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Results tagged with web3.js
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user 2109
Questions regarding the JavaScript SDK @solana/web3.js.
1
vote
1
answer
50
views
How do I verify a payment transaction in a decentralized backend application?
How can I verify a transaction performed in the chain on an independent service?
and how do I prevent it from being used again after using signature?
Thanks
- 113
2
votes
1
answer
319
views
how can I send a signed transaction to the chain without a signer in the backend?
I want to check the payment paid by the user in the chain and add it to database.
Frontend:
const transactionString =
"AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA …
- 113
3
votes
1
answer
678
views
Phantom - RPC Error: Something went wrong -32603
I try to sign a text and I get this error.
const anchorWallet = useAnchorWallet();
const MEMO_PROGRAM_ADDRESS = "MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr";
const MEMO_PROGRAM_ID = new PublicKey(ME …
- 113