我的项目在本地运行时似乎没有问题，但当我尝试在heroku中部署它并打开应用程序时，会出现应用程序错误。我试着在heroku中查看日志，结果就是这样。
2022-09-14T20:31:10.475090+00:00 app[web.1]: at Module.require (node:internal/modules/cjs/loader:1028:19)
2022-09-14T20:31:10.475091+00:00 app[web.1]: at require (node:internal/modules/cjs/helpers:102:18)
2022-09-14T20:31:10.475091+00:00 app[web.1]: at Object.<anonymous> (/app/controllers/auth.js:1:19)
2022-09-14T20:31:10.475092+00:00 app[web.1]: at Module._compile (node:internal/modules/cjs/loader:1126:14)
2022-09-14T20:31:10.475092+00:00 app[web.1]: at Object.Module._extensions..js (node:internal/modules/cjs/loader:1180:10)
2022-09-14T20:31:10.475092+00:00 app[web.1]: at Module.load (node:internal/modules/cjs/loader:1004:32)
2022-09-14T20:31:10.475093+00:00 app[web.1]: at Function.Module._load (node:internal/modules/cjs/loader:839:12)
2022-09-14T20:31:10.475093+00:00 app[web.1]: at Module.require (node:internal/modules/cjs/loader:1028:19) {
2022-09-14T20:31:10.475093+00:00 app[web.1]: code: 'MODULE_NOT_FOUND',
2022-09-14T20:31:10.475094+00:00 app[web.1]: requireStack: [
2022-09-14T20:31:10.475094+00:00 app[web.1]: '/app/controllers/auth.js',
2022-09-14T20:31:10.475094+00:00 app[web.1]: '/app/routes/auth.js',
2022-09-14T20:31:10.475095+00:00 app[web.1]: '/app/index.js'
2022-09-14T20:31:10.475095+00:00 app[web.1]: ]
2022-09-14T20:31:10.475095+00:00 app[web.1]: }
2022-09-14T20:31:10.660749+00:00 heroku[web.1]: Process exited with status 1
2022-09-14T20:31:10.723193+00:00 heroku[web.1]: State changed from starting to crashed
2022-09-14T20:31:10.726441+00:00 heroku[web.1]: State changed from crashed to starting
2022-09-14T20:31:13.020405+00:00 heroku[web.1]: Starting process with command `npm start`
2022-09-14T20:31:16.234548+00:00 app[web.1]:
2022-09-14T20:31:16.234562+00:00 app[web.1]: > server@1.0.0 start
2022-09-14T20:31:16.234562+00:00 app[web.1]: > node index.js
2022-09-14T20:31:16.234563+00:00 app[web.1]:
2022-09-14T20:31:16.387441+00:00 app[web.1]: node:internal/modules/cjs/loader:959
2022-09-14T20:31:16.387443+00:00 app[web.1]: throw err;
2022-09-14T20:31:16.387444+00:00 app[web.1]: ^
2022-09-14T20:31:16.387444+00:00 app[web.1]:
2022-09-14T20:31:16.387444+00:00 app[web.1]: Error: Cannot find module 'getStream'
2022-09-14T20:31:16.387445+00:00 app[web.1]: Require stack:
2022-09-14T20:31:16.387445+00:00 app[web.1]: - /app/controllers/auth.js
2022-09-14T20:31:16.387446+00:00 app[web.1]: - /app/routes/auth.js
2022-09-14T20:31:16.387446+00:00 app[web.1]: - /app/index.js
2022-09-14T20:31:16.387446+00:00 app[web.1]: at Function.Module._resolveFilename (node:internal/modules/cjs/loader:956:15)
2022-09-14T20:31:16.387447+00:00 app[web.1]: at Function.Module._load (node:internal/modules/cjs/loader:804:27)
2022-09-14T20:31:16.387447+00:00 app[web.1]: at Module.require (node:internal/modules/cjs/loader:1028:19)
2022-09-14T20:31:16.387448+00:00 app[web.1]: at require (node:internal/modules/cjs/helpers:102:18)
2022-09-14T20:31:16.387448+00:00 app[web.1]: at Object.<anonymous> (/app/controllers/auth.js:1:19)
2022-09-14T20:31:16.387448+00:00 app[web.1]: at Module._compile (node:internal/modules/cjs/loader:1126:14)
2022-09-14T20:31:16.387449+00:00 app[web.1]: at Object.Module._extensions..js (node:internal/modules/cjs/loader:1180:10)
2022-09-14T20:31:16.387449+00:00 app[web.1]: at Module.load (node:internal/modules/cjs/loader:1004:32)
2022-09-14T20:31:16.387449+00:00 app[web.1]: at Function.Module._load (node:internal/modules/cjs/loader:839:12)
2022-09-14T20:31:16.387449+00:00 app[web.1]: at Module.require (node:internal/modules/cjs/loader:1028:19) {
2022-09-14T20:31:16.387450+00:00 app[web.1]: code: 'MODULE_NOT_FOUND',
2022-09-14T20:31:16.387450+00:00 app[web.1]: requireStack: [
2022-09-14T20:31:16.387450+00:00 app[web.1]: '/app/controllers/auth.js',
2022-09-14T20:31:16.387450+00:00 app[web.1]: '/app/routes/auth.js',
2022-09-14T20:31:16.387451+00:00 app[web.1]: '/app/index.js'
2022-09-14T20:31:16.387451+00:00 app[web.1]: ]
2022-09-14T20:31:16.387451+00:00 app[web.1]: }
2022-09-14T20:31:16.528452+00:00 heroku[web.1]: Process exited with status 1
2022-09-14T20:31:16.728856+00:00 heroku[web.1]: State changed from starting to crashed
2022-09-14T20:31:55.119571+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET pad="190.237.25.187" dyno= connect= service= status=503 bytes= protocol=https2022-09-14T20:42:01.202592+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=file-iu-sys.herokuapp.com request_id=b157556e-1a74-4d16-aef5-7e2e8cea2612 fwd="190.237.25.187" dyno= connect= service= status=503 bytes= protocol=https 2022-09-14T20:42:02.113418+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=file-iu-sys.herokuapp.com request_id=2c0cf996-5b33-4d15-b7c6-88cedd9f9c25 fwd="190.237.25.187" dyno= connect= service= status=503 bytes= protocol=https
我尝试过检查丢失的脚本，将端口更改为process.env.PORT、heroku repo:reset，删除git文件并启动新的git init，甚至删除node_modules文件夹并运行npm install。我尝试在heroku中托管的一个类似的应用程序似乎运行起来没有问题，不同的是这个应用程序有一个mysql依赖项，而heroku应用程序则有一个clearDB插件。"getstream"版本是"8.0.1"(运行时没有问题的版本是"8.0.0"，这可能是问题所在吗？(。
这是我的package.json文件：
{
"name": "server",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "node index.js",
"dev": "nodemon index.js"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"bcrypt": "^5.0.1",
"body-parser": "^1.20.0",
"cors": "^2.8.5",
"crypto": "^1.0.1",
"dotenv": "^16.0.1",
"express": "^4.18.1",
"getstream": "^8.0.1",
"mysql": "^2.18.1",
"nodemon": "^2.0.16",
"stream-chat": "^6.5.1"
}
}
index.js文件：
const express = require('express');
const cors = require('cors');
const mysql = require('mysql');
const bodyParser = require('body-parser')
const authRoutes = require('./routes/auth.js')
const connection = mysql.createPool({
host: '*host-name*',
user: '*user*',
password: '*password*',
database: '*database*'
})
const app = express();
const PORT = process.env.PORT || 3001;
require('dotenv').config();
app.use(cors());
app.use(express.json());
app.use(express.urlencoded());
//Routes
app.use('/auth', authRoutes);
app.get('/', (req, res) =>{
res.send('Server an')
})
//DB connection
//get from DB
app.get('/api/get', (req, res)=>{
const sqlSelect = 'SELECT * FROM anmeldungen';
connection.query(sqlSelect, (err, result)=>{
res.send(result);
if(err){
console.log('Error fetching from db');
}
});
})
//write to DB
app.use(bodyParser.urlencoded({extended: true}));
app.post('/api/insert', (req, res)=>{
const Student = req.body.Student;
const Fach = req.body.Fach;
//const Datum = req.body.Datum;
const Datum = new Date().toISOString().split('T')[0];
const DateiName = req.body.DateiName;
const Seite = req.body.Seite;
const Beschreibung = req.body.Beschreibung;
const sqlInsert = 'INSERT INTO anmeldungen(Student, Fach, Datum, DateiName, Seite, Beschreibung) VALUES(?,?,?,?,?,?)'
connection.query(sqlInsert, [Student, Fach, Datum, DateiName, Seite, Beschreibung], (err, result)=>{
console.log(result);
});
});
//delete from db
app.delete('/api/delete/:id', (req, res) =>{
const rowId = req.params.id;
const sqlDelete = "DELETE FROM anmeldungen WHERE id = ?";
connection.query(sqlDelete, rowId, (err, result)=>{
if(err) console.log(err);
})
})
//update rows in db
app.put('/api/update/:id', (req, res) =>{
const rowId = req.params.id;
const rowStat = req.body.Status;
const sqlUpdate = "UPDATE anmeldungen SET Status = ? WHERE id = ?";
connection.query(sqlUpdate, [rowStat, rowId], (err, result)=>{
if(err) console.log(err);
})
})
app.listen(PORT, () => console.log(`Server lauft auf port ${PORT}`));
auth.js:
const {connect} = require('getStream');
const bcrypt = require('bcrypt');
const StreamChat = require('stream-chat').StreamChat;
const crypto = require('crypto');
require('dotenv').config();
const api_key = process.env.STREAM_API_KEY;
const api_secret = process.env.STREAM_API_SECRET;
const app_id = process.env.STREAM_APP_ID;
const signup = async (req, res) => {
try {
//get from the front-end
const {fullName, username, password, phoneNumber} = req.body;
//create a random user Id: 16 digits in hexadecimal
const userId = crypto.randomBytes(16).toString('hex');
//connection to stream
const serverClient = connect(api_key, api_secret, app_id);
//create a password for the user token
const hashedPassword = await bcrypt.hash(password, 10);
//create token for the user
const token = serverClient.createUserToken(userId);
//get the values straight from the front-end to ensure secure authentication
res.status(200).json({token, fullName, username, userId, hashedPassword, phoneNumber})
} catch (error) {
console.log(error);
res.status(500).json({message: error});
}
};
const login = async(req, res) => {
try {
const {username, password} = req.body;
const serverClient = connect(api_key, api_secret, app_id);
//new instance of streamChat
const client = StreamChat.getInstance(api_key, api_secret);
//query all users that match this username
const {users} = await client.queryUsers({name: username});
if(!users.length) return res.status(400).json({message: 'Benutzername nicht gefunden.'});
//decrypt the password to see if it matches
const success = await bcrypt.compare(password, users[0].hashedPassword);
//create new token for this specific user's id.
const token = serverClient.createUserToken(users[0].id);
if(success){
res.status(200).json({token, fullName: users[0].fullName, username, userId: users[0].id});
} else {
res.status(500).json({message: 'falsches Kennwort'});
}
} catch (error) {
console.log(error);
res.status(500).json({message: error});
}
};
module.exports = {signup, login}
在auth.js文件中发现问题：我编写了const {connect} = require('getStream');而不是const {connect} = require('getstream');。所以我想这在某种程度上是由于命名约定@Chris ty，第一个问题是关于钱的。