Getting "Blockhash not found" error on Solana
Here’s the error: throw new SendTransactionError( ^ SendTransactionError: failed to send transaction: Transaction simulation failed: Blockhash not found Here’s the code I am using, based off of the...
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Quicknode returning old NFT data?
Hey there, I’m using the quicknode javascript sdk (latest version 2.1.3) to get NFT’s for an account. It seems like it’s returning old data, for example: OpenSea CryptoPablo #1633 - The CryptoPablos |...
View ArticleNew and Hyped! #Beginner
Hey @ all, im really new till a month, but the hole web3, nodes, coins everything is just tantastic. The only problem is i need to read so much docs to find what i want. Its not so easy for beginners...
View ArticleHow to get All Transfers information for a transaction
ChatGPT I am attempting to retrieve all transfers associated with a transaction. To do this, I am utilizing the API provided at qn_getWalletTokenTransactions (v2) RPC Method | Ethereum Documentation....
View ArticleConfirm Transaction Fails
Hi Everyone, I’m trying to make a bot using QuickNode. I’m using the one provided by them as a basic structure, before building on top of it I wanted to test the bot on a wallet where I have a small...
View ArticleUsing Proof from 'gettxoutproof' with Bitcoin for SPV proofs
I’m trying to use a spv proof library to verify transactions in solidity and I’m getting errors about the length and format of the proof returned from gettouxtproof. In the docs it says that the...
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WSS solana " onProgramAccountChange " does not work :woozy_face:
Hey All This is a pice of my code const web3 = require(“@solana/web3.js”); I would be really glad to be anyone help my (async () => { const publicKey = new web3.PublicKey(...
View ArticleAbout the DeFi Development with Ethereum category
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View ArticleAbout the Solana Development Course category
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Add-On for Metis - Jupiter V6 Swap API returns public endpoint
Hello, I’ve turned on the Add-On for “Metis - Jupiter V6 Swap API”. But when I go to my dashboard, the endpoint it indicates me to use is a public endpoint. How do I get my own endpoint ? See the...
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Solana - What documentation should I read to make an ICO widget?
I’ve seen a lot of Solana token projects recently, I’m learning Rust, and spent a month learning react.js/ts. I’m trying to make a widget that has a countdown timer, accepts FIAT, as well as the...
View ArticleProblem with the "Jupiter API trading bot" sample
Hello. I am playing with a Jupiter trading bot example described here: (Create a Solana Trading Bot Using Jupiter API | QuickNode) Using free endpoints (to try and evaluate before I pay for production...
View ArticleBitcoin JSON-RPC API - estimatesmartfee
Hi, For the estimatesmartfee endpoint in the Bitcoin JSON-RPC API, what are the accepted values for the “estimate_mode” parameter? I can’t find any info on this in the api docs. All it says is: By...
View ArticleThe minimum limitation of block number to get info
Hello, im trying to get block info by block_number(eth_getBlockReceipts method). Why with ETH endpoint i can’t go with less than 1 million number, and 10 million for Polygon as well 2 posts - 2...
View ArticleWSS blockSubscribe gives UnsupportedTransactionVersion
Hello… im using wss to do blockSubscribe for solana. but im getting this: Received data:...
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Marketplace for code snippet
Hello, Just a quick suggestion, it would be great to have some kind of marketplace where user can upload their code snippets (Flashloan, arbitrage, …). Then other users can use them and reward the...
View ArticleBase- network endpoint
Hi, I have a quick qustion: does instructions work for a BASE wss endpoint? About BASE, getting different opinions from people. Can you provide me with a live BASE websocket feed? This is the Ethereum...
View ArticleStructError: Expected the value to satisfy a union of `type | type`, but...
hi, my code like this: const xsysAccount = getPDA(program, SYS_ACCOUNT_SEEDS) return program.account.sysAccount.fetchAndContext(xsysAccount) .then((xdata) => { console.log(`sysAccount: `,...
View ArticlePricing of multicall requests
I use the multicall contract to batch hundreds of calls to a single multicall request. For how many rpc requests will I be charged for? 2 posts - 2 participants Read full topic
View Article503 Server Error for QuickNode w3 API Avalanche node
from web3 import Web3 w3 = Web3( Web3.HTTPProvider( MY_ENDPOINT, request_kwargs={"timeout": 10000} ) ) w3.eth.block_number # OK w3.eth.get_balance('0x0123456789010101000000000000000000000000') # NOK 3...
View ArticleToken balances on Sepolia
Hello! We’re using qn_getWalletTokenBalance which works well on Ethereum mainnet, however, we aren’t seeing anything other than the Ethereum balance on the Sepolia testnet. Is this expected behavior?...
View ArticleHow To Trace Solidity Errors On Websocket (Hardhat)?
If I had hair, I’d be tearing it out trying to get to the bottom of this. I have a hardhat javascript bot to analyze and make trades on ethereum that connects via websocket on web3js. I’m currently...
View ArticleQuick Alerts tx_to with topic_log2
Hi how can I create an expression to identify bnb and bep20 for example I need to track when sending bnb and when sending bep20(tx_logs_topic2) here is an example of what I was trying to create (tx_to...
View ArticleBlockhash not found
just like this How to Transfer SPL Tokens on Solana | QuickNode node_modules@solana\web3.js\src\connection.ts:5921 throw new SendTransactionError( ^ SendTransactionError: failed to send transaction:...
View ArticleRetrieving Balance of Pool
Hello how can i get pool token balance of SOL, and token 1 post - 1 participant Read full topic
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How to listen for pending transaction on Base
Hello everyone, i have been trying to adapt a ethers.js script that listen for pending transaction en ethereum mainnet to base but have been struggling. i can’t seem to find a lot of ressources or...
View ArticleIs there any tutorial how to collect timelock SPL tokens?
does anyone has the experience of creating a time lock contract in mainnet ? the token holders can lock their SPL tokens and it will get released at the expiration date, the signature from all the...
View ArticleFailed to give full transactions. Some signatures are missing
Hi, I am trying fetch all the signatures of a solana token with details. I am using monthly subscription. But Its failed to give full transactions. Some signatures are missing. async function...
View ArticleMy EndPoint has been disabled
How to pay due amount after upgrading the plan from discover to basic. 2 posts - 2 participants Read full topic
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Can't delete destination via UI
I created a test destination that I can’t delete: QuickNode - QuickAlerts - Destination I deleted all notifications from my account so nothing should be using this destination. I can edit it but there...
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