Core Basics Blog

In today's fast-paced digital landscape, building scalable and efficient distributed systems is crucial for businesses to stay competitive. Feathers.js, a popular Node.js framework, and Kubernetes, a leading container orchestration platform, can be combined to create a robust and highly available distributed system. In this article, we will explore the steps to implement a distributed system using Feathers.js and Kubernetes. Introduction to Feathers.js and Kubernetes Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to build scalable and maintainable applications. Kubernetes, on the other hand, is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. Why Use Feathers.js and Kubernetes Together? Combining Feathers.js and Kubernetes offers several benefits, including: Scalability: Kubernetes a...

In this article, we will explore how to implement request header parsing using Feathers.js and Helmet. We will cover the basics of Feathers.js and Helmet, and then dive into the implementation details. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to build scalable and maintainable applications. Key Features of Feathers.js Real-time capabilities through WebSockets and Socket.io RESTful API support Support for multiple databases, including MongoDB, PostgreSQL, and MySQL Extensive plugin ecosystem What is Helmet? Helmet is a Node.js middleware that helps secure your application by setting various HTTP headers. It provides a simple way to protect your application from common web vulnerabilities. Key Features of Helmet Content Security Policy (CSP) support Cross-Origin Resource Sharing (CORS) support HTTP Strict Transport Securi...

In this article, we will explore how to implement a WebSocket server using Feathers.js and Socket.IO. We will cover the basics of both technologies, set up a new Feathers.js project, and integrate Socket.IO to enable real-time communication between clients and the server. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to create scalable and maintainable applications, with a strong focus on real-time communication and event-driven programming. What is Socket.IO? Socket.IO is a JavaScript library for real-time communication between clients and servers. It enables bi-directional communication between web clients and servers, allowing for real-time updates and event-driven programming. Socket.IO is built on top of the WebSocket protocol and provides a simple and intuitive API for working with WebSockets. Setting up a new Feathers.js project To get started...

In this article, we will explore how to implement a gRPC API using Feathers.js and Protocol Buffers. We will cover the basics of gRPC, Feathers.js, and Protocol Buffers, and then dive into the implementation details. By the end of this article, you will have a fully functional gRPC API using Feathers.js and Protocol Buffers. What is gRPC? gRPC is a high-performance RPC framework that allows developers to build scalable and efficient APIs. It was developed by Google and is widely used in production environments. gRPC uses Protocol Buffers as the interface definition language and message format. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to build scalable and maintainable APIs. What are Protocol Buffers? Protocol Buffers are a language-agnostic data serialization format developed by Google. They are used to define the structure of data and provide a...

The Command Query Responsibility Segregation (CQRS) pattern is an architectural pattern that separates the responsibilities of handling commands and queries in an application. It's a useful pattern for building scalable and maintainable systems. In this article, we'll explore how to implement the CQRS pattern using Feathers.js, a popular Node.js framework for building real-time applications. What is CQRS? CQRS is an architectural pattern that separates the responsibilities of handling commands and queries in an application. Commands are used to perform actions, such as creating, updating, or deleting data, while queries are used to retrieve data. By separating these responsibilities, CQRS enables developers to build systems that are more scalable, maintainable, and flexible. Benefits of CQRS The CQRS pattern offers several benefits, including: Improved scalability: By separating commands and queries, CQRS enables developers to scale their systems more easily...

In this article, we will explore how to implement a multi-tenant architecture using Feathers.js, a popular Node.js framework for building real-time applications and RESTful APIs. We will cover the basics of multi-tenancy, the benefits of using Feathers.js, and provide a step-by-step guide on how to implement a multi-tenant architecture. What is Multi-Tenancy? Multi-tenancy is a software architecture pattern that allows a single instance of an application to serve multiple tenants, each with their own isolated data and configuration. This approach is commonly used in Software as a Service (SaaS) applications, where multiple customers share the same application instance, but each customer's data is kept separate and secure. Benefits of Multi-Tenancy Multi-tenancy offers several benefits, including: Cost savings: By sharing the same application instance, costs are reduced, and resources are optimized. Scalability: Multi-tenancy allows for easy scaling, as new te...

In this article, we will explore how to implement response formatting using Feathers.js and Formalism. We will cover the basics of both frameworks and then dive into the implementation details. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to build scalable and maintainable applications. Key Features of Feathers.js Real-time capabilities using WebSockets and Socket.io RESTful API support Support for multiple databases, including MongoDB, PostgreSQL, and MySQL Extensive plugin ecosystem What is Formalism? Formalism is a lightweight, open-source library for building and validating data structures in JavaScript. It provides a simple and flexible way to define and validate data structures. Key Features of Formalism Simple and flexible data structure definition Support for validation and normalization Extensive support for data t...

Feathers.js is a popular Node.js framework for building real-time applications and RESTful APIs. One of the essential features of any web application is the ability to parse request bodies. In this article, we will explore how to implement request body parsing using Feathers.js and Body-Parser. What is Body-Parser? Body-Parser is a Node.js middleware that parses the request body and populates the `req.body` property. It supports various formats, including JSON, URL-encoded, and multipart/form-data. Setting up Feathers.js and Body-Parser To get started, you need to install Feathers.js and Body-Parser using npm or yarn: npm install feathers body-parser Creating a Feathers.js Application Create a new file called `app.js` and add the following code: const feathers = require('@feathersjs/feathers'); const express = require('@feathersjs/express'); const bodyParser = require('body-parser'); const app = express(feathers()); app.use(bodyParser.js...

Feathers.js is a popular Node.js framework for building real-time applications and RESTful APIs. One of the key features of Feathers.js is its ability to handle query parameters and parse them into a usable format. In this article, we will explore how to implement request query parsing using Feathers.js and Query-parser. What is Query-parser? Query-parser is a lightweight library that allows you to parse query strings into a JavaScript object. It provides a simple and efficient way to handle query parameters in your application. Setting up Feathers.js and Query-parser To get started, you need to install Feathers.js and Query-parser using npm or yarn: npm install feathers query-parser Creating a Feathers.js Service Create a new file called `users.service.js` and add the following code: const { Service } = require('@feathersjs/feathers'); const queryParser = require('query-parser'); class UsersService extends Service { async find(params) { co...

In this article, we'll explore how to implement a GraphQL API using Feathers.js and Prisma. We'll cover the basics of each technology, set up a new project, and create a fully functional GraphQL API. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to create scalable and maintainable APIs. Key Features of Feathers.js Real-time capabilities with WebSockets and Socket.io Support for RESTful APIs and HTTP methods Modular architecture with hooks and services Extensive plugin ecosystem for additional functionality What is Prisma? Prisma is a modern ORM (Object-Relational Mapping) tool for Node.js. It provides a simple and intuitive way to interact with databases, including PostgreSQL, MySQL, and SQLite. Key Features of Prisma Auto-generated database schema and migrations Strongly typed database interactions with TypeScript S...

In this article, we will explore how to implement response compression using Feathers.js and the Compression middleware. Response compression is a technique used to reduce the size of HTTP responses, resulting in faster page loads and improved user experience. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to build scalable and maintainable applications. What is Compression Middleware? The Compression middleware is a Node.js middleware that compresses HTTP responses using gzip or deflate. It is widely used in Express.js applications, but can also be used with Feathers.js. Implementing Response Compression using Feathers.js and Compression To implement response compression using Feathers.js and the Compression middleware, follow these steps: Step 1: Install the Required Packages First, install the required packages using npm or yarn: npm install ...

In this article, we will explore how to implement response caching using Feathers.js and Cache-manager. Response caching is a technique used to improve the performance of web applications by storing frequently accessed data in a cache layer. This allows the application to retrieve data from the cache instead of re-computing it or retrieving it from a database, resulting in faster response times and reduced server load. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time web applications and RESTful APIs. It provides a simple and flexible way to build scalable and maintainable applications using Node.js. What is Cache-manager? Cache-manager is a popular caching library for Node.js that provides a simple and flexible way to implement caching in web applications. It supports a variety of cache stores, including memory, Redis, and MongoDB. Implementing Response Caching using Feathers.js and Cache-manager To implement response c...

Feathers.js is a popular Node.js framework for building real-time applications and RESTful APIs. One of its key features is support for streaming data, which allows for efficient handling of large datasets and real-time updates. In this article, we'll explore how to implement response streaming using Feathers.js and the built-in Stream API. What is Response Streaming? Response streaming is a technique used to send data from a server to a client in a continuous stream, rather than sending the entire dataset at once. This approach has several benefits, including: Improved performance: Streaming data reduces the amount of data that needs to be sent and processed at once, resulting in faster response times. Efficient handling of large datasets: Streaming allows for the processing of large datasets in chunks, reducing the risk of memory overload and improving overall system stability. Real-time updates: Streaming enables real-time updates, making it ideal for appli...

Request logging is an essential feature in any web application, as it allows developers to track and monitor incoming requests. In this article, we will explore how to implement request logging in a Feathers.js application using Morgan, a popular request logging middleware for Node.js. What is Morgan? Morgan is a request logging middleware for Node.js that provides a simple and flexible way to log incoming requests. It supports various output formats, including the standard Apache log format, and can be easily integrated with popular frameworks like Express.js and Feathers.js. Setting up a Feathers.js Application Before we dive into implementing request logging, let's set up a basic Feathers.js application. If you already have a Feathers.js application, you can skip this step. const feathers = require('@feathersjs/feathers'); const express = require('@feathersjs/express'); const app = express(feathers()); app.use(express.json()); app.use(express....

Request validation is an essential part of building robust and secure APIs. It ensures that the data received from clients is correct and consistent, preventing potential errors and security vulnerabilities. In this article, we will explore how to implement request validation using Feathers.js and Joi. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time APIs and web applications. It provides a simple and flexible way to build scalable and maintainable applications, with a strong focus on real-time communication and event-driven programming. What is Joi? Joi is a popular JavaScript library for validating and sanitizing data. It provides a simple and intuitive way to define validation rules for your data, and can be used to validate data from various sources, including APIs, forms, and databases. Setting up Feathers.js and Joi To get started with Feathers.js and Joi, you will need to install the following packages: npm install ...

Cross-Origin Resource Sharing (CORS) is a security feature implemented in web browsers to prevent malicious scripts from making unauthorized requests on behalf of the user. However, this feature can also block legitimate requests from different origins, causing issues for developers. In this article, we will explore how to implement a CORS policy using Feathers.js and CORS. What is CORS? CORS is a security feature that allows web servers to specify who can access their resources. It does this by including specific headers in the server's response to a request. These headers tell the browser which origins are allowed to access the server's resources. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to build scalable and maintainable applications. What is the CORS Middleware? The CORS middleware is a plugin for Feathers.js that allows you to implement ...

In this article, we will explore how to implement a health check using Feathers.js and Express-Healthcheck. A health check is a crucial feature in any production-ready application, as it allows you to monitor the status of your application and its dependencies. We will cover the basics of Feathers.js and Express-Healthcheck, and then dive into the implementation details. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to build scalable and maintainable applications. Feathers.js is built on top of Express.js and provides a set of features that make it easy to build real-time applications, including support for WebSockets, Socket.io, and Primus. What is Express-Healthcheck? Express-Healthcheck is a middleware for Express.js that provides a simple way to implement health checks in your application. It allows you to define a set of checks that are executed periodic...

In this article, we will explore how to implement a rate limiter using Feathers.js and Express-rate-limit. Rate limiting is an essential security feature that prevents abuse of your API by limiting the number of requests from a single IP address within a specified time frame. What is Rate Limiting? Rate limiting is a technique used to prevent excessive usage of an API by limiting the number of requests from a single IP address within a specified time frame. This helps prevent abuse of your API, such as brute-force attacks, denial-of-service (DoS) attacks, and scraping. Why Use Rate Limiting? Rate limiting is essential for several reasons: Prevents abuse of your API Prevents denial-of-service (DoS) attacks Prevents brute-force attacks Prevents scraping Improves API performance Reduces server load What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs using Node.js. It provides a sim...

In this article, we will explore how to implement a circuit breaker pattern in a Feathers.js application using Hystrix. The circuit breaker pattern is a design pattern that prevents cascading failures in distributed systems by detecting when a service is not responding and preventing further requests to that service until it becomes available again. What is Hystrix? Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services, and third-party libraries, stop cascading failure, and enable resilience in complex distributed systems where failure is inevitable. What is Feathers.js? Feathers.js is a lightweight web framework for Node.js that allows you to build RESTful APIs and real-time applications quickly and easily. It provides a simple and intuitive API for building web applications. Why Implement a Circuit Breaker? A circuit breaker is essential in distributed systems to prevent cascading failures. When a service is no...

Service discovery is a crucial component of modern microservices architecture. It allows services to dynamically register themselves and be discovered by other services in the system. In this article, we will explore how to implement service discovery using Feathers.js and Consul. What is Feathers.js? Feathers.js is a lightweight, open-source framework for building real-time applications and RESTful APIs. It provides a simple and flexible way to build scalable and maintainable applications. What is Consul? Consul is a modern, open-source service discovery and configuration management tool. It allows services to register themselves and be discovered by other services in the system. Consul also provides features such as health checking, load balancing, and configuration management. Why Use Feathers.js and Consul Together? Feathers.js and Consul are a great combination for building modern microservices applications. Feathers.js provides a simple and flexible way to build sca...