小程序请求Promise简单封装

最近做小程序在调用后台接口的时候感觉总写很长一串，很冗杂。非常想念vue中promise封装的写法，于是自己初步封装了一下。

1.url 接口地址

2.headers请求头

3. params 请求参数

4.host 服务端地址

POST:

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17 export function httpPost(url, params,params,) {
let promise = new Promise((resolve, reject) => {
wx.request({
url: host + url,
header: headers ? headers : { "content-type": "application/json" },
data: params,
method: "POST",
success: function(res) {
resolve(res);
},
fail: err => {
reject(err);
}
});
});
return promise;
}

GET:

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27 export function httpGet(url, params, headers) {
let paramsStr = url;
let num = 0;
// 将params对象转换成字符串
for (let i in params) {
if (num < 1) {
paramsStr += `?${i}=${params[i]}`;
} else {
paramsStr += `&${i}=${params[i]}`;
}
num++;
}
let promise = new Promise((resolve, reject) => {
wx.request({
url: host + paramsStr,
header: headers ? headers : { "content-type": "application/json" },
method: "GET",
success: function(res) {
resolve(res);
},
fail: err => {
reject(err);
}
});
});
return promise;
}