Taro@3.x+Vue@3.x+TS开发微信小程序，网络请求封装

参考文档

• Taro.request(option)

在 src/http 下创建 request.ts, 写入如下配置：

import Taro from '@tarojs/taro'
import { encryptData } from './encrypt'

console.log('NODE_ENV', process.env.NODE_ENV)
console.log('TARO_APP_PROXY', process.env.TARO_APP_PROXY)
const baseUrl = process.env.TARO_APP_PROXY

interface RequestParams {
  url: string
  method: 'OPTIONS'|'GET'|'HEAD'|'POST'|'PUT'|'PATCH'|'DELETE'|'TRACE'|'CONNECT'
  data: any
  header?: any
  timeout?: number
  loadingTitle?: string
  [key: string]: any
}
export function request (params: RequestParams) {
  const { url, method, data, header, args: { timeout = 6000, loadingTitle = '' } } = params
  Taro.showLoading({
    title: loadingTitle,
    mask: true
  })
  return new Promise((resolve, reject)=>{
    Taro.request({
      data: encryptData(data, method),
      url: baseUrl + url,
      method: method,
      timeout: timeout,
      header: {
        'content-type': 'application/json;charset=UTF-8,text/plain,*/*',
        ...header
      },
      success: (res) => { // 接口调用成功的回调函数
        console.log('success', res)
        // 具体根据后端接口返回数据接口进行resolve和reject
        if (res.data.message.code === 0) {
          resolve(res.data.data)
        } else {
          console.log('message', res.data.message.message)
          showError(res.data.message.message)
          reject({ message: res.data.message.message })
        }
      },
      fail: (res) => {
        console.log('fail', res)
        showError('请求失败')
        reject({ fail: res })
      },
      complete: (res: any) => { // 接口调用结束的回调函数（调用成功、失败都会执行）
        console.log('complete', res)
        Taro.hideLoading()
      }
    }).catch(e => {
      console.log('catch err', e)
      showError(e.errMsg)
    })
  })
}
function showError (message: string) {
  Taro.showToast({
    title: message,
    icon: 'none', // 'error' 'success' 'loading' 'none'
    duration: 2000
  })
}

在 src/http 下创建 index.ts 并导出通用请求：

import { request } from '@/http/request'

export function getAction (url: string, parameter: any, args = {}) {
  return request({
    url: url,
    method: 'GET',
    data: parameter,
    args: args
  })
}
export function postAction (url: string, parameter: any, args = {}) {
  return request({
    url: url,
    method: 'POST',
    data: parameter,
    args: args,
    header: {
      'Content-Type': 'application/x-www-form-urlencoded'
    }
  })
}

在页面内进行网络请求

<script setup lang="ts">
import { ref } from 'vue'
import Taro, { useLoad, usePullDownRefresh } from '@tarojs/taro'
import { getAction } from '@/http/index'

const url = {
  detail: '/api/detail'
}
const detailData = ref()
useLoad(() => {
  getDetail()
})
usePullDownRefresh(async () => {
  await getDetail()
  Taro.stopPullDownRefresh()
})
function getDetail () {
  getAction(url.detail, { id: 1 }).then((res: any) => {
    console.log('detail', res)
    detailData.value = res.data
  }).catch((err) => {
    console.log('err', err)
  })
}
</script>