MongoDB and mongoose All In One
MongoDB
$ xcode-select --install
$ brew tap mongodb/brew
$ brew update
$ brew install mongodb-community@7.0
The mongod server
The mongos sharded cluster query router
The MongoDB Shell, mongosh
https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x/
$ docker pull mongodb/mongodb-community-server
$ docker run --name mongo -d mongodb/mongodb-community-server:latest
# $ docker run --name mongo -d mongodb/mongodb-community-server:5.0-ubuntu2004
$ docker container ls
$ docker exec -it mongo mongosh
db.runCommand(
{
hello: 1
}
)
https://www.mongodb.com/docs/manual/tutorial/install-mongodb-community-with-docker/
https://www.runoob.com/mongodb/mongodb-databases-documents-collections.html
mongoose
const mongoose = require('mongoose');
const uri = 'mongodb+srv://username:badpw@cluster0-OMITTED.mongodb.net/' +
'test?retryWrites=true&w=majority';
mongoose.connect(uri, {
serverSelectionTimeoutMS: 5000
}).catch(err => console.log(err.reason));
// 可以使用 mongoose.connection 访问默认的连接实例
So far we've seen how to connect to MongoDB using Mongoose's default connection.
Mongoose creates a default connection when you call mongoose.connect().
You can access the default connection using mongoose.connection.
const conn = mongoose.createConnection('mongodb://[username:password@]host1[:port1][,host2[:port2],...[,hostN[:portN]]][/[database][?options]]', options);
const UserModel = conn.model('User', userSchema);
demos
import mongoose from "mongoose";
import autoIncrement from "mongoose-auto-increment";
export function dbConnection() {
try {
mongoose.connect("mongodb://0.0.0.0:27017", {
useNewUrlParser: true,
useUnifiedTopology: true,
});
// init autoIncrement ✅
autoIncrement.initialize(mongoose.connection);
console.log("DB connected successfully ");
} catch (error) {
console.log("Not connected ");
}
}
https://www.npmjs.com/package/mongoose-auto-increment
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refs
https://mongoosejs.com/docs/connections.html
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