Store public address in mongodb

Moralis General
#1

I have an application using NodeJS, React and Mongodb.
Authentication is handled via a Rest API.
I would like to link a users public address to their account.

How can I securely connect metamask/wallet connect and store the users public address in the database?

#2

That would be done by default if you use Moralis sdk at authentication or when using .link

1 Like
#3

@Kooee

as cryptokid suggested ideal way to do it is to do with Moralis SDK.

when you call the authenticate() it automatically saves users public address in database

#5

Will this work if Iā€™m using my own mongodb?
Will I need to remove my own auth and replace it with moralis auth?

I would like to do email and password authentication and address link once authenticated.

#6

you can use both databases, and you can also connect directly to your Moralis Server mongo db database if you want:

https://docs.moralis.io/moralis-server/database/direct_access

#7

How do I do MetaMask to my own database?

#8

you may need to implement your own authentication functionality in that case

#9

Refer to initial question. I have my own auth system, would like to know secure way of writing eth address to mongodb

#10

if you get a signed message from the user, then you can validate the signature and add that eth address in your database

#11

Would I use web3.js to do that or does moralis have a function?

Are these what I need?

web3.eth.accounts.signTransaction(tx, privateKey [, callback]);

web3.eth.accounts.recoverTransaction(rawTransaction);
#12

you can use web3 for that, it seems like you are close to what you need, it may not be those exact functions as you will have to sign a message and not a transaction, but it seems that you are close

you can also look in GitHub on how moralis does the authentication