全栈 Todolist-database 篇(Cloud MongoDB)

{
    "env": {
        "MONGO_USER": "your-username",
        "MONGO_PASSWORD": "your-password",
        "MONGO_DB": "your-db-name"
    }
}

{
    "env": {
        "MONGO_USER": "xxx", // 你配置的 username
        "MONGO_PASSWORD": "xxx", // 配置的 password 
        "MONGO_DB": "Cluster0"
    }
}

import express, { Express } from 'express';
import mongoose from 'mongoose';
import cors from 'cors';
import todoRoutes from './routes';
import bodyParser from 'body-parser';

const app: Express = express();

const PORT: string | number = 4000;
// const PORT: string | number = process.env.PORT || 4000;

console.log(process.env.PORT);

app.use(cors());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(todoRoutes);

const uri: string = `mongodb+srv://${process.env.MONGO_USER}:${process.env.MONGO_PASSWORD}@cluster0.4qpw4.mongodb.net/${process.env.MONGO_DB}?retryWrites=true&w=majority`;
// 这段 url 来自mongoDB cloud

const options = { useNewUrlParser: true, useUnifiedTopology: true };
mongoose.set('useFindAndModify', false);

mongoose
    .connect(uri, options)
    .then(() =>
        app.listen(PORT, () =>
            console.log(`Server running on http://localhost:${PORT}`)
        )
    )
    .catch((error) => {
        throw error;
    });

复制代码

yarn start