shop-app/common/utils/requset.js

/*
 * @Author: ch
 * @Date: 2022-03-17 17:42:32
 * @LastEditors: ch
 * @LastEditTime: 2022-04-22 16:37:06
 * @Description: 项目接口请求统一处理器，返回一个需要token和不需要token的请求封装方法
 */

import MsbUniRequest from '@/common/plugins/msbUniRequest';
import $store from '@/common/store';

const ENV = 'test';
const BASE_URL = {
	'test' : 'https://k8s-horse-gateway.mashibing.cn',
	// 'test' : '',
	'release' : '',
	'prod' : ''
};
/**
 * 接口返回成功结果统一处理
 * @param {*} response 
 * @param {*} option 
 */
const successIntercept = (response, option) =>{
	clearRepeat(option)
	if(response.statusCode === 200){
		const result = response.data;
		if(result.code === 'SUCCESS'){
			return result.data;
		}
		if(result.code === 'TOKEN_EXPIRE'){
			uni.navigateTo({url : '/login'})
			return result;
		}
		return Promise.reject(result);
	}
	return response;
}
/**
 * 接口返回错误结果统一处理
 * @param {*} error 
 * @param {*} option 
 */
const errorIntercept = (error, option) =>{
	clearRepeat(option)
	return {message:error.errMsg,code:error.statusCode}
}

//正在执行的请求标识 
let repeatFlag = [];
/**
 * 验证是否重复请求，没有则添加一条到标记
 * @param {*} option 
 */
const repeatVerify = (option)=>{
	let flag = {
		url : option.url,
		method : option.method,
		data : option.data
	}
	if(repeatFlag.includes(JSON.stringify(flag))){
		return Promise.reject({message:'请勿频繁操作'});
	}
	repeatFlag.push(JSON.stringify(flag));
	return false;
};
/**
 * 清除请求标记
 * @param {*} option 
 */
const clearRepeat = (option) =>{
	repeatFlag = repeatFlag.filter( i => {
		return i !== JSON.stringify({
			url : option.url,
			method : option.method,
			data : option.data
		})
	});
}

// 不需要token的接口封装
const MsbRequest = new MsbUniRequest();
MsbRequest.baseUrl = BASE_URL[ENV];

MsbRequest.use('request', (option) => {
	if(option.header.repeat){
		// 如果当前请求不允许重复调用，则检查重复请求，当前接口有正在请求则不发起请求
		const isRepeatVerify = repeatVerify(option);
		if(isRepeatVerify){
			return isRepeatVerify;
		}
	}
	return option;
})
MsbRequest.use('success', successIntercept);
MsbRequest.use('error', errorIntercept);



// 需要token的接口封装
const MsbRequestTk = new MsbUniRequest();
MsbRequestTk.baseUrl = BASE_URL[ENV];

MsbRequestTk.use('request', (option) => {
	const token = $store.state.token;
	if(!token){
		// 登录状态处理，没有token直接跳转至登录
		const pages = getCurrentPages();
		const page = pages[pages.length - 1];
		page.$Router.replace('/login');
		return Promise.reject({message:'要先登录才能操作哦~'});
	}else{
		option.header = {...option.header, Authorization:token};
		
		if(option.header.repeat){
			// 如果当前请求不允许重复调用，则检查重复请求，当前接口有正在请求则不发起请求
			const isRepeatVerify = repeatVerify(option);
			if(isRepeatVerify){
				return isRepeatVerify;
			}
		}
		return option;
	}
})
MsbRequestTk.use('success', successIntercept);
MsbRequestTk.use('error', errorIntercept);

export {
	MsbRequest,
	MsbRequestTk
}