weixin-node

微信(wechat)签名等后端接口封装(nodejs)

USAGE

• getToken

通过 appid 和 secret 获取 access_token

+ **appid**
+ **secret**
+ expires_in 强制指定缓存时间(默认缓存 7200 秒)
+ update 是否强制服务端更新缓存

return

{ access_token: 'yqtqCpfmJOnbJM6i2_JeWK_-r28jvIgO0Pzk66IXpFXRKVqrrDoqCXrOE4G1wgGiSERMKQ2qTH7l9xwDD1O--bxxLh8ahXbgrhx67o4qUZ0',
  expires_in: 7200 }

• getTicket

通过 access_token 获取 ticket

+ **access_token**
+ expires_in 强制指定缓存时间(默认缓存 7200 秒)
+ update 是否强制服务端更新缓存

return

{ errcode: 0,
  errmsg: 'ok',
  ticket: 'sM4AOVdWfPE4DxkXGEs8VDsWI7B-faDW7RPMNI7CBMYBwrOO_HqeX3cazP-FRv1zclArJLDw2_0WQA604Sc-GA',
  expires_in: 7200 }

• sign

微信官方签名算法

+ **ticket**
+ **url**

return

{ jsapi_ticket: 'sM4AOVdWfPE4DxkXGEs8VDsWI7B-faDW7RPMNI7CBMYBwrOO_HqeX3cazP-FRv1zclArJLDw2_0WQA604Sc-GA',
  nonceStr: '564m6gkt2dbwqao',
  timestamp: '1426509920',
  url: 'http://weixin.com',
  signature: 'fd0079efb712acfdcc0a398b85c74102f1cd1ef1' }

example

simple

var weixin = require('.')
var co = require('co')

co(function *(){
  var token = yield weixin.getToken('wx0e9ccf43c71f8bab', 'd97eb68dc872c9c940d96a1e55c2d7a3')
  console.log('token:', token)

  var ticket = yield weixin.getTicket(token.access_token)
  console.log('ticket:', ticket)

  var sign = yield weixin.sign(ticket.ticket, 'http://weixin.com')
  console.log('sign:', sign)
})

sign a url, just need appid + secret

function *() {
  var query = this.query
  var token = yield weixin.getToken(query.appid, query.secret, query.expires_in, query.update)

  if(token.errcode) return this.body = token

  var ticket = yield weixin.getTicket(token.access_token)

  if(ticket.errcode !== 0) return this.body = ticket

  var result = weixin.sign(ticket, query.url)
  result.appId = query.appid
  this.body = result
}