Solana Provider

The Tomo Telegram SDK provides a Solana Provider for querying and sending SOL and SPL tokens.

// get provider 
const sol = window.tomo_sol;

Connect with the Wallet​

Before using the provider, the user needs to log in to the wallet through the modal by following the method:

// connect wallet
await sol?.connectWallet();

Query Methods

Solana providers support two query methods:

• getAddress

• getBalance

const address = sol.getAddress();
const balance = await sol.getBalance(address);

Signing Methods

In Solana providers, we provide four signing methods:

• signMessage

• signTransaction

• signTransactions

• signTokenTransaction

Sign message

signMessage the method will create an offchain signature for one message and return the signed transaction in hex.

 const response = await sol.signMessage(signMsg);

To verify the signature, you need to add the header "\xffsolana offchain" before the `signMsg`

SOL transfer transaction

signTransaction is typically used to send SOL to another address and return the signed transaction. You can also use signTransactions it to pass an array of transactions for signing.

const response = await sol.signTransaction({
  from: 8y9wmwVhban5Mrp8j68fQv1Kceeifeowt5Yw1DjwXoxk,
  to: 646rZ228LDcYecNvoBGNysJ9pGLc7gBeTrnSgZ476rBp,
  value: 0.01,
});

SPL token transaction

and signTokenTransaction supports signing transactions for sending SPL tokens. You need to provide a mint address for this transaction.

const response = await sol.signTokenTransaction({
  from: '8y9wmwVhban5Mrp8j68fQv1Kceeifeowt5Yw1DjwXoxk',
  to: '646rZ228LDcYecNvoBGNysJ9pGLc7gBeTrnSgZ476rBp',
  value: val,
  chainId: 501,
  contract: 'Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB',
});

Sending Methods

After signing transactions, you can use sendTransaction it to send the transaction. The return value is the transaction hash:

const res = await sol.sendTransaction(response);