nestjs-paginate/src/decorator.ts
2020-06-28 19:50:08 +02:00

40 lines
1.4 KiB
TypeScript

import { createParamDecorator, ExecutionContext } from '@nestjs/common'
import { Request } from 'express'
export interface PaginateQuery {
page?: number
limit?: number
sortBy?: [string, string][]
search?: string
path: string
}
export const Paginate = createParamDecorator(
(_data: unknown, ctx: ExecutionContext): PaginateQuery => {
const request: Request = ctx.switchToHttp().getRequest()
const { query } = request
const path = request.protocol + '://' + request.get('host') + request.baseUrl + request.path
const sortBy: [string, string][] = []
if (query.sortBy) {
const params = !Array.isArray(query.sortBy) ? [query.sortBy] : query.sortBy
for (const param of params as string[]) {
if (typeof param === 'string') {
const items = param.split(':')
if (items.length === 2) {
sortBy.push(items as [string, string])
}
}
}
}
return {
page: query.page ? parseInt(query.page.toString(), 10) : undefined,
limit: query.limit ? parseInt(query.limit.toString(), 10) : undefined,
sortBy: sortBy.length ? sortBy : undefined,
search: query.search ? query.search.toString() : undefined,
path,
}
}
)