Questions : multer filename & metadata options

[PierreBrisorgueil]

Hello,

first of all thank you for this work which simplifies a lot of things. I just have a little quesiton after playing with a lot of tests.

Do we have other options than playing with this kind of tricks to redefine metada & filename with multer?

https://github.com/ekline-expnet/mongoose-gridfs-multer/blob/master/index.js

thanks for your time

[lykmapipo]

@PierreBrisorgueil

If you look on mongoose-gridfs multer implementation, file metadata and aliases are derived from the incoming http request.

Options: redefine metada & filename with multer?

1. Include metadata and aliases from the request source. No code changes
2. mongoose-gridfs to allow options for getFilename and getMetadata - Require code changes

[PierreBrisorgueil]

@lykmapipo Ok :) thx for this informations !

1. Hum, i will try to add a middleware before multer.upload to play on this, already tryed that but maybe too quickly
2. yep, a feature like that could be interesting to further simplify the handling

to give ideas with alternative example :

const GridFsStorage = require('multer-gridfs-storage');
new GridFsStorage({
      db: connection,
      file: (req, file) => new Promise((resolve, reject) => {
        crypto.randomBytes(32, (err, buf) => {
          if (err) return reject(err);
          const fileInfo = {
            metadata: { user: req.user._id },
            filename: buf.toString('hex') + path.extname(file.originalname),
            bucketName: 'uploads',
          };
          resolve(fileInfo);
        });
      }),