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.
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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 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 send an email using SendGrid in Node JS?
< 1 min readTo send an email using SendGrid in Node.js, you will need to install the SendGrid Node.js library and then use its send method to send an email. Here’s an example of how you could do this: 1. First, install the SendGrid library using npm: 2. Next, require the @sendgrid/mail module in your Node.js script: 3….
How to kill a node process?
< 1 min readTo kill a Node.js process, you can use one of the following methods: 1. process.exit(): You can use the process.exit() method to exit the current Node.js process with an optional exit code. This method will cause the process to exit immediately, without waiting for any asynchronous operations to complete. For example: 2. process.kill(): You can…
how to read a large file one line at a time in node.js?
< 1 min readTo read a large file one line at a time in Node.js, you can use the readline module and the readline.createInterface() function. The readline module provides an interface for reading data from a Readable stream (such as a file) one line at a time. The readline.createInterface() function takes an input stream and an output stream…
How to append a file in Node JS?
< 1 min readTo append data to a file in Node.js, you can use the fs (file system) module and the fs.appendFile() function. The fs.appendFile() function takes a file path and a string or Buffer as arguments, and asynchronously writes the data to the end of the file. If the file does not exist, it will be created….
what is the difference between exports and module exports?
< 1 min readIn Node.js, the module.exports and exports variables are used to define the values that a module exports to be used by other modules. The module.exports variable is an object that represents the module itself. You can assign any value to module.exports, and that value will be returned when the module is required by another file….