Nodejs cache how to#
For a more detailedĮxplanation of how to deploy an application, see Getting Started with Node.js To the recognition and execution of Node.js applications. Simple.This document describes the general behavior of Heroku as it relates Otherwise our endpoint will respond with an error. On success, our endpoint will return the data of the Starship corresponding to the id in the URL. We will use a traditional async call back function with try and catch blocks to make GET requests to the Star Wars API using axios. The following is how our endpoint will look like, // Endpoint: GET /starships/:id // Return Starships data for particular starship id app.get("/starships/:id", async ( req, res) => ) Note that we will make a GET request to :id to fetch the data of a Starship corresponding to the identifier id in our URL.
Nodejs cache code#
Now that we have our project setup, let’s write some code to setup an endpoint to send a GET request to the Star Wars API to get Starships data. Setup Server Endpoint to send a request to the Star Wars API On your terminal you can run the following command to start your Redis server locally, redis-server
Nodejs cache install#
You can use this simple guide to install Redis on your Windows machine.
You can use this simple guide to install Redis on your Ubuntu machine. Now you can install Redis by running the following command on your terminal, brew install redis Install on Ubuntu If you do not have Homebrew installed on your Mac, you can run the following command on your terminal to install it, /usr/bin/ruby -e "$(curl -fsSL )" Redis can be installed on your Mac using Homebrew. If you already have Redis installed on your local machine or if you are using a Redis cloud hosting solution, feel free to skip this step. Sounds exciting? Let’s get started! Redis Setup To make sure that our cache is up to date, the cached value will be set with a time to live (TTL) and will expire after a definite period of time. This will allow us to send less requests to the third party API and overall speed up our application. Future requests from our web server will first search the cache and only send a request to the Star Wars API if the cache does not contain the requested data.
We will learn how to store frequently requested Starships data to our cache. Today, we will implement a basic cache mechanism on a NodeJS web application which requests Star Wars Starships information from the Star Wars API. Redis also supports many different data types and clients based on different programming languages. What is surprising is that it stores all its data in the RAM and promises highly optimized data reads and writes. Redis is a high performance open source NoSQL database primarily used as a caching solution for various types of applications. Be it a search engine and you want to respond to frequently requested queries with minimum latency, a URL shortener and you want to redirect to frequently accessed URLs faster, a social network and you want to load popular user profiles quicker, or perhaps a very simple web server that requests data from a third party web API and you have plans to scale, caching data can prove to be very fruitful! What is Redis? Why use Redis?
Caching your web application is highly essential and can grant high performance gains as you scale.
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