Initialize a package.json file in the root folder of your project:

npm init -y

Then install any npm package you need, for example:

npm install axios

A node_modules folder and a package-lock.json file will be created. Commit both (yes, you need to add the node_modules content to the repository you want to deploy, try to keep your dependencies as few as possible)

That’s it. You can now access those npm packages using require() in your Netlify Functions.

Lessons in this unit:

0:	Introduction
1:	Create a Netlify account
2:	Deploy to Netlify
3:	A tutorial to host your Static Site on Netlify
4:	Auto trigger deploys on Netlify
5:	Netlify Lambda Functions Tutorial
6:	How to use environment variables in Netlify functions
7:	▶︎ How to use npm packages in Netlify Functions
8:	How to access query parameters in Netlify functions
9:	How to test Netlify Functions locally
10:	How to use Netlify Edge Functions
11:	How to set up "cloud cron jobs" using Netlify Scheduled Functions
12:	How I fixed the trailing slash in Netlify rewrites
13:	Durable cache on Netlify
14:	How to return HTML from a Netlify function
15:	How to use ES modules in Netlify functions
16:	How to trigger a Netlify-Vercel-Cloudflare Pages redeploy using a link