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cannot get earlier transactions and blocks #319
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Can you please provide the full code example so I can help you debug? |
sure, there's the whole function:
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Oh I see what is happening here. Helios only stores block data for blocks that start either after helios starts or within 64 blocks of the current block number (whichever is higher). This is mostly a limitation due to efficiency as well as how the light client protocol works. |
@ncitron first, thanks for your help! I have a similar problem now but with transactions. I inject the hash of the transaction to the
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Can you confirm that you can fetch a block for the block number of the transaction? |
Yes, I can do this. |
Hmm it seems I am able to fetch a receipt using this simple example: client.start().await?;
client.wait_synced().await;
let head_block_num = client.get_block_number().await?;
let head_block = client.get_block_by_number(BlockTag::Number(head_block_num.as_u64()), false).await;
let tx_hash = head_block.unwrap().unwrap().transactions.hashes()[0];
let receipt = client.get_transaction_receipt(&tx_hash).await.unwrap().unwrap();
println!("{:?}", receipt); I wonder if the breakpoints are causing it to act up. If helios can fetch the block it should always be able to get a receipt from within that block. |
Thanks for all the help! |
I am using helios as library (0.5.2)
for some reason, it seems like i cannot get the data of blocks that are not the latest block.
i use the
get_block_by_number
function and it returns None, unless it is the latest block in the chain(using BlockTag::Number with the block number).the same goes with transactions - cannot fetch information about transactions using transaction hash.
the RPC provider is alchemy.
for example, this code would work and return the block:
but this code would return None, even though there is a block with this block number:
am i using it wrong?
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