node 上传图片到七牛

const qiniu_sdk = require(‘qiniu‘)

qiniu_sdk.conf.ACCESS_KEY = ‘***********************‘;
qiniu_sdk.conf.SECRET_KEY = ‘***********************‘; 
// 要上传的空间
const bucket = "me-jd" 
// 文件前缀
const prefix = ‘image/me/‘ 
// 生成上传文件的 token
// isPrefixalScope: 1,{ scope: bucket + ‘:‘ + key }
const token = (bucket, key) => {    
    const policy = new qiniu_sdk.rs.PutPolicy({isPrefixalScope: 1, scope: bucket + ‘:‘ + key })//scope: "me-jd" + ‘:‘ + ‘image/activity/nianhuo‘  
    return policy.uploadToken()
} 
const config = new qiniu_sdk.conf.Config() ;
//设置空间位置为华南
config.zone=qiniu_sdk.zone.Zone_z2;
const upload_file = (file_name, file_path) => {
    // 保存到七牛的地址
    const file_save_path = prefix + file_name 
    // 七牛上传的token
    const up_token = token(bucket, file_save_path) //把‘me-jd‘,‘image/activity/nianhuo‘ 传入
    
    const extra = new qiniu_sdk.form_up.PutExtra() 
    const formUploader = new qiniu_sdk.form_up.FormUploader(config) 
    // 上传文件
    formUploader.putFile(up_token, file_save_path, file_path, extra, (err, ret) => { 
          //参数为 1：上传凭证，2：目标文件名 ，3：本机文件路径 ，4：额外选项
        if (!err) {
            // 上传成功， 处理返回值
            console.log(ret);
        } else {
            // 上传失败， 处理返回代码
            console.error(err);
        }
    });
}
// console.log(qiniu_sdk)
upload_file("nianhuo","../dist/static/images/5ad87bf0N66c5db7c.webp")