MongoParseError: Unsupported options bufferMaxEntries, useFindAndModify, useCreateIndex

MongoParseError is a Mongo driver error that is thrown when an unsupported option is passed to the driver. In this case, the options bufferMaxEntries, useFindAndModify, and useCreateIndex are not supported by the driver.

What are these options?

• bufferMaxEntries: This option sets the maximum number of operations that can be stored in the driver's internal buffer before they are dispatched to the database. This option is not supported by the driver.

• useFindAndModify: This option is used to enable/disable the use of the findAndModify command for update operations. This option is not supported by the driver.

• useCreateIndex: This option is used to enable/disable the automatic creation of indexes by the driver. This option is not supported by the driver.

How to fix the issue?

If you are using any of these options and they are causing the MongoParseError, the solution is to remove the unsupported option from your code.

For example, if you are using the useFindAndModify option, you can remove it from your code as follows:

mongoose.set('useFindAndModify', false);

In this way, you can avoid the MongoParseError and your code will work as expected.

Conclusion

MongoParseError is a driver error that can occur when unsupported options are passed to the driver. In this case, the options bufferMaxEntries, useFindAndModify, and useCreateIndex are not supported by the driver. To fix the issue, you should remove the unsupported option from your code.