Function download

src/node/index.js:16–33

(url, savePath, params = null,options)

    // File download API
    download(url, savePath, params = null,options) {
        return this.request(url, params,utils.merge({responseType: "stream"},options))
            .then(d => {
                return new Promise((resolve,reject)=> {
                    fs.writeFile(savePath, d.data,(err)=>{
                        if(!err) {
                            resolve({size:d.data.length,path:path.resolve(savePath)})
                        }else{
                            // Failed to save file
                            err.status=2
                            reject(err)
                        }
                    })
                })
            }).catch(e=>{
                return Promise.reject(e)
            })
    },

    // File upload API
    upload(url,formData,options) {