使用mongoose在javascriptforof回圈中等待-有解無憂

我的代碼有什么問題嗎？我用快遞和貓鼬

router.get('/c/:hashtoken', validateEmailToken, catchAsync(async(req,res)=>{
    const hashtoken = req.params.hashtoken
    const hashtoken2 = createHash('sha256').update(hashtoken).digest('hex')
    const realHashTokens = await EmailToken.find({hashtoken2})
    if(realHashTokens.length===0){
        req.flash('error','Incorrect email verification token or Your account has been activated')
        return res.redirect('/')
    }
    const toDeleteTokenId = []
    for(let realHashToken of realHashTokens){
        let theUser = await User.findById(realHashToken.user)
        theUser.active = true
        await theUser.save()
        toDeleteTokenId.push(realHashToken._id)
    }
    for (let theId of toDeleteTokenId){
        await EmailToken.findByIdAndDelete(theId)
    }
    req.flash('success','Success! Your account has been activated')
    return res.redirect('/')
}))

該頁面從未回應。它不斷加載，但如果我檢查了資料庫，用戶就會變得活躍

uj5u.com熱心網友回復：

我已經解決了這個問題。此代碼中的 User 模型具有 post mongoose 中間件，在該函式中，即使之后沒有其他 post 中間件，我也會呼叫 next()，因此服務器以長回應進行回應并且頁面不斷加載。

uj5u.com熱心網友回復：

設定錯誤處理程式或包裝在 try/catch 中。還要添加更多除錯陳述句。

router.get('/c/:hashtoken', validateEmailToken, catchAsync(async(req,res)=>{
try {
    console.log('request received')
    const hashtoken = req.params.hashtoken
    const hashtoken2 = createHash('sha256').update(hashtoken).digest('hex')
    console.log('finding token')
    const realHashTokens = await EmailToken.find({hashtoken2})
    if(realHashTokens.length===0){
        req.flash('error','Incorrect email verification token or Your account has been activated')
        return res.redirect('/')
    }
    const toDeleteTokenId = []
    console.log('finding user')
    for(let realHashToken of realHashTokens){
        let theUser = await User.findById(realHashToken.user)
        theUser.active = true
        await theUser.save()
        toDeleteTokenId.push(realHashToken._id)
    }
    console.log('deleting')
    for (let theId of toDeleteTokenId){
        await EmailToken.findByIdAndDelete(theId)
    }
    console.log('completed - redirecting')
    req.flash('success','Success! Your account has been activated')
    return res.redirect('/')
}
 catch(e) {
   console.error(e)
   // res.sendStatus(500)
   req.flash('error', e.message)
   return res.redirect('/')
}
}))

轉載請註明出處，本文鏈接：https://www.uj5u.com/yidong/369356.html

標籤：javascript 节点.js MongoDB 表达猫鼬

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