在TypeScript项目中搭配Axios封装后端接口调用

export default class Global {
  static baseUrl = process.env.NEXT_PUBLIC_BASE_URL
}

/**
 * 登录信息
 */
export interface LoginProps {
  token: string
  username: string
  expiration: string
}

/**
 * 认证授权工具类
 */
export default abstract class Auth {
  static get storage(): Storage | null {
    if (typeof window !== 'undefined') {
      return window.localStorage
    }
    return null
  }

  /**
     * 检查是否已登录
     * @return boolean
     */
  public static isLogin() {
    let token = this.storage?.getItem('token')
    let userName = this.storage?.getItem('user')

    if (!token || token.length === 0) return false
    if (!userName || userName.length === 0) return false
    return !this.isExpired();
  }

  /**
     * 检查登录是否过期
     * @return boolean
     */
  public static isExpired = () => {
    let expiration = this.storage?.getItem('expiration')
    if (expiration) {
      let now = new Date()
      let expirationTime = new Date(expiration)
      if (now > expirationTime) return true
    }

    return false
  }

  /**
     * 读取保存的token
     * @return string
     */
  public static getToken = () => {
    return this.storage?.getItem('token')
  }

  /**
     * 保存登录信息
     * @param props
     */
  public static login = (props: LoginProps) => {
    this.storage?.setItem('token', props.token)
    this.storage?.setItem('user', props.username)
    this.storage?.setItem('expiration', props.expiration)
  }

  /**
     * 注销
     */
  public static logout = () => {
    this.storage?.removeItem('token')
    this.storage?.removeItem('user')
    this.storage?.removeItem('expiration')
  }
}

import axios, {AxiosInstance, AxiosRequestConfig, AxiosResponse, CreateAxiosDefaults} from "axios";
import Global from '@/utilities/global'
import Auth from "@/utilities/auth";

const config: CreateAxiosDefaults<any> = {
  method: 'get',
  // 基础url前缀
  baseURL: `${Global.baseUrl}/`,
  // 请求头信息
  headers: {
    'Content-Type': 'application/json;charset=UTF-8'
  },
  // 参数
  data: {},
  // 设置超时时间
  timeout: 10000,
  // 携带凭证
  withCredentials: true,
  // 返回数据类型
  responseType: 'json'
}

// 统一接口返回值
export interface ApiResponse {
  data: any
  errorData: any
  message: string
  statusCode: number
  successful: boolean
}

export class ApiClient {
  private readonly api: AxiosInstance
  constructor() {
    this.api = axios.create({
      ...config,
    })
    this.api.interceptors.request.use(
      config => {
        config.headers.Authorization = `Bearer ${Auth.getToken()}`
        return config
      },
      error => {
        return error
      })
    this.api.interceptors.response.use(
      response => {
        return response
      },
      error => {
        let reason = error
        if (error && error.response) {
          if (error.response.data) {
            reason = error.response.data
            if (!reason.message) reason.message = error.message
          }
          if (error.response.status === 401) {
            location.href = '/login'
          }
        }
        return Promise.reject(reason)
      }
    )
  }
  public request(options: AxiosRequestConfig): Promise<ApiResponse> {
    return new Promise((resolve, reject) => {
      this.api(options).then((res: AxiosResponse<ApiResponse>) => {
        resolve(res.data)
        return false
      }).catch(error => {
        reject(error)
      })
    })
  }
}
export const api = new ApiClient()
export default api

import {api} from './api'
export class SmsChannel {
  static local = 0
  static aliyun = 1
  static tencent = 2
}
export default abstract class CommonService {
  public static getSmsCode(phone: string, channel: number = SmsChannel.local) {
    return api.request({
      url: `api/common/getSmsCode`,
      params: {phone, channel}
    })
  }
}