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