当我发送请求时，我总是得到一个错误.React和MongoDB

Question

我是新来的IT，我开始通过视频课程学习React和JS。在为视频课程创建网站时，我遇到了许多错误:当我试图发送一个用try catch封装的请求时，我总是得到一个错误。我不明白为什么会这样，请帮忙。

index.js

const express = require("express");
const app = express();
const mongoose = require("mongoose");
const dotenv = require("dotenv");
const authRoute = require("./routes/auth");

dotenv.config();
mongoose
.connect(process.env.URL_MONGO, {
useNewUrlParser: true,
useUnifiedTopology: true,
})
.then(() => console.log("Successfully connected"))
.catch((err) => {
console.error(err);
});
app.use(express.json());
app.use("/api/auth", authRoute);

app.listen(8800, () => {
console.log("Server is running!");
});

User.js

const mongoose = require("mongoose");
const UserSchema = new mongoose.Schema(
{
username: { type: String, required: true, unique: true },
email: { type: String, required: true, unique: true },
password: { type: String, required: true },
profilePic: { type: String, defaut: "" },
isAdmin: { type: Boolean, default: false },
},
{ timestamps: true }

);
module.exports = mongoose.model("User", UserSchema);

auth.js

const router = require("express").Router();
const User = require("../models/User");

router.post("/registration", async (req, res) => {
const newUser = new User({
username: req.body.username,
email: req.body.email,
password: req.body.password,
})
try {
const user = await newUser.save();
res.status(201).json(user);
} catch (err) {
res.status(500).json(err);
}
});
module.exports = router;

注册请求

第二部分邮差

Answer 1

我在你的img上看到，你和我一样在克隆Netflix。

我可以看到你对邮差的要求是:

{
"username" = "eeqeqeqw",
"email": "[e-mail]",
"password":"2221"
}

所以当处理对象时，值被赋值为":"而不是"="象征。

尝试这样做相同的请求:

{
"username": "eeqeqeqw",
"email": "[e-mail]",
"password":"2221"
}