Implementation of Vue3+TypeScript encapsulate axios and make request calls

// 
import axios, { AxiosRequestConfig, AxiosResponse } from 'axios'
import { ElMessage } from "element-plus"

const showStatus = (status: number) => {
  let message = ''
  switch (status) {
    case 400:
      message = 'Request error(400)'
      break
    case 401:
      message = 'Unauthorized，Please log in again(401)'
      break
    case 403:
      message = 'access denied(403)'
      break
    case 404:
      message = 'Request error(404)'
      break
    case 408:
      message = 'Request timeout(408)'
      break
    case 500:
      message = 'Server Error(500)'
      break
    case 501:
      message = 'Service not implemented(501)'
      break
    case 502:
      message = 'Network error(502)'
      break
    case 503:
      message = 'Service not available(503)'
      break
    case 504:
      message = 'Network timeout(504)'
      break
    case 505:
      message = 'HTTPVersion not supported(505)'
      break
    default:
      message = `There was an error in connection(${status})!`
  }
  return `${message}，Please check the network or contact the administrator！`
}

const service = ({
  // Joint commissioning  // baseURL: .NODE_ENV === 'production' ? `/` : '/api',
  baseURL: "/api",
  headers: {
    get: {
      'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8'
    },
    post: {
      'Content-Type': 'application/json;charset=utf-8'
    }
  },
  // Whether to cross-site access control requests  withCredentials: true,
  timeout: 30000,
  transformRequest: [(data) => {
    data = (data)
    return data
  }],
  validateStatus() {
    // Using async-await, it is more cumbersome to handle reject, so all return resolve and handle exceptions in business code    return true
  },
  transformResponse: [(data) => {
    if (typeof data === 'string' && ('{')) {
      data = (data)
    }
    return data
  }]
  
})

// Request an interceptor((config: AxiosRequestConfig) => {
  //Get the token and add it to the request header  let token = ('token')
  if(token){
     = `${token}`;
  }
  return config
}, (error) => {
  // Error thrown to business code   = {}
   = 'The server is abnormal, please contact the administrator!  '
  return (error)
})

// Response Interceptor((response: AxiosResponse) => {
  const status = 
  let msg = ''
  if (status < 200 || status >= 300) {
    // Handle http errors and throw them into business code    msg = showStatus(status)
    if (typeof  === 'string') {
       = { msg }
    } else {
       = msg
    }
  }
  return response
}, (error) => {
  if ((error)) {
    ('repeated request: ' + )
  } else {
    // handle error code
    // Error thrown to business code     = {}
     = 'Request timeout or server exception, please check the network or contact the administrator!  '
    ()
  }
  return (error)
})

export default service

// 
import axios, { AxiosRequestConfig, AxiosResponse } from 'axios'
import qs from "qs"
import { ElMessage } from "element-plus"

// Declare a Map to store the ID and cancel function for each requestconst pending = new Map()
/**
  * Add a request
  * @param {Object} config
  */
const addPending = (config: AxiosRequestConfig) => {
  const url = [
    ,
    ,
    (),
    ()
  ].join('&')
   =  || new (cancel => {
    if (!(url)) { // If the current request does not exist in pending, add it      (url, cancel)
    }
  })
}
/**
  * Removal request
  * @param {Object} config
  */
const removePending = (config: AxiosRequestConfig) => {
  const url = [
    ,
    ,
    (),
    ()
  ].join('&')
  if ((url)) { // If the current request identifier exists in pending, the current request needs to be cancelled and removed    const cancel = (url)
    cancel(url)
    (url)
  }
}

/**
  * Clear the request in pending (called when the route jumps)
  */
export const clearPending = () => {
  for (const [url, cancel] of pending) {
    cancel(url)
  }
  ()
}

// Request an interceptor((config: AxiosRequestConfig) => {
  removePending(config) // Before the request starts, check and cancel the previous request  addPending(config) // Add the current request to pending  let token = ('token')
  if(token){
     = `${token}`;
  }
  return config
}, (error) => {
  // Error thrown to business code   = {}
   = 'The server is abnormal, please contact the administrator!  '
  return (error)
})

// Response Interceptor((response: AxiosResponse) => {

  removePending(response) // After the request is completed, remove this request  const status = 
  let msg = ''
  if (status < 200 || status >= 300) {
    // Handle http errors and throw them into business code    msg = showStatus(status)
    if (typeof  === 'string') {
       = { msg }
    } else {
       = msg
    }
  }

  return response
}, (error) => {
  if ((error)) {
    ('repeated request: ' + )
  } else {
    // handle error code
    // Error thrown to business code     = {}
     = 'Request timeout or server exception, please check the network or contact the administrator!  '
    ()
  }
  return (error)
})

export default service

import { createRouter, createWebHistory, RouteRecordRaw } from 'vue-router'
import Login from '@/views/Login/'
//Introduce the clearPending function exposed in axiosimport { clearPending } from "@/api/axios"

....
....
....

const router = createRouter({
  history: createWebHistory(.BASE_URL),
  routes
})

((to, from, next) => {
  //Clear all requests before jumping the route  clearPending()
  // ...
  next()
})

export default router

// Interface response through formatexport interface HttpResponse {
  status: number
  statusText: string
  data: {
    code: number
    desc: string
    [key: string]: any
  }
}

import Axios from './axios'
import { HttpResponse } from '@/@types'
/**
  * @interface loginParams -Login parameters
  * @property {string} username -username
  * @property {string} password -user password
  */
interface LoginParams {
  username: string
  password: string
}
//Encapsulation of User type interface methodexport class UserService {
  /**
    * @description Query User's information
    * @param {number} teamId - the team ID to be queryed
    * @return {HttpResponse} result
    */
  static async login(params: LoginParams): Promise<HttpResponse> {
    return Axios('/api/user', {
      method: 'get',
      responseType: 'json',
      params: {
        ...params
      },
    })
  }

  static async resgister(params: LoginParams): Promise<HttpResponse> {
    return Axios('/api/user/resgister', {
      method: 'get',
      responseType: 'json',
      params: {
        ...params
      },
    })
  }
}

<template>
     <input type="text" v-model="Account" placeholder="Please enter your account" name="username" >
     <input type="text" v-model="Password" placeholder="Please enter your password" name="username" >
     <button @="handleRegister()">Log in</button>
</template>
<script lang="ts">
import { defineComponent, reactive, toRefs } from 'vue'
//Introduce interfaceimport { UserService } from '@/api/user'

export default defineComponent({
  setup() {
    const state = reactive({
      Account: 'admin', //Account      Password: 'hhhh', //password    })

    const handleLogin = async () => {
      const loginParams = {
        username: ,
        password: ,
      }
      const res = await (loginParams)
       (res)
    }

    const handleRegister = async () => {
      const loginParams = {
        username: ,
        password: ,
      }
      const res = await (loginParams)
      (res)
    }
    return {
      ...toRefs(state),
      handleLogin,
      handleRegister 
    }
  },
})
</script>