如何解决错误:Route.put() 需要一个回调函数,但得到一个 [object Undefined]
当我运行 yarn build
时,一切正常,但是,当我运行 yarn start
时,我在终端中收到以下错误 -
$ NODE_ENV=production node ./dist/server.generated.js
/home/prithvi/Desktop/Socialize-app/node_modules/express/lib/router/route.js:202
throw new Error(msg);
^
Error: Route.put() requires a callback function but got a [object Undefined]
at Route.<computed> [as put] (/home/prithvi/Desktop/Socialize-app/node_modules/express/lib/router/route.js:202:15)
at Object.9816 (/home/prithvi/Desktop/Socialize-app/dist/server.generated.js:1:71630)
at o (/home/prithvi/Desktop/Socialize-app/dist/server.generated.js:1:77368)
at Object.642 (/home/prithvi/Desktop/Socialize-app/dist/server.generated.js:1:63316)
at o (/home/prithvi/Desktop/Socialize-app/dist/server.generated.js:1:77368)
at /home/prithvi/Desktop/Socialize-app/dist/server.generated.js:1:78149
at /home/prithvi/Desktop/Socialize-app/dist/server.generated.js:1:78597
at Object.<anonymous> (/home/prithvi/Desktop/Socialize-app/dist/server.generated.js:1:78618)
at Module._compile (node:internal/modules/cjs/loader:1095:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1124:10)
at Module.load (node:internal/modules/cjs/loader:975:32)
at Function.Module._load (node:internal/modules/cjs/loader:816:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:79:12)
at node:internal/main/run_main_module:17:47
error Command failed with exit code 1.
下面是路由文件,即,
- post.routes.js
import express from 'express';
import UserCtrl from '../controllers/user.controller';
import authCtrl from '../controllers/auth.controller';
import postCtrl from '../controllers/post.controller';
const router = express.Router();
router
.route('/api/posts/new:userId')
.post(authCtrl.requireSignin,postCtrl.create);
router.route('/api/posts/photo/:postId').get(postCtrl.photo);
router
.route('/api/posts/by/:userId')
.get(authCtrl.requireSignin,postCtrl.listByUser);
router
.route('/api/posts/feed/:userId')
.get(authCtrl.requireSignin,postCtrl.listNewsFeed);
router.route('/api/posts/like').put(authCtrl.requireSignin,postCtrl.like);
router.route('/api/posts/unlike').put(authCtrl.requireSignin,postCtrl.unlike);
router
.route('/api/posts/comment')
.put(authCtrl.requireSignin,postCtrl.comment);
router
.route('/api/posts/uncomment')
.put(authCtrl.requireSignin,postCtrl.uncomment);
router
.route('/api/posts/:postId')
.delete(authCtrl.requireSignin,postCtrl.isPoster,postCtrl.remove);
router.param('userId',UserCtrl.userById);
router.param('postId',postCtrl.postById);
export default router;
这是控制器文件,即,
- post.controller.js
import Post from '../models/post.model';
import errorHandler from './../helpers/dbErrorHandler';
import formidable from 'formidable';
import fs from 'fs';
const create = (req,res,next) => {
let form = new formidable.IncomingForm();
form.keepExtensions = true;
form.parse(req,async (error,fields,files) => {
if (error) {
return res.status(400).json({
error: 'Image could not be uploaded',});
}
let post = new Post(fields);
post.postedBy = req.profile;
if (files.photo) {
post.photo.data = fs.readFileSync(files.photo.path);
post.photo.contentType = files.photo.type;
}
try {
let result = await post.save();
res.json(result);
} catch (error) {
return res.status(400).json({
error: errorHandler.getErrorMessage(error),});
}
console.log(error);
});
};
const postById = async (req,next,id) => {
try {
let post = await Post.findById(id).populate('postedBy','_id.name').exec();
if (!post) {
return res.status(404).json({
error: 'Post not found',});
}
req.post = post;
next();
} catch (error) {
return res.status(400).json({
error: "Couldn't retrieve the user post",});
}
};
const listByUser = async (req,res) => {
try {
let posts = await Post.find({ postedBy: req.profile._id })
.populate('comments.postedBy','_id name')
.populate('postedBy','_id name')
.sort('-created')
.exec();
res.json(posts);
} catch (err) {
return res.status(400).json({
error: errorHandler.getErrorMessage(err),});
}
};
const listNewsFeed = async (req,res) => {
let following = req.profile.following;
following.push(req.profile._id);
try {
let posts = await Post.find({ postedBy: { $in: req.profile.following } })
.populate('comments.postedBy',});
}
};
const remove = async (req,res) => {
let post = req.post;
try {
let deletedPost = await post.remove();
res.json(deletedPost);
} catch (err) {
return res.status(400).json({
error: errorHandler.getErrorMessage(err),});
}
};
const photo = (req,next) => {
res.set('Content-Type',req.post.photo.contentType);
return res.send(req.post.photo.data);
};
const like = async (req,res) => {
try {
let result = await Post.findByIdAndUpdate(
req.body.postId,{ $push: { likes: req.body.userId } },{ new: true }
);
res.json(result);
} catch (err) {
return res.status(400).json({
error: errorHandler.getErrorMessage(err),});
}
};
const unlike = async (req,{ $pull: { likes: req.body.userId } },});
}
};
const comment = async (req,res) => {
let comment = req.body.comment;
comment.postedBy = req.body.userId;
try {
let result = await Post.findByIdAndUpdate(
req.body.postId,{ $push: { comments: comment } },{ new: true }
)
.populate('comments.postedBy','_id name')
.exec();
res.json(result);
} catch (err) {
return res.status(400).json({
error: errorHandler.getErrorMessage(err),});
}
};
const uncomment = async (req,res) => {
let comment = req.body.comment;
try {
let result = await Post.findByIdAndUpdate(
req.body.postId,{ $pull: { comments: { _id: comment._id } } },});
}
};
// Used to authenticate user to verify if the user who
// posted is same as the user who is deleting it.
const isPoster = (req,next) => {
let isPoster = req.post && req.auth && req.post.postedBy._id == req.auth._id;
if (!isPoster) {
return res.status('403').json({
error: 'User is not authorized',});
}
next();
};
export default {
listByUser,listNewsFeed,create,postById,remove,photo,like,unlike,comment,uncomment,isPoster,};
我使用的模块版本是 -
- express@4.17.1
- nodemon@2.0.7
- webpack@5.24.4
该错误的原因是什么?
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。