117 lines
3.0 KiB
TypeScript

import express from 'express'
import {IRoutes, TMethod} from '@rondo/common'
import {TTypedHandler, TTypedMiddleware} from './TTypedHandler'
export class AsyncRouter<R extends IRoutes> {
readonly router: express.Router
readonly use: express.IRouterHandler<void> & express.IRouterMatcher<void>
constructor(router?: express.Application | express.Router) {
this.router = router ? router : express.Router()
this.use = this.router.use.bind(this.router) as any
}
protected addRoute<M extends TMethod, P extends keyof R & string>(
method: M,
path: P,
...handlers: [TTypedHandler<R, P, M>] | [
Array<TTypedMiddleware<R, P, M>>,
TTypedHandler<R, P, M>,
]
) {
const addRoute = this.router[method].bind(this.router as any)
if (handlers.length === 2) {
const middleware = handlers[0]
const handler = handlers[1]
addRoute(path, ...middleware, this.wrapHandler(handler))
} else {
addRoute(path, this.wrapHandler(handlers[0]))
}
}
protected wrapHandler<M extends TMethod, P extends keyof R & string>(
handler: TTypedHandler<R, P, M>,
): express.RequestHandler {
return (req, res, next) => {
handler(req, res, next)
.then(response => {
res.json(response)
})
.catch(next)
}
}
get<P extends keyof R & string>(
path: P,
...handlers: [TTypedHandler<R, P, 'get'>] | [
Array<TTypedMiddleware<R, P, 'get'>>,
TTypedHandler<R, P, 'get'>,
]
): void {
this.addRoute('get', path, ...handlers)
}
post<P extends keyof R & string>(
path: P,
...handlers: [TTypedHandler<R, P, 'post'>] | [
Array<TTypedMiddleware<R, P, 'post'>>,
TTypedHandler<R, P, 'post'>,
]
) {
this.addRoute('post', path, ...handlers)
}
put<P extends keyof R & string>(
path: P,
...handlers: [TTypedHandler<R, P, 'put'>] | [
Array<TTypedMiddleware<R, P, 'put'>>,
TTypedHandler<R, P, 'put'>,
]
) {
this.addRoute('put', path, ...handlers)
}
delete<P extends keyof R & string>(
path: P,
...handlers: [TTypedHandler<R, P, 'delete'>] | [
Array<TTypedMiddleware<R, P, 'delete'>>,
TTypedHandler<R, P, 'delete'>,
]
) {
this.addRoute('delete', path, ...handlers)
}
head<P extends keyof R & string>(
path: P,
...handlers: [TTypedHandler<R, P, 'head'>] | [
Array<TTypedMiddleware<R, P, 'head'>>,
TTypedHandler<R, P, 'head'>,
]
) {
this.addRoute('head', path, ...handlers)
}
options<P extends keyof R & string>(
path: P,
...handlers: [TTypedHandler<R, P, 'options'>] | [
Array<TTypedMiddleware<R, P, 'options'>>,
TTypedHandler<R, P, 'options'>,
]
) {
this.addRoute('options', path, ...handlers)
}
patch<P extends keyof R & string>(
path: P,
...handlers: [TTypedHandler<R, P, 'patch'>] | [
Array<TTypedMiddleware<R, P, 'patch'>>,
TTypedHandler<R, P, 'patch'>,
]
) {
this.addRoute('patch', path, ...handlers)
}
}