微信小程序request请求封装，验签

//简单封装请求
function request(params, path, isShowLoading = true, goBack = false, type = 'none', obj={}) {
try {
console.log(path)
let NowTime = Date.parse(new Date()) / ;
let defaultParams = {
platform: app.globalData.platform,
appVersion: app.globalData.version,
deviceId: uuId(),
timestamp: params.timestamp ? params.timestamp : NowTime
}; params = Object.assign(params, defaultParams);
let requestParams = signature(params)
isShowLoading && wx.showLoading && wx.showLoading({
title: '加
中...'
})
return new Promise((resolve, reject) => {
let header;
obj.header = obj.header || {};
console.log('获取ptkey')
console.log(plugin.getJdListStorage(['guid', 'pt_key', 'pt_token', 'pt_pin']))
let [GUID = '', KEY = '', TOKEN = '', PIN = ''] = plugin.getJdListStorage(['guid', 'pt_key', 'pt_token', 'pt_pin']),
_cookie = `guid=${GUID}; pt_pin=${encodeURIComponent(PIN)}; pt_key=${KEY}; pt_token=${TOKEN};${wx.getStorageSync("accessToken_v1")}`, {
cookie
} = obj.header;
console.log(cookie)
obj.header.cookie = cookie ? `${cookie};${_cookie}` : _cookie;
if (!isEmpty(getToken())) {
obj.header.authorization = 'Bearer ' + getToken()
}
console.log(obj.header) wx.request({
url: getApp().globalData.host + path, //获取app.js 全局ip
data: requestParams,
method: 'POST',
header: obj.header,
success: function(res) {
console.log(res)
isShowLoading && wx.hideLoading && wx.hideLoading()
// 缺少登录失效的处理方法
if (res.statusCode == && res.data.code == ) {
if (isEmpty(res.data.data) || res.data.data == true) {
resolve('true')
return
}
if (res.data.data) {
resolve(res.data.data);
} else if (res.data.data == ){
resolve(res.data.data);
} else {
resolve('true')
}
} else if (res.statusCode == && res.data.code == ) { //token过期
Login();
resolve(false);
return;
} else {
//需要再判断code码
// errorShow(res.data.msg, goBack, type);
errorShow(res.data.msg);
resolve(false);
// reject(res.data.res);
}
},
fail: function(err) {
console.log(err)
// 因为hide会让showToast隐藏
isShowLoading && wx.hideLoading && wx.hideLoading()
errorShow('网络请求失败');
reject(new Error('Network request failed'))
// throw new Error('Network request failed')
},
complete: function() {}
})
})
} catch (err) {
console.log(err)
errorShow('网络请求失败');
return false;
}
}

//生成签名
function signature(params) {
let keyArr = []
for (let key in params) {
keyArr.push(key)
}
let arr = keyArr.sort();
let result = "";
arr.map((item, index) => {
if (params[item] == null || params[item] == undefined) {
delete params[item];
arr.splice(index, );
}
})
console.log("arr")
console.log(arr)
arr.map((item, index) => {
if (Array.isArray(params[item]) == true) {
let res = ''
let arr = params[item]
arr.map(obj => {
console.log(typeof(obj))
if (typeof(obj) != 'object') {
res += obj
} else {
for (let key in obj) {
if (Array.isArray(obj[key])) {
let val = '';
obj[key].map(item => {
val += item
})
res += key + val
} else {
res += key + obj[key]
}
}
}
})
result += '' + item + '' + res
} else {
result += '' + item + '' + params[item]
}
})
console.log("result")
console.log(result) let pos;
if (isEmpty(getToken())) {
pos = result
} else {
pos = result + getToken()
}
console.log(pos)
console.log("signature")
let signature = sha256.hmac.create('pos_secret').update(pos).hex().toLowerCase(); //需要引入sha256.min.js
console.log(signature)
let obj = {
'signature': signature
}
return Object.assign(params, obj);
}