![]() Postgres: The database of choice to store user location data.Socket.IO: Implements WebSockets under the hood.Node.js/Express: For our application server.In this guide, we be building a real-time, location-sharing application using Node.js and Socket.IO as our use case. There are extensive guides that highlight the different use cases for both traditional REST APIs and WebSockets. WebSockets, meanwhile, don’t benefit as much from caching, as this may have negative effects on performance. The resources used to build traditional REST APIs are highly cacheable because they are rarely updated. In such a scenario, we need to be notified as the price of the asset changes, which is where WebSockets shine. For us to get the most recent price, we would need to initiate a request and it’s highly probable that it will have changed again just as our response arrives! However, the actual price of a coin itself is very volatile, as it responds to market trends, like any asset. ![]() If you look at a crypto trade, for example, when we place a bid to buy a coin, the bid is unlikely to change very often, so we can model this behavior accurately using a traditional REST API. Traditional REST APIs are at their most useful when we want to retrieve a resource and don’t need constant ongoing updates. In this article, we’ll look at how you can use Socket.IO with Node.js for real-time communication of data for your application for use cases like this. ![]() For many use cases today, developers need to constantly update information for their applications in real time, which necessitates the use of a bi-directional communication tool that can keep data updated instantly. Socket.IO provides communication between web clients and Node.js servers in real time. Find me on Twitter Building a real-time location app with Node.js and Socket.IO Gbolahan Olagunju Follow Let's have a chat about your project.
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