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abort-request

v1.0.7

Published

自动取消过期请求

Downloads

7

Readme

自动取消过期的请求

使用方式

安装

npm i --save abort-request
  • 优化前默认版本:
import { watch, ref, unref } from 'vue';

// 请求方法
const getDataAPI = ({ params }: { params: { id: string } }) => {
    // 发起请求
};

const id = ref();
const detail = ref();

// 调用请求方法,handleQuery 可能多次调用,detail 数据是最新的吗?
const handleQuery = () => {
    getDataAPI({ params: { id: unref(id) } }).then((res) => {
        detail.value = res;
    });
};

watch(id, () => {
    handleQuery();
});

优化版本 - 避免竞态冲突,detail 总是最新值

import { createAutoAbortExpiredRequest, isAbortError } from 'abort-request';

// 请求方法
const getDataAPI = ({ params }: { params: { id: string } }) => {
    // 发起请求
};

const id = ref();
const detail = ref();

// 创建这个请求方法的自动取消版本
const getDataAPIAutoAbort = createAutoAbortExpiredRequest(getDataAPI);

const handleQuery = () => {
    // 使用 getDataAPIAutoAbort 替代 getDataAPI 进行调用,传参方式不变
    getDataAPIAutoAbort({ params: { id: unref(id) } }).then((res) => {
        // 当多次调用时,未完成的请求被自动取消,不会进入 then 逻辑
        detail.value = res;
    });
};

watch(id, () => {
    handleQuery();
});

避免阻塞浏览器 - 如果旧请求还未完成,就取消

XHR 和 Fetch 都支持传入 signal 用于中止请求,可以按照当前项目的封装方式,确定传入 signal 的方法,axios 配置参考:signal: new AbortController().signal

// 以 logan 为例
const getDataAPI = ({
    params,
    signal,
}: {
    params: { id: string };
    signal?: AbortSignal;
}) => {
    // 发起请求
};

const handleQuery = () => {
    // getDataAPIAutoAbort 可以接受一个函数作为参数,这个函数接受 signal 参数,组装好 signal 后,返回一个数组,用做请求参数
    getDataAPIAutoAbort(({ signal }) => [
        { params: { id: unref(id) }, signal },
    ]).then((res) => {
        // 当多次调用时,未完成的请求被自动取消,不会进入 then 逻辑
        detail.value = res;
    });
};

效果如下:

未完成的请求会被取消,新发起的请求会立即开始 abort request

处理 loading 状态

const handleQuery = () => {
    loading.value = true;
    getDataAPIAutoAbort(({ signal }) => [{ params: { id: unref(id) }, signal }])
        .then((res) => {
            // 当多次调用时,未完成的请求被自动取消,不会进入 then 逻辑
            detail.value = res;
            loading.value = false;
        })
        .catch((err) => {
            // 判断不是取消请求的错误
            if (!isAbortError(err)) {
                loading.value = false;
            }
        });

    // 不能在 finally 中处理 loading 状态
};