react+ ts vite搭建及二次封装请求的过程解析

目录 1.搭建项目 2.下载axios 3.创建http文件夹下index.ts

1.搭建项目

npm create vite

2.下载axios

npm install axios 

打开项目创建基本项目结构

3.创建http文件夹下index.ts

引入axios

import axios, {
  AxiosResponse,
  AxiosInstance,
  InternalAxiosRequestConfig,
} from "axios";

重新创建axios

const instance: AxiosInstance = axios.create({
  baseURL:
  	// vite 环境变量判断
    import.meta.env.MODE === "development"
      ? "/api"
      : import.meta.env.VITE_APP_BASE_URL,
  timeout: 10000,
});

创建拦截器

instance.interceptors.request.use((config: InternalAxiosRequestConfig) => {
  //进行特殊请求操作
  return config;
});

instance.interceptors.response.use((response: AxiosResponse) => {
  return response.data;
});

封装请求方法

export function get<T>(
  url: string,
  params?: CustomObject,
  config?: CustomObject
): Promise<ResultData> {
  return instance.get(url, { params, ...config });
}

export function post<T>(
  url: string,
  params?: CustomObject,
  config?: CustomObject
): Promise<ResultData> {
  return instance.post(url, params, config);
}

export function put<T>(
  url: string,
  params?: CustomObject,
  config?: CustomObject
): Promise<ResultData> {
  return instance.put(url, params, config);
}

导出

export default instance;

完整代码

// http/index.ts

import axios, {
  AxiosResponse,
  AxiosInstance,
  InternalAxiosRequestConfig,
} from "axios";
const instance: AxiosInstance = axios.create({
  baseURL:
    import.meta.env.MODE === "development"
      ? "/api"
      : import.meta.env.VITE_APP_BASE_URL,
  timeout: 10000,
});

instance.interceptors.request.use((config: InternalAxiosRequestConfig) => {
  //进行特殊请求操作
  return config;
});

instance.interceptors.response.use((response: AxiosResponse) => {
  return response.data;
});

export function get<T>(
  url: string,
  params?: CustomObject,
  config?: CustomObject
): Promise<ResultData> {
  return instance.get(url, { params, ...config });
}

export function post<T>(
  url: string,
  params?: CustomObject,
  config?: CustomObject
): Promise<ResultData> {
  return instance.post(url, params, config);
}

export function put<T>(
  url: string,
  params?: CustomObject,
  config?: CustomObject
): Promise<ResultData> {
  return instance.put(url, params, config);
}

export default instance;

使用

// api.ts
import { get, post } from "http/index";

// 文章列表
export const blogList = (data: CustomObject): Promise<ResultData> =>
  get("/api/posts", data);

原文地址：https://blog.csdn.net/pakhozou/article/details/129555541

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