nodejs

//unique number by date
new Date().valueOf()
//file upload with rename
 let body = ctx.request.body
    let imagename = ctx.params.image
    let image = body.files.file
    var path = require('path')
    const fs = require('fs');
    let ext = path.extname(image.name)
    image.name = `${imagename}_${ext}`
    fs.createReadStream(image.path).pipe(fs.createWriteStream(path.join(__dirname,'../../public/uploads',image.name)));
    ctx.body = image.name
    } catch (e){
      ctx.body = {e}
    }