nodejs读写redis和mongo

nodejs读写redis

https://redis.io/commands

https://www.npmjs.com/package/redis

var redis = require('redis');
var client = redis.createClient();

client.on('connect', function() {
    console.log('Redis client connected');
});

client.on('error', function (err) {
    console.log('Something went wrong ' + err);
});

client.set('my test key', 'my test value', redis.print);
client.get('my test key', function (error, result) {
    if (error) {
        console.log(error);
        throw error;
    }
    console.log('GET result ->' + result);
});

nodejs 读写mongo

https://github.com/bezkoder/node-express-mongodb

http://mongodb.github.io/node-mongodb-native/

const MongoClient = require('mongodb').MongoClient;
const assert = require('assert');

// Connection URL
const url = 'mongodb://localhost:27017';

// Database Name
const dbName = 'myproject';

// Create a new MongoClient
const client = new MongoClient(url);

// Use connect method to connect to the Server
client.connect(function(err, client) {
  assert.equal(null, err);
  console.log("Connected correctly to server");

  const db = client.db(dbName);

  // Insert a single document
  db.collection('inserts').insertOne({a:1}, function(err, r) {
    assert.equal(null, err);
    assert.equal(1, r.insertedCount);

    // Insert multiple documents
    db.collection('inserts').insertMany([{a:2}, {a:3}], function(err, r) {
      assert.equal(null, err);
      assert.equal(2, r.insertedCount);

      client.close();
    });
  });
});