How to Use Redis as a Cache in Node.js
< 1 min readIntro:Redis is an in-memory store perfect for caching API responses in Node.js. Takeaway:Use setex to store data with an expiry time.
Category: NodeJS
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How to Create a REST API in Node.js with Express
< 1 min readIntro:Express.js is the most popular framework for building REST APIs in Node.js. Snippet: Takeaway:Keep routes modular and use express.json() for parsing JSON requests.
how to display all files in a directory in Node JS?
< 1 min readYou can use the built-in fs (file system) module in Node.js to display all files in a directory. Here’s an example of how to achieve this: Replace ‘path/to/your/directory’ with the actual path of the directory you want to list files from. The readdir function reads the contents of the specified directory and passes an array…
How to make an HTTP request in Node JS?
< 1 min readIn Node.js, you can make an HTTP request using the built-in http or https modules. Here’s an example of making an HTTP GET request using the http module: This code makes an HTTP GET request to http://example.com. When the response is received, the response data is concatenated to a string variable data and the final…
What is the difference between import and require in Node js?
< 1 min readIn Node.js, require() and import are two different ways of including external modules in your application. require() is a CommonJS module system function that is used to load and include external modules in a Node.js application. It is the most commonly used method of including modules in Node.js. require() is a synchronous function that returns…
How to check the node version?
< 1 min readYou can check the version of Node.js installed on your system by running the following command in your terminal or command prompt: This will print the version number of Node.js installed on your system, such as v14.17.0. If you have installed Node.js using a package manager, such as npm, you can also check the version…
How to auto reload Node JS application using nodemon?
< 1 min readTo auto-reload a Node.js application using nodemon, you need to install nodemon as a development dependency of your project, and then configure it to run your application. To install nodemon, open a terminal and navigate to the root directory of your project. Then, run the following command: This will install nodemon and add it to…
How to create an event emitter in Node JS?
< 1 min readAn event emitter is an object that can emit events and register listeners for those events. Event emitters are often used in Node.js to implement the publish-subscribe pattern, where one or more objects publish events and zero or more objects subscribe to those events and execute some code when the events are emitted. In Node.js,…