How to configure a node and connect it to a browser so that I can perform erc20 token transactions on my site between users?
How can I interact with the smart contract on ganache from my express app using Web3.js Any Tutorials?
I have a erc-20 token in the ropsten testnet and i am using my metamask for admin my token, and i just want to recieve a notification via sms, to take screenshot, whatsapp or another way frendly user, when i recieve an incoming transaction in the metamask mobile app instantly whe the transaction is confirmed.
This is not a duplicate question. The other one doesn’t answer the problem in any way. Can anyone explain to me why do I get No Events where emmited when running truffle test? Ganache is listening in 7545 and my truffle config file points to that port. I can see more blocks being produced in […]
reciver.transfer(10 ether); in this function, the sender is the one who calls this function but i dont want to transfer from the sender. I want to transfer money from another address.
i have activated watching events with Contract.events.events_name(filter, lastBlock), now i need stop watching this event. I don’t find the command in web3 docs. Web3 version: 1.2.1. How can i stop watching events, please?
I want to retrieve the total number of an erc 721 token’s transfers/ transactions. I couldn’t scrape the transfers value from etherscan as well e.g. given here https://etherscan.io/token/0x06012c8cf97bead5deae237070f9587f8e7a266d. Is there any api by which I can just get the total amount of transcations/transfers of an ERC-721 token?
I have read about block chain technology, I became interested in the fact that block chain works like a global distributed data-base and computer, which is amazing. However, that global computer for sure has a maximum memory storage capacity. I am asking for an estimate to that, even though I know it is too much. […]
gyp WARN install got an error, rolling back install gyp WARN install got an error, rolling back install gyp ERR! configure error gyp ERR! stack Error: EACCES: permission denied, mkdir ‘/usr/lib/node_modules/we b3/node_modules/sha3/.node-gyp’ gyp ERR! System Linux 4.15.0-70-generic gyp ERR! command “/usr/bin/node” “/usr/lib/node_modules/npm/node_modules/node-gy p/bin/node-gyp.js” “rebuild” gyp ERR! cwd /usr/lib/node_modules/web3/node_modules/sha3 gyp ERR! node -v v12.13.1 gyp ERR! […]