Questions tagged [data]
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How to write instruction in anchor smart contract to retrieve all data from list of program derived accounts?
I want to write smart contract which creates many program derived accounts. Accounts addresses are maintained as array. So I want to access data from one particular program derived account? How to ...
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3
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Solana Deserialization
Anymore has some resources or something on how to implement borsh deserialization for Solana instruction data?
I'm having the issue that I don't know the length so I get an error when trying to call ...
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Architecture of Dapp application which uses Solana Blockchain
Wanted to know architecture of how dapp works that uses NodeJs server and frontend. How the whole flow goes?
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Traces in Solana
I'm looking to create a data pipeline that gets traces (both value transfers and contract executions like on the EVM) but, I can't find the equivalent to it on Solana's VM.
What is the equivalent to ...
- 21
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There is a way to limit the number of RPC requests per second of the web3.js library?
I am currently doing a script to retrieve data, I have a personal RPC that accepts 600 calls/second, but my script is making more than 600 calls/second using the getParsedTransactions() method via the ...
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How to get merkle proofs for data stored on chain?
I am creating an application on solana and I would like merkle proofs for my data like other blockchains.
https://docs.solana.com/proposals/simple-payment-and-state-verification - this is the most I ...
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139
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How to know the number of active validators in Solana
I would like to know how many Solana validator nodes are running actually.
Is there a way to get this data ?
- 41
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38
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Relating logs to their instructions
For an individual transaction, how would you be able to relate a log to its corresponding set of instructions? I'm having difficulty finding a way to identify which logs belong to an instruction, ...
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Is it possible to serialise/deserialise a String in an on chain data account?
I was hoping to have an on-chain data account that stored a string that I could update dynamically from off-chain. From what I understand though a string is a growable, heap-allocated data structure, ...
- 437
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How to get the changes that happened in an account in a signature?
I have a data account with 187 bytes allocated
After each signature, the data changes. Yet I can't seem to find how to get the changes in the data that happened in that account.
e.g. this transaction
...
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Encrypt data on client, and then decrypt on-chain?
Is there support for encrypting data on client-side (ideally with public key of the program that owns the on-chain program), storing such data on chain, and then decrypting it on-chain when the ...
- 41
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Where are the hashing utils in nodejs?
I'm looking in both @solana/web3.js and @project-serum/anchor and don't see any hashing utils. What should one use to pack and hash data in nodejs? I suppose I could use ethereum/web3.js, but pulling ...
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is that all data on Solana store on memory?
I am just very confused at this point. If all data on Solana are stored in Memory what if the whole network shutdown or restarts whether all data is removed?
I thought it must stored data in Hardware ...
- 129
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Finding instruction identifiers
When you send a raw instruction to the network, you have to specify in the instruction data an instruction identifier, so that the program knows what function to call. For example, in python:
from ...
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129
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1
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Send Instruction with multiple parameters to non-anchor program help (instruciton_data)
I am working with a solana program which was written a couple years ago and it is non-anchor. I am specifically having trouble with calling the program functions from the test-side, the data field ...
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GET all collections of NFT, API, Magic eden
Good morning. I'm looking to make a small coinmarketcap, but from solana nfts, like solsniper or matricnft. I have tried with the magic eden api but it does not give many options, get /collections can ...
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Creating a data account per user of your program?
I have the following use case. Users can enter a lottery by bidding a certain amount. The program keeps track of the users and their bid amounts in its own data account (just an array of pub keys ...
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How do you convert the byte array returned as "Data" for a given instruction into a human-readable form?
I am currently looking to query historical transaction data for specific programs/wallets using the Solana CLI. The command I'm using, as an example, looks like this:
solana transaction-history --show-...
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How to actually store 10k Pubkeys in a Solana Account
Im trying to store, lets say 10,000 Public Keys inside a vector in a Solana Account. I have created the account with 500KB on devnet (8q8rTUeW9Wn3seaYiCf7HU6bpimzQTt7zEDe3RgVteBc). In theory for each ...
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