#This is a function from Moonlight #Quick Start ##install npm install mn_fun_comm_v2 --save ##Basic Usage

##string

###trimAllBlank

参数：str

去掉str前后的空格

return : [err,trimStr] :错误或去掉空格后的 string

example

const [err,trimStr] = string.trimAllBlank(str);

###hasMobilePhone

参数：str

判断str是不是一个手机号码。如果是返回true,否则返加false

example

const [err,has]= string.hasMobilephone(mobile);

###firstLowerCase

参数:str

把str的第一个字母小写。

example

const[err,firstLowerCaseString] = string.firstLowerCase(str)

###getNonce

param len

returns {[null,number]}

example

const com = require('mn_fun_comm_v2');
const string = com.string;
const [err,nonce] = string.getNonce(10);

###getRandChar

param len {integer } must > 1

return getRandChar - rand char , len digit

example

const [err,str] = string.getRandChar(16);

##crypto ###aes ####encrypto

加密方法

param data 需要加密的数据 encoding:utf8

param key 加密key

param iv 向量

returns string format:base64

var encrypted = encrypto (data,key,iv);

####encryptoPkcs7

输入buf 对buffer 进行pkcs7方式进行补位，然后进行aes -256- cbc 方式 进行加密 param bufData param key - 加密Key param iv - 矢量 returns crypted 加密后的字符串base64编码。 example:

const com =  require('mn_fun_comm');
const encrypto = com.crypto.aes.encryptoPkcs7;
const encrypted1 = encrypto(buf,bAesKey,bIv);

####decrypto

解密方法

param crypted 密文 format: base64

param key 解密的key

param iv 向量 *

returns string format:utf8

example

var decrypted = decrypto (crypted,key,iv);

####decryptoPkcs7 输入buffer , 对buffer 进行AES解密，然后按pkcs7方式支除补位 param encrypted {buffer} -需要解的buffer param key param iv returns 如果解密过程发生错误，返回错误，如果没有错误发生，err 为null, 返回正确的buf{buffer} example:

const decrypto= com.crypto.aes.decryptoPkcs7;
const com =  require('mn_fun_comm');
const [err,buf] =decrypto(encrypted,bAesKey,bIv);
    if (err) {
        return console.log(err);
    }
console.log(buf);

###md5 module md5 - the result is UperCase

param input - need to be md5

param callback

returns callback - (err,output)

example

md5(input,function(err,output){
    ......
};

###sha ####sha1 param content - Need to sha1

returns d {string} - Returns the result of sha1

example

var encryped = sha (content);

##http or https

httpx include http and https,such as:

const com= require("mn_fun_comm_v2");

const Http = com.Http;

const Https = com.Https;

const http= new Http();

const https= new Https();

https.get(...)  or http.get(...)

###get

param host - such as qyapi.weixin.qq.com

param path - such as /cgi-bin/uer/get?access_token=ACCESS_TOKEN ......

param data_callback

example

httpx.get(host,path,function(err,result){
      ......
});

###post

param host - Such as qyapi.weixin.qq.com

param uri - Such as /cgi-bin/uer/get?access_token=ACCESS_TOKEN ......

param content

param callback

example

var host = "qyapi.weixin.qq.com";
var url = "/cgi-bin/user/create?access_token=" + access_token;
var content=JSON.stringify(data);
httpx.post (host,path,content,function(err,result){
    ......
});

###File.download

down a file from the url, and save it in the dir

param url {string} such as : http://www...........output.jpg

param dir {string} - the dir you want to save this file

param fileName {string} - the file name you want to save

example

const com= require("mn_fun_comm_v2");

const File= com.File;

const file= new File();

file.download(url,(err,result) => {  } );

##Mongodb

###Method insert

options 为数据库的参数，如下样例：

const options = {
    url :  "mongodb://localhost:27017",
    dbName : "booklist",
    collectionName : "booklist"
};

document 为要插入的文档，如下样例：

const  document = {
    corpId : "123456789" ,
    user : "menghuiqiang2" ,
    content:content ,
    trimContent: trim(content) ,
    timestamp :  Date.now()
};


mongodb.setOptions(options);

mongodb.insert(document,(err,result) => {
    if (err) {
        conssole.log(err);
    }
    console.log(result);
});

###Method find

whereStr为查询条件，样例如下：

const whereStr= {trimContent:/孟会强/};

mongodb.find(whereStr,(err,result) => { if (err) {conssole.log(err)} console.log(result);

})

###Method findSort

sortStr为排序条件，样例如下：

mongodb.findSort(wheereStr,sortStr,(err,result) => {
    if (err) {conssole.log(err)}
    console.log(result);

});

###Method Aggregate

const aggregateArray = [{$sort:{user:-1,timestamp:1}},{$group:{_id:"$user",content:{$first:"$content"},timestamp:{$first:"$timestamp"}}}];

mongodb.aggregate(aggregateArray,(err,result) => {
    if (err) {
        conssole.log(err);
    }
    console.log(result);
});

##Redis

var com = require('mn_fun_comm_v2');
var redis =com.redis;

####set_key: redis.setex_key(key,seconds,value); //Such as redis.setex_key(key,7200,access_token); // 7200seconds

//put value in redis by key_name key, expire time seconds.

####get_key: get a value from redis by the key_name key, the value callback in the result.

if result is NULL, is means that there is not a vaule in redis by the key_name key.

Such as:

redis.getkey(key,function(err,result){
   ......
});

####expire_time

设置Key的过期时间，为秒为单位。

Such as:

redis.getkey(key,seconds);

##time ###format_time ####formatDate param timeMs - Input mileSeconds from 1970-1-1 00:00:00 returns {string}- Such as :2018-06-21 example

const [err,date] = time.formatDate(timeMs);

date 输出 :2018-06-21

###formatTime param timeMs - Input mileSeconds from 1970-1-1 00:00:00 returns {string}- Such as :2018-06-21 12:34:05 example

const [err,time] = formatTime(timeMs);

###Timestamp 返回当前时间的秒数或毫秒数 example

time.timestampMs();    //返回毫秒 mileSeconds from 1970-1-1 00:00:00
time.timestampS();     //返回秒数 Seconds from 1970-1-1 00:00:00