Middleware

Since 1.4.0

Middleware function type.

Signature

type Middleware<C extends Record<string, any> = object> = (
  ctx: Context<C>,
  next: () => Promise<void>
) => Promise<void>

Parameters

Parameter	Description
C	Context type

Description

Middleware function that can modify context and call next middleware.

Examples

Basic Usage

import type { Middleware, Context } from 'uni-types'

type AuthMiddleware = Middleware<{ user: { id: string } }>

const auth: AuthMiddleware = async (ctx, next) => {
  ctx.user = await authenticate(ctx.request)
  await next()
}

Related

• Context - Request context
• ComposeMiddleware - Compose middleware chain