Middleware composition utility
Compose middleware for Vercel Serverless Function.
Installation
$ npm install @rxpm/vsfmAPI
Compose list of middleware to get root middeware
compose(handler1, handler2, ..., handlerN)Example
Using multiple middlewares and single handler
const middleware1: AppMiddleware = (req, res, next) => {
console.log("executing middleware 1")
next()
}
const middleware2: AppMiddleware = (req, res, next) => {
console.log("executing async middleware 2")
return new Promise(() => {
setTimeout(() => {
next()
}, 3000)
})
}
const handler: AppHandler = (req, res) => {
console.log("executing handler")
res.send("Done")
}
compose(middleware1, middleware2, handler)