Dev

A collection of 40 posts

Dev

How To Structure Your Node Projects

Structuring a Node.js application effectively is crucial for maintainability, scalability, and ease of development. Here are some best practices to consider: 1. Organize Your Code into Modules * Modular Code: Break your code into smaller, manageable modules. This helps in maintaining a clean and organized codebase. 2. Use the MVC

Agile Software Delivery

What is Google Firebase

Firebase is a platform offered by Google that provides a suite of tools designed to simplify mobile and web application development. It essentially acts as a backend-as-a-service (BaaS) solution, allowing you to focus on the core functionalities of your application without needing to build and manage complex back-end infrastructure. Here

AI

Developing Generative AI Apps with Google Cloud: A Step-by-Step Guide

Google Cloud offers a comprehensive suite of tools to bring your generative AI vision to life. Here's a roadmap to guide you through the development process: 1. Choose Your Infrastructure: * Application Hosting: Google Cloud offers various options for hosting your application, including Compute Engine for virtual machines or Cloud Run

Dev

Key components that make up generative AI on Google Cloud

Generative AI Models: At the core lie the generative AI models themselves, like Google's advanced Gemini family. These models are trained on massive datasets and can generate different creative text formats, translate languages, write different kinds of creative content, and answer your questions in an informative way (like me!). Vertex

Dev

Generative AI on Google Cloud

Imagine a world where AI can not only analyze information but also create entirely new things. This is the exciting realm of generative AI, and Google Cloud is at the forefront of this revolution. What is Generative AI? Generative AI, or generative artificial intelligence, is a field of AI focused

AI

Train your own private Large Language Model (LLM)

To install and train the "privateGPT" language model locally, you can follow these steps: Clone the Repository: Start by cloning the "privateGPT" repository from GitHub. Open your terminal or command prompt and run the following command: git clone https://github.com/imartinez/privateGPT.git Set Up Virtual Environment (optional): Move

AI

Benefits of a Private Large Language Model (LLM)

A private large language model (LLM) refers to a language model that is trained and used with a focus on preserving user privacy and data confidentiality. Here are some benefits of using a private LLM: 1. Data Confidentiality: Privacy concerns have become increasingly important in the age of large-scale language

Dev

Implement your private cloud for email, calendar and data backup for android phone

To set up a private cloud for email, calendar, and data backup on your Android phone, you can follow these general steps: 1. Choose a Cloud Storage Solution: There are several options available for private cloud storage, such as Nextcloud, OwnCloud, or Syncthing. For this example, we'll use Nextcloud. 2.

Dev

What is a Service-bus in Node.js and why use it?

A service bus is a messaging infrastructure that provides communication between microservices, decoupling the services and enabling loose coupling. In Node.js, a service bus is implemented using messaging patterns such as publish/subscribe or message queues. The main reason to use a service bus in Node.js is to

Dev

The Different 'props' available in Next.js

In Next.js, there are several props that are commonly used in components: 1. router: An object that provides information about the current URL, such as the pathname, query parameters, and asPath. You can use this prop to programmatically navigate to other pages or to extract information from the URL.

Dev

What is the arrow function in JavaScript

In JavaScript, an arrow function (also known as a "fat arrow function") is a shorthand syntax for creating anonymous functions. They were introduced in ECMAScript 6 (ES6) as an alternative to traditional function expressions. Arrow functions are useful in situations where you want to create a simple function that takes

Dev

TypeScript 101

TypeScript is a superset of JavaScript that adds optional type annotations and other features to the language. It was developed and is maintained by Microsoft and is used to build large scale, complex JavaScript applications. TypeScript provides optional type annotations, which allow developers to specify the types of variables, function

Dev

Software Patterns

Software patterns are reusable solutions to common software design problems. They provide a way to organize and structure code, making it more maintainable and understandable. Some common software patterns include: 1. Model-View-Controller (MVC) pattern: This pattern separates an application into three components: the model (data), the view (user interface), and

Software Testing

Testing Microservices in Node.js

Testing microservices in Node.js can be done using various testing frameworks and libraries. Here are a few common approaches: 1. Unit Testing: You can use a unit testing framework such as Jest or Mocha to test individual units of code, such as functions and classes. Unit tests are typically

Dev Featured

JWT Authentication With Next.js

To use JSON Web Tokens (JWT) for authentication in a Next.js application, you can use a combination of server-side and client-side code to handle the login and logout processes, as well as checking for the presence of the JWT token on every page. 1. On the server-side, you can

Next.js

Next.js call function in app.js from component

In order to call a function that is defined in app.js from a component in Next.js, you will need to do the following: Import the function in the component that you want to call it from. You can do this at the top of the file, along with

Dev

Create link with onClick event in Next.js

In Next.js, you can create a link with an onClick event using the Link component from the next/link module. The Link component allows you to navigate between pages on your website without triggering a full page reload. Here's an example of how you might create a link with

Next.js

Next.js use Url Parameter to make Api Request and Display result on Page

In a Next.js application, you can use the getInitialProps lifecycle method to make an API request using a URL parameter and then display the result on the page. The getInitialProps method is called before the component is rendered on the server or client, and it's where you can fetch

Dev

Get Parameter From URL in Next.js Page using 'getInitialProps' and Query API

In Next.js, the getInitialProps function allows you to retrieve data on the server before the component is rendered, and then pass that data to the component as props. This is useful when you need to retrieve data from an external API or the backend, and then display that data

Dev

Display API Response on Page in Next.js

In a Next.js application, you can use the getServerSideProps or getStaticProps method to fetch data from an API and pass it to a page as props. getServerSideProps is used to fetch data at runtime on the server, while getStaticProps fetches data at build time, and is intended for scenarios

Software Testing

Using Sinon.js For Testing In Node.js

Sinon.js is a JavaScript library that provides standalone test spies, stubs, and mocks for testing JavaScript code. It is commonly used in combination with a testing library such as Mocha or Jest, and it is often used to isolate the unit under test and verify that it behaves as

Software Testing

Test Stubs, Mocks and Spies

In software testing, a test stub is a small piece of code that stands in for a larger component or system in order to test the behaviour of the code that interacts with it. Test stubs are often used to isolate the unit under test and verify that it behaves

Software Testing

Chai Asserts In Node.js Testing

Chai is an assertion library that provides a variety of ways to write assertions about the expected behavior of your code. It includes a number of functions and methods that you can use to specify the expected output of a given piece of code. Here are some common examples of

Software Testing

Writing Node.js Tests With Supertest and Mocha

Supertest is a library that can be used to write tests for HTTP servers in Node.js. It provides a simple and intuitive API for making HTTP requests and asserting the responses returned by the server. To use Supertest, you will first need to install it as a dependency in

Software Testing

Writing Node.js Tests With Chai and Mocha

Chai and Mocha are both JavaScript libraries that are commonly used together for testing Node.js applications. Chai is an assertion library that provides a variety of ways to write assertions about the expected behaviour of your code. It includes a number of functions and methods that you can use