如何在 guard(Resource OwnerGuard) 之前执行 pipe(Validate Object Id)？

Question

我在玩 nestjs 和 mongoose。

代码：

class BrevesController {

    constructor(private readonly brevesService: BrevesService) { }
     // Here is used BreveOwnerGuard(1)
    @UseGuards(JwtAuthGuard, BreveOwnerGuard)
    @Get(':breveId')
    // Here is used ValidateObjectId(3)
    async getById(@Param('breveId', ValidateObjectId) id: string) {
        return await this.brevesService.getById(id)
    }
}

class BreveOwnerGuard {

    constructor(private readonly brevesService: BrevesService) { }

    async canActivate(context: ExecutionContext) {
        const req = context.switchToHttp().getRequest()
        const {user, params} = req
        const {breveId} = params
        // This is executed before ValidateObjectId in getById 
        // route handler and unknown error is thrown but we
        // have pipe for this.(2)
        const breve = await this.brevesService.getById(breveId)
        const breveCreatorId = breve.creatorId.toString()
        const userId = user.id
        return breveCreatorId === userId
    }
}

因此，在使用无效对象 ID 请求 /breves/:breveId 后，BreveOwnerGuard 在 ValidateObjectId 之前执行，并抛出未知错误。

这个流程有没有办法在 BreveOwnerGuard 之前验证 ObjectId？

或者这种情况我该怎么办？预期是什么？

Answer 1

Guards are executed after each middleware, but before any interceptor or pipe.

来源：Guard Docs（我强调）

除了将 ResourceOwnerGuard 更改为管道或将 ValidateObjectId 更改为守卫外，您无能为力。

如何在 guard(Resource OwnerGuard) 之前执行 pipe(Validate Object Id)？

How to execute pipe(ValidateObjectId) before guard(ResourceOwnerGuard)?

guard

mongoose

node.js

server

nestjs