node-snap

Service-Oriented Node Asynchronus middleware

An easy-to-use event routing engine with interface stacks for nodejs

Extra features:

• provides powerfull Event Routing Engine
• Supports traditional programming apps
• Supports Finate state machine applications
• Interface Stacks to communicate with other applications
• Supports multiple databases like mysql, mssql

Installation

npm install nodesnap

Usage

var snap = require('nodesnap'); var app1 = require('SubscriberApp1');

var CONFIG_FILENAME = './conf/appconfig.json'; try { snap.init(CONFIG_FILENAME); snap.loadSubscriber(app1); } catch(e) { console.log('Error: '+e.stack); }

process.on('uncaughtException', function(err) { console.log(err.stack); });

/*this fucntion closes the traces files and records process's uptime when the process exits */ process.on('exit', function() { console.log ('Exiting ...'); console.log('process uptime : '+process.uptime()); snap.exit(); });

Configuration - JSON format

{ "CORE":{

	"TRACING"				:{"TRACELEVEL": "255", "MODE":"2"}		
},
"MODULES":[
			{"NAME": "dispclient",	           	 
					"LOAD": "yes", 
					"PARAMS": {"ROLE": "CLIENT", "PORT": 8000, "HOST": "127.0.0.1", "MSGTYPE": "JSON"}
				},	          
           	{"NAME": "tcpbasicstack",	           	 
           		"LOAD": "no", 
           		"PARAMS": {"ROLE": "CLIENT", "PORT": 8000, "HOST": "127.0.0.1", "MSGTYPE": "JSON"}
           	},	           	
           	{"NAME": "dbstack",
           		"LOAD": "NO", 
           		"PARAMS": {"DBTYPE": "MYSQL", "PORT": 3306, "HOST": "127.0.0.1", "DBNAME":	"testdb", "USERNAME": "testuser", "USERPWD":"test"}	           	
           	}
           ],
"SUBSCRIBERS":[
   {"NAME":"SubscriberApp1", "PARAMS":{"xyz":"abc"}},	   
   
]

}

Tools

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