axios全局和请求拦截器封装(单独拦截器)_axios全局拦截器

目录

主要代码已打注释，总代码包含全局和单独请求拦截器。封装报错解释可参考其他文章

axios全局拦截器：

 单独拦截器：

总代码： 

---

主要代码已打注释，总代码包含全局和单独请求拦截器。封装报错解释可参考其他文章

axios全局拦截器：

request/index

import axios from 'axios'
import type { AxiosInstance, AxiosRequestConfig } from 'axios'
import type { HYRequestInterceptors, HYRequestConfig } from './type'
 
class HYRequest {
  instance: AxiosInstance
  interceptors?: HYRequestInterceptors
 
  constructor(config: HYRequestConfig) {
    this.instance = axios.create(config)
    this.interceptors = config.interceptors
 
    // 从config中取出的拦截器是对应的实例的拦截器
    this.instance.interceptors.request.use(
      this.interceptors?.requestInterceptor,
      this.interceptors?.requestInterceptorCatch
    )
 
    this.instance.interceptors.response.use(
      this.interceptors?.responseInterceptor,
      this.interceptors?.responseInterceptorCatch
    )
 
    // 添加所有的实例都有的拦截器
    this.instance.interceptors.request.use(
      (config) => {
        console.log('所有实例都有的拦截器：请求拦截成功')
        return config
      },
      (err) => {
        console.log('所有实例都有的拦截器：请求拦截失败')
        return err
      }
    )
 
    this.instance.interceptors.response.use(
      (res) => {
        console.log('所有实例都有的拦截器：响应成功拦截')
        return res
      },
      (err) => {
        console.log('所有实例都有的拦截器：响应失败拦截')
        return err
      }
    )
  }
 
  request(config: AxiosRequestConfig) {
    this.instance.request(config).then((res) => {
      console.log(res)
    })
  }
}
 
export default HYRequest

request/type

import {
  InternalAxiosRequestConfig,
  AxiosResponse,
  AxiosRequestConfig
} from 'axios'
export interface HYRequestInterceptors {
  requestInterceptor?: (
    config: InternalAxiosRequestConfig
  ) => InternalAxiosRequestConfig
  requestInterceptorCatch?: (error: any) => any
  responseInterceptor?: (res: AxiosResponse) => AxiosResponse
  responseInterceptorCatch?: (error: any) => any
}
 
export interface HYRequestConfig extends AxiosRequestConfig {
  interceptors?: HYRequestInterceptors
}

 单独拦截器：

刚开始因为InternalAxiosRequestConfig和AxiosRequestConfig类型请求头不匹配。在传输时添加一个匹配的头就可以了

总代码： 

import axios from 'axios'
import type { AxiosInstance } from 'axios'
import type { HYRequestInterceptors, HYRequestConfig } from './type'
 
class HYRequest {
  instance: AxiosInstance
  interceptors?: HYRequestInterceptors
 
  constructor(config: HYRequestConfig) {
    this.instance = axios.create(config)
    this.interceptors = config.interceptors
 
    // 从config中取出的拦截器是对应的实例的拦截器
    this.instance.interceptors.request.use(
      this.interceptors?.requestInterceptor,
      this.interceptors?.requestInterceptorCatch
    )
 
    this.instance.interceptors.response.use(
      this.interceptors?.responseInterceptor,
      this.interceptors?.responseInterceptorCatch
    )
 
    // 添加所有的实例都有的拦截器
    this.instance.interceptors.request.use(
      (config) => {
        console.log('所有实例都有的拦截器：请求拦截成功')
        return config
      },
      (err) => {
        console.log('所有实例都有的拦截器：请求拦截失败')
        return err
      }
    )
 
    this.instance.interceptors.response.use(
      (res) => {
        console.log('所有实例都有的拦截器：响应成功拦截')
        return res
      },
      (err) => {
        console.log('所有实例都有的拦截器：响应失败拦截')
        return err
      }
    )
  }
 
  request(config: HYRequestConfig) {
    if (config.interceptors?.requestInterceptor) {
      config = config.interceptors.requestInterceptor(config)
    }
    this.instance.request(config).then((res) => {
      if (config.interceptors?.responseInterceptor) {
        res = config.interceptors.responseInterceptor(res)
      }
      console.log(res)
    })
  }
}
 
export default HYRequest