Find answers to your questions about Ethereum or help others by answering their Ethereum questions.
When I submit a transaction via web3 and metamask, it will await 280 seconds before timing out and returning the transaction receipt. How can I catch this error and...
Asked on 11/22/2021
1 answerIm using blockchain technology for the first time, for a college project.Im trying to run a smart contract from Github.After debugging the errors shown while compiling the smart...
Asked on 11/22/2021 by sweet archita
1 answerMany bloggers have pointed out that it is almost impossible to sync an ethereum archive node using a HDD.But most of those blogs were published in 2018. I've seen several...
Asked on 11/22/2021
1 answerI have a factory pattern smart contract that creates other smart-contracts by cloning the master smart contract via Minimal Proxy Contract and CREATE2 opcode. What is the proper way to...
Asked on 11/22/2021 by navigante
1 answeri know this question has been asked many times in this forum, but none of them give clear cut answer to the questions. I tried the snippet mentioned in this...
Asked on 11/20/2021 by Arvind
1 answerI am trying to execute unit tests for a solidity smart contract: I have: mapping (bytes16=>Device) public Device_Tablestruct Device{ bytes16 UUID; bytes16 hardware_UUID;...
Asked on 11/20/2021 by MS B
1 answerI have<script src="https://cdnjs.cloudflare.com/ajax/libs/web3/1.2.9/web3.min.js"></script>How to use this web3.js on browsers without MetaMask (for read-only Ethereum queries):const web3 = new Web3(window.web3.currentProvider);fails because window.web3 is undefined. I think, I...
Asked on 11/20/2021
2 answerCompare to web application that separate the application and database, we can update the application and keep the existing data. Could you suggest me how to update dapp and keep...
Asked on 11/20/2021 by Pakorn K
1 answerI want to build a middleware that adds additional data to JSON RPC responses. This middleware would sit on the same hardware or machine as the GETH node. The traditional...
Asked on 11/20/2021 by Chirag Parmar
1 answerWhat is the process/workflow behind the process where an Ethereum contract gets some data from a website?...
Asked on 11/18/2021
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