javascript - Express 端点对于 POST 返回 404，对于 GET 返回 200

Question

使用 Express 的 API 构建了一个简单的 Node 应用程序。发送 GET 请求工作正常，我得到的状态为 200。但是，当我向同一端点发送 POST 请求时，我收到的状态为 404 未找到。

我已经使用 Postman 和 cURL 进行了测试，并且得到了相同的结果。

服务器.js

const express = require("express")
const mongoose = require("mongoose")
const config = require("config")
const axios = require("axios")

const db = config.get("mongoURI")
const port = process.env.PORT || 3000
const app = express()

// Middleware parsing
app.use(express.json())
app.use(express.urlencoded({ extended: false }));

// DATABASE CONNECT
mongoose
  .connect(db, { useNewUrlParser: true })
  .then(() => console.log("Connected to mLab database"))
  .catch(err => console.log("ERROR: ", err))

// ROUTER  
app.use("/api/stocks", require("./routes/api/stocks"))

// POST REQUEST INternal API ##########
function postSymbols() {
  axios.post("http://localhost:3000/api/stocks", "exampleStock")
    .then(res => {
      console.log(res.data.msg)
    })
    .catch(err => console.log("POST postSymbols() ERROR", err.response.status, err.response.statusText))
}

// GET REQUEST INternal API ##########
// CURRENTLY WORKS
function showStocks(){
  axios.get("http://localhost:3000/api/stocks")
    .then(res => console.log(res.data.msg))
    // .then(res => console.log(res.data.stocks))
    .catch(err => console.log("GET showStocks() ERROR", err))
}

// NODE SERVER ##########
app.listen(port, () => {
  console.log("Node server started on: ", port);
  showStocks()
  postSymbols()
})

路由/api/stocks.js

const express = require("express")
const router = express.Router()

const Stock = require("../../model/Stocks")


router.get("/", (req, res) => {
  console.log("GET router hit.")
  Stock.find()
    .then(stocks => res.json({
      stocks,
      msg: "GET request sucessfull."
    }))
})

router.post("/"), (req, res) => {
  console.log("POST router hit.")
  const newStock = new Stock({
    name: req.body.name,
    message: req.body.message,
    date: req.body.date,
    isEnabled: req.body.isEnabled,
    type: req.body.type,
    iexId: req.body.iexId,
    currentPrice: req.body.currentPrice
  })
  newStock.save()
    .then(stocks => res.json({
      stocks,
      msg: "POST request sucessfull!"

    }))
    .catch(err => console.log("POST ERROR: ", err))
}


module.exports = router;

以下是 Postman 请求和结果的图像 postman 获得 200 Postman GET 200

postman POST 404 Postman POST 404

我期望获得 GET 和 POST 请求的 res.json 成功消息，但是我只获得 GET 的 res.json 成功消息，而对于 POST 请求，我收到 404 Not Found

Answer 1

您在 POST 路由定义中放错了右括号:

router.post("/", (req, res) => {
  ...
});