Vercel Function with Custom Headers - Vercel-serverless Typing CST Test
Loading…
Vercel Function with Custom Headers — Vercel-serverless Code
A function that adds custom headers to the response.
# vercel/demo/headers.js
export default function handler(req, res) {
res.setHeader('X-Custom-Header', 'VercelFunction');
res.status(200).send('Custom headers added');
}Vercel-serverless Language Guide
Vercel Serverless is a cloud-native serverless platform that allows developers to deploy JavaScript, TypeScript, and other web functions globally with zero infrastructure management. It emphasizes fast deployment, automatic scaling, and edge distribution.
Primary Use Cases
- ▸Serverless REST and GraphQL APIs
- ▸Edge functions for personalization and A/B testing
- ▸Dynamic routes in Next.js applications
- ▸Webhook handlers for third-party services
- ▸On-demand image optimization and processing
Notable Features
- ▸Automatic global deployment to edge locations
- ▸Zero-config scaling and routing
- ▸Built-in analytics, monitoring, and logging
- ▸Supports HTTP triggers for API endpoints
- ▸Seamless integration with front-end frameworks (Next.js, React)
Origin & Creator
Vercel Serverless was developed by Vercel (formerly ZEIT) in 2015 as part of its platform to simplify frontend and full-stack deployments.
Industrial Note
Vercel Serverless is ideal for web developers and teams building front-end applications that require serverless APIs, edge functions, or dynamic backends tightly integrated with static hosting.
More Vercel-serverless Typing Exercises
Simple Vercel Serverless Function (JavaScript)Vercel Serverless Function with JSON ResponseVercel Function with Query ParametersVercel Function Handling POST RequestVercel Function with Environment VariablesVercel Function RedirectVercel Function Fetching External APIVercel Function Serving HTMLVercel Function Conditional Response