TypeError: Cannot read property 'readPreference' of null at new GridStore

I have used below code for retreiving image from gridfs but getting error "Cannot read property 'readPreference' of null at new GridStore"

                var readstream = gfs.createReadStream({
                    filename: file.filename
                });

                //error handling, e.g. file does not exist
                readstream.on('error', function (err) {
                    console.log('An error occurred!', err);
                    throw err;
                });

                readstream.pipe(response);

Hey, have you got any solution. Please let me know asap. Email : singhanuj620@gmail.com

Refer to #131, you may go back and try to configure the connection of GridFs.
Instead of using the connection object, you may use connection.db

const Grid = require("gridfs-stream")
let gfs

// ...connect the database

const {connection,mongo} = mongoose
gfs = Grid(connection.db, mongo)
gfs.collection('bucketName')

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TypeError: Cannot read property 'readPreference' of null at new GridStore #144

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TypeError: Cannot read property 'readPreference' of null at new GridStore #144

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singhanuj620 commented on Mar 20, 2020

Chris-QIU commented on Jun 19, 2021

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