cant get data from database after multiple schema declared (mongoose + express + mongodb

node.js mongodb schema mongoose express

When exporting multiple models from a single file like you are in schema.js, you need to give each exported model its own exports field name.

For example, replace the multiple module.exports = ... lines in schema.js with this code at the end of the file that exports all models:

module.exports = {    User: User,    Question: Question,    Answer: Answer,    Module: Module,    Role: Role};

And then in index.js you can access the models like so:

var models = require('./schema');...models.User.findOne(...

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