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1 vote
0 answers
4 views

How to interact with other on-chain solana program with its IDL?

I am building a on-chain program and want to interact with another on-chain program, but I only know the program address and IDL, is it enough? And how to do that? I am new in solana and rust, please …
2 votes
1 answer
290 views

Cannot deploy program onto solana mainnet

First of all, it's super slow when deploy(anchor deploy) my program to mainnet, I got error: Blockhash expired. 4 retries remaining Blockhash expired. 3 retries remaining Blockhash expired. 2 retries …
2 votes
1 answer
25 views

ATA account can be re-created after closed?

Please check out this account: Ao48iFWgBDb2JeRzbS3274n67j7sZSiYSRy12Fs6v6if, in each transactions, this account (wsol ATA) is created at beginning and closed at end of each tx, I am a little confused. …
1 vote
0 answers
253 views

How to decode data from shred?

I found this shred doc: https://github.com/solana-foundation/specs/blob/main/p2p/shred.md#shred-payload-construction. Jito ShredStream service offers traders to subscribe shred data and I believe thes …
0 votes
1 answer
178 views

How to prevent transactions replay in solana?

Suppose I want to buy a token. If I send 100 transactions to buy it within 1 minute, how can I ensure that only at most 1 of these 100 transactions will be successful?