http.js

const service = axios.create({
        baseUrl: "//apixh-beta.17win.com", // window.xhHost["solar-api"], // "apixh-beta.17win.com",
        timeout: 5000
    })
service.interceptors.request.use(
    config => {
        //...
    },
    err => {
        //...
    }
)
// ...
export default service

api.js

import Http from "@/http"

export default {
    getData (params) {
        console.log("get my cert...")
        return Http({url:"/api/XXX", method: "get", params})
    }}

home.js

  import Service from "@/api.js"

  Service.getMyCert({}).then(response => {}) // request URL: http://localhost:3000/api/xxx

axios.create sets baseUrl, but the actual requested baseUrl is still localhost:3000/api/xxx