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180 questions
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2 votes
2 answers
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I have a question about RPCs and networks in Metamask. If I am connected to a different network (for example, a custom or virtual testnet RPC) and then switch to the Ethereum Mainnet in Metamask, will ...
peterflash's user avatar
  • 21
0 votes
1 answer
50 views

I was testing the connection for chainlink-oracle contract for the sepolia testnet. I used the following two commands: forge test --match-test test_isVersionOK --rpc-url $SEPOLIA_RPC forge test --...
dark_dementor's user avatar
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0 votes
0 answers
79 views

Hi I recently upgraded from entryPointV6 to V7 and I am facing a lot of errors like AA26 over verificationGasLimit using. This is the full error: RPC Request failed.\n\nURL: https://api.pimlico.io/v2/...
David's user avatar
  • 1
1 vote
0 answers
100 views

I am implementing a crypto payment system for my django web app. I have a smart contract that exposes some functions that let users purchase credits for my application by sending crypto to the smart ...
Andrea Palermo's user avatar
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1 vote
1 answer
115 views

Found such categorization from "mLSM: Making Authenticated Storage Faster in Ethereum" paper https://www.usenix.org/system/files/conference/hotstorage18/hotstorage18-paper-raju.pdf. There ...
Pavel Fedotov's user avatar
  • 332
3 votes
1 answer
405 views

I am trying to use ethersJs to handle multiple RPCs with a fallback mechanism, to ensure we always get a response. I tried the FallbackProvider . The probelm with it is that event if you set a quorum ...
Kaki Master Of Time's user avatar
  • 3,088
0 votes
2 answers
679 views

GM everyone. I'll appreciate any help to know how is the correct form of consume events in a backend listener of EVM solidity contracts, and if can share your favorite Rpcs Providers like infura,...
Gman's user avatar
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0 votes
1 answer
121 views

Basically I'm getting an error from my RPC node provider (Alchemy) where sometimes, when I query for the block_number I get the response -3. I don't quite understand why or if this is a rate limit ...
Rodrigo Pinheiro's user avatar
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0 votes
1 answer
847 views

INFO [02-20|20:41:18.478] WebSocket enabled url=ws://127.0.0.1:8551 INFO [02-20|20:41:18.478] HTTP server started endpoint=127.0.0.1:8551 auth=true prefix= ...
Dinith Arunasiri's user avatar
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1 vote
0 answers
18 views

I am wondering how exactly fromBlock and toBlock in eth_getNewFilter are supposed to work. The documentation is a little confusing. This page (which seems to be official) says that these parameters ...
fjarri's user avatar
  • 111
0 votes
2 answers
74 views

I would like to display over 500k EOA wallets' daily balances spanning three years back and wonder if there is a more efficient method than using eth_call and balanceOf 500k times per day for three ...
littlewatermeloncat's user avatar
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3 votes
3 answers
151 views

I'm getting a transaction from an Ethereum node using RPC. I need to understand if this transaction to an Externally Owned Account or to smart contract address. I was advised to use eth_getCode for ...
Sergei's user avatar
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0 votes
1 answer
309 views

I was wondering if there are ways to distinguish Ethereum full vs archive nodes without using RPC calls to ask for old state information. This is helpful because lots of nodes have RPC disabled so you ...
alemaz98's user avatar
  • 1
1 vote
2 answers
694 views

I'm trying to view the owner of a certain NFT at a specific blockNumber, when I make the viem call without the blockNumber parameter it works perfectly, however, once I try to pass a blockNumber with ...
Rohan Nero's user avatar
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0 votes
1 answer
2k views

I was trying to use eth_estimateGas but It throws execution reverted, The error doesn't indicate anything. This is my code : final gas = await _web3Client.estimateGas( sender: sender, ...
Reza Aslejeddian's user avatar
  • 139

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