- Advantages
- High productivity by using the same language in both FE and BE
- Easy to implement WebSocket using socket.io
- Node.js uses non-blocking IO model; IO processing in
- Disadvantages
- Single thread model:
- If one job takes time, it impacts the overall system performance
- Hard to optimize using CPU in multi core system; requires cluster
- Node.js Install
- sudo dnf install nodejs
- node -v
- update:
- sudo npm cache clean -f
- sudo npm install -g n
- sudo n stable
- sudo n latest
- sudo ln -sf /usr/local/n/versions/node/x.x.x/bin/node /usr/bin/node
- node -v
- sudo dnf install npm
- sudo npm install npm@latest -g
- npm -v
- Express install
- npm init
- npm install express --save
- npm install body-parser --save : to process json, etc
- npm install cookie-parser --save
- npm install multer --save : to process multi-post form
- Swagger
- npm install -g swagger
- cd /usr/local/bin
- ln -s /usr/local/n/versions/node/7.9.0/bin/swagger
- example:
- https://scotch.io/tutorials/speed-up-your-restful-api-development-in-node-js-with-swagger
- file upload:
- http://swagger.io/docs/specification/file-upload/
- MongoDB
- dnf install mongod mongodb-server mongo-tools
- systemctl start/enable mongod
- for specific versions:
- vi /etc/yum.repos.d/mongodb.repo
[mongodb-org-2.6]
name=MongoDB Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1
[mongodb-org-3.4]name=MongoDB Repositorybaseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.4/x86_64/gpgcheck=1enabled=1gpgkey=https://www.mongodb.org/static/pgp/server-3.4.asc
- sudo dnf install mongodb-org mongodb-org-server
- sudo systemctl start/enable mongod
- mongostat or mongostat --rowcount 5 2
- command line: mongo
- config: /etc/mongod.conf
- npm install mongoose --save
- Rock mongo
- sudo yum install httpd gcc php php-gd php-pear php-devel openssl-devel unzip wget
- If you use Fedora 25, you need to downgrade PHP 7.0 to PHP 5.6 before going to the next steps:
- dnf remove php
- wget https://rpms.remirepo.net/fedora/remi-release-25.rpm
- rpm -Uvh remi-release-25.rpm
- dnf --enablerepo=remi install php56 php56-php-common php56-php-cli php56-php-mbstring php56-php-mcrypt php56-php-pear php56-php-xml php56-runtime php56-php-mysqlnd php56-php-devel php56-php-fpm
- module load php56
- systemctl restart httpd
- cd /etc
- ln -s /opt/remi/php56/root/etc/php.ini
- sudo pecl install mongo
- sudo vi /etc/php.ini
- extension=mongo.so
- sudo systemctl restart httpd
- php -m | grep -i mongo
- If you use Fedora 25, you need to downgrade PHP 7.0 to PHP 5.6 before going to the next steps:
- systemctl enable php56-php-fpm
- systemctl start php56-php-fpm
- wget https://github.com/iwind/rockmongo/archive/master.zip
- unzip master.zip
- sudo mv rockmongo-master/ /var/www/html/rockmongo
- sudo systemctl restart httpd
- Unable to connect MongoDB, please check your configurations. MongoDB said:Failed to connect to: 127.0.0.1:27017: Permission denied.
- /usr/sbin/setsebool -P httpd_can_network_connect 1
- service httpd restart
- PM2
- npm install pm2 -g
- pm2 start app.js
- pm2 monit
- pm2 list
- pm2 stop
- pm2 restart
- pm2 delete
- pm2 logs
- Jade
- http://html2jade.aaron-powell.com/
