Questions tagged [ethereum-wallet-dapp]

Tag for the questions related to the deployment of the contracts using Ethereum wallet.

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Is it possible to fetch an Owner of an NFT by providing Smart Contract address and NFT ID

I am developing a smart contract which requires users to upload a specific information about their NFTs. I somehow need to verify whether they are the actual owner of that NFT before uploading ...
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1 answer
339 views

Infura API for mobile(ionic) app

I have one little question. Suppose I have private key of user in ionic app. Is this enough to make transactions using infura API and web3?
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1 answer
14 views

Importing a different wallet address in my wallet app

I'm trying to create a basic crypto wallet and I want to add an import wallet functionality like other wallets but how can I do that ? Is there any API which I can use for this ?
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2 answers
1k views

How can I automate smart contract interaction

I've deployed a smart contract to the blockchain with few functions. I want to know how I can interact with the code e.g. > Contract has 2 functions - deposit and withdraw. Now, instead of me ...
0 votes
1 answer
263 views

input decimal type parameter for contract in ethereum wallet

Is there any way to make ethereum wallet can input decimal type parameter for contract at "WRITE TO CONTRACT". For example, "sellToken" function, I want user can sell 1.23 tokens. I have see the ...
0 votes
0 answers
19 views

How can i connect to multiple blockchain nodes?

I want to connect to multiple blockchain nodes and index the data. For example, if I want to get my balance from Ethereum (or EVM compatible blockchain ) and Solana (Non-EVM compatible blockchain) I ...
1 vote
0 answers
20 views

Send transaction in the backend on behalf of another person

I am designing like platform service. The user (browser) will send a web request to a backend server. The backend server will send transaction with platform's wallet, for the user. The user does not ...
2 votes
2 answers
835 views

How is the Ethereum Name Service Avatar records used?

What is the use or how is the avatar field in the ENS TEXT RECORD used?. I am assuming that when the ENS address represents a Token's contract address, the Image avatar pops up with token when it is ...
0 votes
1 answer
204 views

how to transfer token with timestamp to restrict token transfer

I am working on basic ERC20 token smart contract and i would like to add some conditions in token transfer Suppose, I transfer 100 tokens to receiver on 2018-03-01 then receiver can't sent that 100 ...
0 votes
1 answer
562 views

Does creating account with geth command "geth account new" make a new key store holder?

There are multiple ways of creating a ethereum account through geth. geth account new newAcc, _ := am.NewAccount("Creation password"); by importing import "github.com/ethereum/go-ethereum/accounts" ...
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0 answers
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Temporary Ether addressess for a single purpose usage or reverse proxy address type solution

We have a custodial wallet payment gateway product and we accept crypto payments. For now we are giving out a single address to all the merchants.. and that is okay for our MVP. We want to move to ...
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0 answers
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trying to devlop my custom mint contract but images not fetch after adding base uri then i got to know its not returning json parameter in token uri

pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/...
0 votes
2 answers
243 views

How to Automate End to End Testing For Etherium Dapps With Metamask?

I'm wondering what the best way to test the entire stack of a dapp is? From UI -> to wallet connection -> web3.js and interacting with the smart contract? In web2 we could just use something ...
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3 answers
458 views

Unlocking Ethereum wallet using Geth JSON-RPC

When I use ETH with JSON-RPC I have error "message": "authentication needed: password or unlock» and If I manually unlock I have other error "message": "insufficient funds for gas * price + value" Any ...
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2 answers
1k views

How to connect ethers.js with MetaMAsk and other Wallets?

const provider = new ethers.providers.Web3Provider(window.ethereum) while using this i am getting window is not defined error..and i dont know how to use it. Do anyone has idea how to do it
0 votes
1 answer
2k views

Connect to metamask and WalletConnect using web3-react

I have been using web3-react to connect different wallets: I want to connect to metamask extension with the help of import { WalletConnectConnector } from "@web3-react/walletconnect-connector&...
0 votes
1 answer
15 views

Transferring weth from my contract to an other wallet address on polygon without using bridges

I have a requirement where we are building a platform that receives funds on Ethereum L1 and sends that fund back to the same address on polygon L2. I know bridges are there to transfer funds from l1 ...
3 votes
3 answers
13k views

How to generate Private key, public key and address

I can't find any documentation online about doing this in Javascript other than this. I want to know how does authentication work in a ethereum dApp's.. As per my understanding user seed somehow gets ...
0 votes
0 answers
25 views

Ethereum Validators - Can IPFS Host Rocket Pool's Minipool?

Is it possible to host a Rocket Pool Minipool Ethereum validator on IPFS? The IPFS data would be encrypted to not expose the ETH Validator's private key. IPFS is built for storing data such as ...
1 vote
1 answer
40 views

Next JS versus React. Which to use when for your Dapp? [closed]

This is a broader theoretical question. What advantages does a Next JS Dapp give over a React Dapp? Apart from file-based routing and an option to protect some code on the server side? In case I am ...
4 votes
1 answer
215 views

which wallet supports access list(eip-2930)

I am trying to use Access List feature - Link here I am using also ethers.js.. It seems like that ethers.js supports passing access list, but Metamask doesn't yet support this feature. do you know any ...
0 votes
1 answer
54 views

Use WETH for NFT MArketplace

I am working on WETH pragma solidity ^0.8.5; import "./Token.sol"; contract WETH { function transferFrom(address recipient, uint256 amount) external { Token token = Token(...
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0 answers
18 views

how to call this sc function throught ether js and define pid amount while calling it

function mintpid(address _to, uint256 _mintAmount, uint256 _pid) public payable { TokenInfo storage tokens = AllowedCrypto[_pid]; IERC20 paytoken; paytoken = tokens.paytoken; ...
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1 answer
264 views

Can not Open Ethereum Wallet on Window 10

I did trying install soft Ethereum wallet on windows 10, But I can't open the program. It looks like the picture below. Help me pls, Thank everyone.
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0 answers
21 views

how to call approve function in token contract using etherjs to allow other contract for spending of tokens

This is approve function abi: [ { "inputs": [ { "internalType": "address", "name": "token", "type": "...
0 votes
1 answer
472 views

How to start GETH console?

I'm getting the following: ➜ voting_truffle geth console WARN [11-29|22:53:43] No etherbase set and no accounts found as default Fatal: Error starting protocol stack: datadir already used by another ...
0 votes
1 answer
36 views

Getting WETH from ETH on Hardhat Local Network

I have a localhost Hardhat Network running but I need to convert Fake ETH on it into WETH. How can I do this?
1 vote
1 answer
861 views

How to decode InputValue of ethereum using java web3j

**I'm trying to decode the inputValue of an transaction using web3j without using any contract abi and wrapper class,Im loading the contract using its contract address ,is there any way/inbuilt ...
0 votes
1 answer
42 views

Can Metamask be used for all ERC20 token?

How can I use WETH with Metamask wallet? I can see ETH in my Metamask (Rinkeby TestNet, it works on Mainnet) but can not use other tokens. Any Repository or lead will be appreciated. If yes, What will ...
2 votes
1 answer
3k views

window.ethereum.request({ method: "eth_requestAccounts" }) does not open

I am using React and trying to open Metamask wallet to sign and get the address of the user. However I tried this code and I've clicked the button to trigger it, but nothing happen. This is my code ...
1 vote
2 answers
24 views

Network switching in HTML JS. Please support

Please support in adding network switch for my JS file in HTML code. Just one example will be sufficient. var bep20Button = document.querySelector('.network-bep20-token'); var matic20Button = ...
0 votes
0 answers
16 views

How do I interact with my token in smart contract after I send my assets from ethereum to polygon?

I couldn't find any good answer to the question from a development perspective. So if send my erc20 custom tokens from ethereum to polygon through bridging, what will happen then? Do I get a new ...
0 votes
1 answer
38 views

How can I use my polygon erc20 custom tokens on other chains?

I am planning to launch polygon erc20 coin. But I have come to learn recently that interchain smart contract interaction is not possible. If I want to use my polygon coins as a payment on ethereum ...
2 votes
2 answers
669 views

How to Generate Buffer for Private Key

I am a beginner in Ethereum development. I am using Web3 js 1.0 to build a simple node js application that sends ether from one wallet to another on Mainnet. I am having problem in creating buffer ...
1 vote
0 answers
2k views

How to cancel automatic withdrawal on Trustwallet?

My Trustwallet was compromised and I have some tokens staked on it. When I deposit eth or any other token, it’s automatically sent to a different address almost immediately. Kindly advise on the best ...
0 votes
1 answer
21 views

How to show my erc20 coin custom logo everywhere?

I am planning to launch my custom tokens on polygon. I want to add a logo to my coin and after a while I want to change my token logo. I have understood that there is three ways to do that - Manually ...
1 vote
2 answers
1k views

How to trim a string in solidity?

I have a function where one of its arguments is a string. How would I check the string for leading and trailing whitespaces and remove those characters? If i get something like this: " " => ""...
0 votes
3 answers
3k views

Using Ethereum public and private keys to encrypt and decrypt message (metamask client)

I am trying to use Ethereum private and public keys for message encryption like PGP and I found out this npm module on github, https://github.com/pubkey/eth-crypto#encryptwithpublickey, which it lets ...
0 votes
2 answers
865 views

geth attach issue between mac and windows

I am running geth on windows machine and try for geth attach in mac. I give below error: Fatal: Failed to start the JavaScript console: api modules: Post http://192.168.0.107:8545: context deadline ...
0 votes
0 answers
10 views

How to make my erc20 token all time visible on meta mask wallet along with a logo? [duplicate]

So I have cteated an erc20 tokens on testnet and planning to launch it on Polygon. But the token is not listed on any market place. Without importing the token using contrat address, token is not ...
0 votes
1 answer
526 views

ABI for Etherscan verification

How I can get ABI in multiple contract code? if the code is here: Token address is: 0x4960a0Db832c3Bb503F3Da59a274D9385e0Ade5A Crowdsale contract: 0x7a76d1A86a8b801865eC9134552904366b327A45 I ...
0 votes
0 answers
4 views

Are there ethereum wallet (online or desktop or even a program) that can be automated with vb.net?

For example Say I want to automate doing certain things like buying certain product. I want to tell my wallet to do so. What wallet support that functionality? It would be great if the wallet support ...
0 votes
0 answers
98 views

How to Export public key from Metamask

【Front】 const keyB64 = await window.ethereum.request({ method: 'eth_getEncryptionPublicKey', params: [accounts], }); const publicKey = Buffer.from(keyB64, 'base64') ...
3 votes
2 answers
2k views

Call deployed smart contract from web3.js

I have small test smart contract, which is deployed to my test network. And I want to use a server to call the function in the contract. Here is the code: payontime.sol pragma solidity ^0.4.0; ...
0 votes
2 answers
2k views

Convert ethereum tokens to inr

I have created an account in metamask and have got some ether tokens. Now I would like to convert them into INR so that I get hard cash. Please let me know the procedure to do it.
2 votes
1 answer
515 views

How to connect my private ethereum network to ethereum android app?

I want to access my smart contract through a mobile app, which is on my private network. There is ethereum android app, can I connect that app to my ethereum network or if there any other app through ...
0 votes
3 answers
96 views

How can I automate the crypto payments using smart contract?

I am willing to write a smart contract which can automatically send ether to certain addresses like it needs to work continuously. is it possible?
0 votes
2 answers
254 views

Restoring a mnemonic seed with one missing word

I wrote my seed with one missing word (do not know exact position). Do you know any tool for recovering ethereum wallet? I found this one, bus its for monero. https://github.com/amustafa/recovering-...
0 votes
0 answers
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ReactJS not displaying entire app, on localhost:3000

My app was displaying correctly yesterday, but now it is only showing parts of my app. There aren't any problems in my VScode terminal. I am developing on Brave Browser, and my web3 app is using ...
0 votes
0 answers
33 views

Verifying a message in python signed with Coinbase Wallet doesn't work, but using Brave Wallet works

I'm trying to verify that a message was signed by a certain address using different wallets. The signature is completed using a Vue app and the verification will happen in Python. My code works with ...

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