This is a key&value storage library, which uses file system to store data.
$ npm install filekv -g
var filekv = require('filekv');
var filekvClient = filekv.create({
//Here is your datafile dir!
//!!!This config item not have default value!!!
fileDir:__dirname+'/data',
//This number can't greater than your OS open file max number!
//This config item default is 1000
workMax:1000
});
filekvClient.set('userinfo',{name:'wzy',sex:1,github:'http://www.github.com/zenboss'},3600,function(err){
console.log(err);
});
filekvClient.get('userinfo',function(err,data){
console.log(err,data);
});
filekvClient.has('userinfo',function(err,isHas){
console.log(err,isHas);
});
filekvClient.del('userinfo',function(err){
console.log(err);
});
Use this function setting a key&value
Use this function get a key&value
Use this function check a key exist
Use this function delete a key
Note: 1.If the key not exist, the api will be create the key&value. 2.If the key already exist, the api callback function's the 1st variable will is Error object
Note: 1.If the key already exist, the api will be replace the key's value. 2.If the key not exist, the api callback function's the 1st variable will is Error object
When you use "set" api setting a key&value, it will emit 'set' event.
filekvClient.on('set',function(input,output){
// The "input" variable is "set" api's arguments object
// The "output" variable is "set" api's callback function's callback variable.
});
When you use "get" api get a key&value, it will emit 'get' event.
filekvClient.on('get',function(input,output){
// The "input" variable is "get" api's arguments object
// The "output" variable is "get" api's callback function's callback variable.
});
When you use "add" api to create a was not exist key&value, it will emit 'add' event.
filekvClient.on('add',function(input,output){
// The "input" variable is "add" api's arguments object
// The "output" variable is "add" api's callback function's callback variable.
});
When you use "replace" api to replace a already exist key's new value, it will emit 'replace' event.
filekvClient.on('replace',function(input,output){
// The "input" variable is "replace" api's arguments object
// The "output" variable is "replace" api's callback function's callback variable.
});
When your use "del"/"delete" api delete a key&value in your store, it will emit 'delete' event.
filekvClient.on('delete',function(input,output){
// The "input" variable is "del"/"delete" api's arguments object
// The "output" variable is "del"/"delete" api's callback function's callback variable.
});