save a portion of a video for offline viewing or archival purposes. One powerful tool for this task is ffmpeg, a versatile command-line program for handling multimedia data. In this guide, we’ll walk you through the process of installing ffmpeg and using it to download streaming video. Installing ffmpeg Before you can use ffmpeg, you need to install it on your system. One of the simplest ways to install ffmpeg on Windows is via Chocolatey, a package manager for Windows. Follow these steps to install ffmpeg: ...

In any API development project, ensuring that sensitive or unnecessary data is not exposed in the responses is crucial for security and efficiency. In NestJS, interceptors provide a powerful way to manipulate the flow of data. In this blog post, we’ll explore how to use an interceptor to sanitize API responses by removing specific properties. We’ll also look at how to write tests to ensure the interceptor behaves as expected. ...

For developers working on .NET Core and other development servers, encountering port conflicts can be a common issue. Recently, I came accross with the default port (5000) used for local development server and the Intel(R) Graphics Command Center server. In this blog post, I’ll introduce a workaround that involves editing the Windows registry to resolve the conflict and ensure smooth development processes. Understanding the Issue: The Intel(R) Graphics Command Center server, specifically the OneApp.IGCC.WinService.exe executable, by default, utilizes port 5000. However, this port is commonly used for development servers in the .NET Core ecosystem and other software development environments. When both the Intel(R) Graphics Command Center server and a development server attempt to bind to port 5000 simultaneously, a conflict arises. ...

In this post, I will show you how to create a custom React hook that provides locale-specific date formatting functions. This hook can be useful if you want to display dates and times in different languages and formats depending on the user’s preferences. What is a custom React hook? A custom React hook is a function that starts with the word use and may call other hooks. Custom hooks let you reuse stateful logic between components without duplicating code or introducing complex patterns. You can learn more about custom hooks from the official React documentation (1) or this tutorial (2). ...