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This is because they can be easily retrieved from the Developer Tools through the API fetch request in the browser. Secret credentials such as access tokens or API keys, hidden solely using environment variables, are less secure. It securely accesses environment variables behind the scenes via the Amazon Web Services (AWS) lambda function. "Serverless functions, branded as Netlify Functions when running on Netlify, are a way to deploy server-side code as API endpoints" - Netlify Docs

The purpose of this Netlify function is to manage serverless event-driven code and send HTTP requests that return a JSON response. You use them to deploy server-side code or backend logic without the need for a dedicated server. Netlify functions are serverless or lambda functions provided by Netlify. The final demo app lives in the main branch on GitHub: What is a Netlify function?

To follow along with this tutorial, you should have the following: This is the same process for front-end applications built with ReactJS, NextJS, VueJS, Angular, or other JavaScript frameworks. This guide focuses on showing you how to set up a Netlify serverless function to hide Application Programming Interface (API) keys in a client-side application.įor this lesson, you will create a stock photo search engine web application, deploy it on Netlify, and make an API call to the Pixabay API using Netlify serverless functions. It also provides additional features such as security, user authentication and authorization services, and more. You can use Netlify to host websites, and it helps you update and release new changes. Netlify is a popular web development platform that makes it easier to build, deploy, and manage websites.