I want to build an NFT that I can paid with an ERC-20 token to mint it. I'm using currently the Mumbai testnet on polygon, and I'm using the Dummy ERC20 token t
I am very new to web3 etc but as far as I know, every account is represented by a public/private key. The public key can be accessed anytime and the private key
I'm trying to learn how to create NFTs on the Ethereum block chain. In terminal (Ubuntu 20.04.3 LTS) Aki-Zeta:~/my-nft$ node scripts/mint-nft.js I keep getting
so yea I tried to get all the transactions of a wallet address on a certain token contract. But it keeps on returning null. const Web3 = require('web3') const
type Product struct { ID string `json:"id"` Name string `json:"name"` Area string `json:"area"` OwnerName string `json:"own
Smart contract execution needs gas fee. So all data can't be stored in blockchain. Images could be stored on ipfs like Pinata. Do I have to develop extra backen
I would like to airdrop sols into a specific account to get my smart contract to fire an anchor test. Whenever I run my test I come across the error Error: Acco
Trying to deploy a program to solana devnet. I was using solana program deploy ./path/xxxx.so -u devnet And I got multiple lines of msg 21AbKBwMcsDR4DciR6Z69X6v
If a smart contract has the compiled bytecode for a contract can the first deploy a subsequent contract? According to Ethereum.org: "To deploy a smart contract,
I am trying to set up a Hyperledger Fabric Network with Hyperledger Explorer. I spin up a VM on the digital ocean cloud with ubuntu OS. From there, I spin up 3
As per the Corda coding guidelines, I have seperated out modules into contracts and workflows-common. There are workflows modules like workflows-party1, workflo
RocksDb: Multiple values per key (c++) what i am trying to do I am trying to adapt my simple blockchain implementation to save the blockchain to the hard drive
In Solana you can get your own balance with the CLI $ spl-token accounts But how do I get the token balance of a foreign account if I have the account ID or hi
I'm using node version 12.20.2 and npm version 6.14.11 and installed truffle with cmd as administrator, the truffle framework version 5.5.12 has been installed
I have installed cardano-wallet using this documentation. Everything is OK, Just I don't know how to run it so I can have interaction with it via node js: const
On doing minifab up command can we specify the chaincode installed default (simple) to our own chaincode , by changing the configurations in the spec.yaml ???
I am looking to grab historical data from our Solana Devnet feeds. Can you let me know if get_submissions is the function that should be called for historical d
I get this error where I run anchor deploy: Deploying workspace: http://127.0.0.1:8899 Upgrade authority: /home/<user>/.config/solana/id.json Deploying pr
Getting this error while trying to run a eth-brownie script on MacOS ModuleNotFoundError: No module named 'Users.xyz' Run command: brownie run scripts/mainne
I have beginner skills as Full stack Developer and am looking to help developing a crypto wallet with a small start up. The idea is to create a wallet that will