22 lines
780 B
TypeScript
22 lines
780 B
TypeScript
import { searchesCol, tryMongo } from '../utils/mongo'
|
|
|
|
/** 热搜关键词：按搜索次数降序，返回前 N 个 */
|
|
export default defineEventHandler(async (event) => {
|
|
const limit = Math.min(Number(getQuery(event).limit) || 10, 50)
|
|
|
|
const data = await tryMongo(async () => {
|
|
const col = await searchesCol()
|
|
const hot = await col
|
|
.aggregate<{ _id: string; count: number; last: Date }>([
|
|
{ $group: { _id: '$keyword', count: { $sum: 1 }, last: { $max: '$createdAt' } } },
|
|
{ $sort: { count: -1, last: -1 } },
|
|
{ $limit: limit }
|
|
])
|
|
.toArray()
|
|
return hot.map((h) => ({ keyword: h._id, count: h.count, last: h.last }))
|
|
})
|
|
|
|
if (!data) return { keywords: [], offline: true }
|
|
return { keywords: data, offline: false }
|
|
})
|