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March 22, 2020 02:03
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封装qiniu-js的ts文件示例
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import * as Qiniu from 'qiniu-js' // 注意qiniu-js并没有export default! | |
import dayjs from 'dayjs' | |
import { getQiniuToken } from '@/api/user' | |
import { QiniuSetting } from '@/api/types' | |
export interface ObserverNextRes { | |
/** | |
* 进度更新回调数据 | |
*/ | |
total: { | |
/** | |
* 已上传大小,单位为字节 | |
*/ | |
loaded: number; | |
/** | |
* 本次上传的总量控制信息,单位为字节 | |
*/ | |
total: number; | |
/** | |
* 当前上传进度,范围:0~100 | |
*/ | |
percent: number; | |
}; | |
} | |
export interface ObserverError { | |
isRequestError: boolean; | |
code: number; | |
message: number; | |
reqId: string; | |
} | |
export interface QiniuObserver { | |
/** | |
* 接收上传进度信息的回调 | |
*/ | |
next: (res: ObserverNextRes) => void; | |
/** | |
* 上传错误回调 | |
*/ | |
error: (err: ObserverError) => void; | |
/** | |
* 上传完成后的回调 | |
*/ | |
complete: (info: any) => void; | |
} | |
export interface QiniuSubscription { | |
/** | |
* 中止当前上传 | |
*/ | |
unsubscribe: () => void; | |
} | |
/** | |
* 七牛云上传资源返回的对象 | |
*/ | |
export interface QiniuObservable { | |
subscribe: (observer: QiniuObserver) => QiniuSubscription; | |
} | |
/** | |
* 根据文件名取出后缀(带.) | |
* @param fileName 文件名 | |
*/ | |
function getSuffix (fileName: string): string { | |
let suffix = '.jpg' | |
const res = fileName.match(/(\.[!.]+)$/) | |
if (res) { | |
suffix = res[1] | |
} | |
return suffix | |
} | |
/** | |
* 上传图片文件至七牛云空间 | |
* @param config 七牛云空间配置 | |
* @param img 图片文件 | |
*/ | |
export default async function uploadImage (config: QiniuSetting, img: File): Promise<QiniuObservable | null> { | |
const res = await getQiniuToken({ | |
AK: config.accessKey, | |
SK: config.secretKey, | |
bucket: config.bucket | |
}) // 获取七牛云空间上传token | |
if (res.data.token) { | |
const cur = dayjs().format('YYYYMMDDHHmmss') | |
const observer: QiniuObservable = Qiniu.upload( | |
img, | |
`${config.path}${cur}${getSuffix(img.name)}`, // 文件名 | |
res.data.token | |
) | |
return observer | |
} | |
return null | |
} |
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