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import type { AxiosRequestConfig } from 'axios'
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// 用于存储每个请求的标识和取消函数
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const pendingMap = new Map<string, AbortController>()
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const getPendingUrl = (config: AxiosRequestConfig): string => {
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return [config.method, config.url].join('&')
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}
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export class AxiosCanceler {
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/**
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* 添加请求
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* @param config 请求配置
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*/
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public addPending(config: AxiosRequestConfig): void {
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this.removePending(config)
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const url = getPendingUrl(config)
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const controller = new AbortController()
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config.signal = config.signal || controller.signal
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if (!pendingMap.has(url)) {
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// 如果当前请求不在等待中,将其添加到等待中
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pendingMap.set(url, controller)
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}
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}
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/**
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* 清除所有等待中的请求
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*/
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public removeAllPending(): void {
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pendingMap.forEach((abortController) => {
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if (abortController) {
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abortController.abort()
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}
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})
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this.reset()
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}
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/**
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* 移除请求
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* @param config 请求配置
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*/
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public removePending(config: AxiosRequestConfig): void {
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const url = getPendingUrl(config)
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if (pendingMap.has(url)) {
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// 如果当前请求在等待中,取消它并将其从等待中移除
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const abortController = pendingMap.get(url)
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if (abortController) {
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abortController.abort(url)
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}
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pendingMap.delete(url)
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}
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}
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/**
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* 重置
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*/
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public reset(): void {
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pendingMap.clear()
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}
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}
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