How to link a Solana address when logged in as a ETH account via MetaMask

johncido · April 21, 2022, 4:58pm

As described in the topic.

cryptokid · April 21, 2022, 5:01pm

Are you able to link a soma address in other way?

johncido · April 21, 2022, 5:19pm

Sorry I’m quite new in the field. Not sure what is a soma address.
What I want to achieve is that once I’m logged in using MetaMask, I need a way to connect with my Phantom wallet and sign the message. But I did not see how to trigger the Phantom account connection popup once you’re already logged in. And does Moralis provide a way to retrieve the connected Phantom wallet address or do I have to use traditional web3 API?

cryptokid · April 21, 2022, 5:23pm

It was a typo, I wanted to say solana. Using the wallet for a transaction should be different from authenticating with it. You should be able to use it without authenticating with it, like making transactions.

I don’t have experience with solana to tell you exactly how it should work in that case.

alex · April 21, 2022, 9:43pm

Does this work for triggering a Phantom login? E.g. try running it after you’re logged in with MetaMask.

Phantom (Solana) - Moralis

johncido · April 22, 2022, 6:31am

If I remember it correctly, Moralis.authenticate() always trigger Moralis.logout() first before login to another account. And this does not meet my need which is link a SOL address while keep logged in via MetaMask.

johncido · April 22, 2022, 6:32am

My need is link wallets across chains like ETH, SOL and so on. And also, if I want to link a new account via WalletConnect while logged in via MetaMask, is there any document or thread about that?

cryptokid · April 22, 2022, 6:51am

what exactly do you mean by linking wallets across chains?

johncido · April 22, 2022, 7:32am

Link addresses on ETH/EVM and SOL and so on to a single Moralis account. I’ve checked that when change active account in MetaMask, it can trigger the event and I can link the new account via Moralis. But how should I achieve same goal when I want to link my ETH account with a Solana account in Phantom? And in the document it says:

Normally a user has more than one Ethereum address.

Does this mean Moralis.link() at the moment does not support link account on chains other than ETH/EVM?

cryptokid · April 22, 2022, 7:44am

it looks like there is .link functionality in code for Solana:

github.com

MoralisWeb3/Moralis-JS-SDK/blob/3bf3cb8b5ae92557fe73bda881dd4cd5475fab75/src/MoralisSol.js#L59


  const user = await ParseUser.logInWith('moralisSol', { authData });
  await user.setACL(new ParseACL(user));
  if (!user) throw new Error('Could not get user');
  user.set('solAccounts', uniq([].concat(accounts, user.get('solAccounts') ?? [])));
  user.set('solAddress', solAddress);
  await user.save();
  return user;
}
static async link(account, options) {
  const message = options?.signingMessage || MoralisSol.getSigningData();
  const user = await ParseUser.current();
  const solAddress = account;
  const SolAddress = ParseObject.extend('_SolAddress');
  const query = new ParseQuery(SolAddress);
  const solAddressRecord = await query.get(solAddress).catch(() => null);
  if (!solAddressRecord) {
    const data = await createSigningData(message);
    const signature = await MoralisSol.sign(solAddress, data);