About addresses in Solana Transactions

[YingJie0712]

In solana token transfer, have 3 params: tokenMintAddress/recipientTokenAddress/senderTokenAddress.
How to get them?

[hewigovens]

You need to query Solana node, for example https://docs.solana.com/developing/clients/jsonrpc-api#gettokenaccountsbyowner

[korinsek]

1. for your wallet you can get solana address out of hdWallet: hdWallet.getAddress(Blockchain.SOLANA). If you sending to recipient I assume he will share his solana address with you.
2. tokenMintAddress - you can define your private API where you define currency definitions of your supported SPL tokens (or hardcode it is your preferred way). You can probably get it also direct from https://raw.githubusercontent.com/solana-labs/token-list/main/src/tokens/solana.tokenlist.json.
3. Once you have senders/recipients solana address and tokenMintAddress you can derive recipients/senders tokenAccountAddress with SolanaAddress(solanaAddress).defaultTokenAddress(tokenMintAddress). More details also here: https://spl.solana.com/associated-token-account