文件路由 Params 设计

params.ts

// 默认情况
// /lambda/article/[id].ts
export default async (id: string) => {
  return id
}

export const content = (id: string) => {
  // id = req.params.id = 路径
  return id
}

// GET /api/article/MarkTwain => MarkTwain
// GET /api/article/Hemingway/content => Hemingway

// 嵌套
// /lambda/[user]/history/[year].ts
export default async (user: string, year: string) => {
  return id
}

// 可以匹配，/api/jack/history/35，req.params = { user: jack, year: 35 }