Learn VERCEL-SERVERLESS with Real Code Examples

Install Vercel CLI via npm (`npm install -g vercel`)

Log in with Vercel account

Initialize a project using `vercel init`

Connect Git repository for automatic deployments

Deploy function with `vercel deploy` command

Install Node.js and npm

Install Vercel CLI

Log in with Vercel account

Initialize project with `vercel init`

Deploy sample function to test environment

vercel.json - project configuration

package.json - dependencies and scripts

.env - local environment variables

api/*.js - serverless function endpoints

pages/ - Next.js pages and API routes

vercel dev - run project locally

vercel deploy - deploy project

vercel logs <function> - view logs

vercel env add - add environment variables

vercel --prod - deploy to production

No built-in i18n in serverless functions

Edge functions can serve localized responses based on headers

Developer handles content translation or localization

Works well with multilingual front-end frameworks

Focus is infrastructure and function execution, not translation

Accessible via CLI, Git-based deployment, and Vercel dashboard

Functions reachable via HTTP requests

Edge functions optimize response for global users

Logs and metrics accessible for debugging

Integration with Git enables collaborative workflows

No UI provided for functions - API/edge-only

Integration with front-end frameworks like Next.js

Dashboard provides analytics, logs, and deployments

Webhooks can be used to integrate with other UI tools

Focus is backend/serverless, not UI rendering

Functions are stateless by default

Persistent state managed via external DBs or APIs

Environment variables provide configuration

Edge functions isolate execution per request

No global shared state between invocations

Input via HTTP request (body, query, headers)

Output via HTTP response

External databases for persistence

Environment variables and secrets for configuration

Logs and analytics automatically collected