In the process of developing an application utilizing a MongoDB database, I am creating a user registration feature. The user account model consists of three unique values: ID, Username, and Email. I am employing Mongoose v5.5.5 for database querying.
For new user registrations, I aim to conduct a query (findOne or find) to check if there is an existing user with the same ID, username, or email address. Below is the sample code snippet that I believed would achieve this:
let query = {
'id': sanitized.id,
'username': sanitized.username,
'mail': sanitized.mail
}
AccountModel.find(query, (error, data) => {
// Handle the result
})
Consider a scenario where a user 'user1' has the email [email protected]. Now, another user attempts to register as 'user2' using the same email address.
How can I construct a query that checks for a match on either the username or the email, signaling if either is already in use by another user?
I prefer utilizing a single query for simplicity and clean code, but have not yet found a suitable solution. Any assistance would be greatly appreciated.