axios api封装

import axios from 'axios';
import qs from 'qs';

const host = 'url'
axios.defaults.baseURL = host;

// 发送之前做点什么
axios.interceptors.request.use(function (config) {
    const userId = Number(JSON.parse(sessionStorage.getItem("userId")))
    const token = sessionStorage.getItem("token")
    if (!userId) {
    }
    else if (config.method === 'post') {
        config.data = {
            ...config.data,
            userId,
            token
        }
        // console.log(config.data)
    } else if (config.method === 'get') {
        config.params = {
            ...config.params,
            userId,
            token
        }
    }
    return config
}, function (error) {
    // 对请求错误做些什么
    return Promise.reject(error);
});

//post
export const login = data => {
    return axios.post('xxx', data, {
        transformRequest: [(data) => {
            return qs.stringify(data)
        }],
    }).then((res) => {
        return Promise.resolve(res.data)
    }).catch((err) => {
        alert('错误')
    })
}

//get
export const getKeys = data => {
    return axios.get('xxx', {
        params: data
    }, {
            transformRequest: [(data) => {
                return qs.stringify(data)
            }],
        }).then((res) => {
            return Promise.resolve(res.data)
        }).catch((err) => {
            alert('错误')
        })
    }
}