Questions tagged [ethereum-wallet-dapp]

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

Filter by
Sorted by
Tagged with
65 votes
2 answers
51k views

What is the relationship between Mist and Ethereum Wallet?

In https://github.com/ethereum/mist/releases 0.3.6 the files are named Mist. Starting in 0.3.7 the files are named Ethereum-Wallet. Will files named Mist take over in the future, or will there be 2 ...
user avatar
  • 78.3k
60 votes
6 answers
84k views

payable() function In solidity

I have read many examples of payable functions, but I didn't understand any of them. Also, they talked about modifier in payable. My questions are: What exactly does payable() function do? ...
user avatar
  • 2,029
33 votes
11 answers
67k views

How to get private key from account address and password?

What I have 1. I am able to create new account with personal.newAccount() method of web3 api. 2. I am working on my private blockchain. 3. geth node start with following command:- geth --datadir ~/...
user avatar
  • 821
19 votes
4 answers
39k views

How can I find my `chaindata` folder?

Someone referred me to the chaindata folder to troubleshoot a problem I am having with Ethereum-Wallet/Mist. How can I find it?
user avatar
19 votes
4 answers
6k views

How do Ethereum clients generate unique addresses?

How do Ethereum clients, like Ethereum Wallet or Eth-Lightwallet, generate unique addresses that haven't been used before, and what is the likelihood that these addresses have been used?
user avatar
  • 1,605
18 votes
6 answers
13k views

Best way to test a smart contract

I just want to deploy and call a simple sample smart contract only for testing purpose. Do I need to download the entire ethereum blockchain? Its too huge and takes too long to download. Can someone ...
user avatar
18 votes
6 answers
14k views

How to set a different datadir in Mist?

With bitcoin and others, you can use --datadir option to specific where blockchain, keystore, etc are saved. But doesn't work with Mist. From the offical wiki: To configure the location of the ...
user avatar
  • 871
18 votes
2 answers
10k views

How to pass constructor parameters to a contract using Truffle?

I am using testrpc and truffle for deploying contracts.I want to pass constructor parameters while deploying. contract User { string public userName; function User(string ...
user avatar
18 votes
2 answers
13k views

In Mist browser how can I move the data (blockchain) to another drive on Mac OSX?

My Mac "System" drive is almost full. As I actually have two drives, I want to move the blockchain from the default location to the second drive. How can I do it ?
user avatar
12 votes
4 answers
5k views

CryptoCurrency NODE.js Web3 Ethereum - Can't connect to TESTRPC

I am trying to connect to my testrpc instance from a my web3 application but I can't seem to connect. The below code should return an array of all the accounts in the testrpc chain. Code: Web3 = ...
user avatar
  • 143
11 votes
4 answers
822 views

How to determine if ISP is blocking Ethereum traffic

My "Ethereum Wallet" from ethereum.org used to connect to several peers. A while ago I noticed it was taking longer and longer to sync and the number of peers dropped. It got worse, and seldom ...
user avatar
10 votes
6 answers
7k views

address.transfer not working

pragma solidity ^0.4.23; contract ApprovalContract { address public sender; address public receiver; address public constant approver = 0x5AEDA56215b167893e80B4fE645BA6d5Bab767DE; constructor() ...
user avatar
10 votes
1 answer
3k views

Will it ever be possible to group multiple ERC20 tokens into a single transaction?

Specifically, if I wanted to send multiple different tokens to a smart contract, but it was important to the contracts function that all tokens arrive at the same time, could I put; 20 Token A 45 ...
user avatar
10 votes
2 answers
5k views

Storing private data on the ethereum blockchain

I plan to make an app utilising Ethereum that will store private data about a user. Eventually, I want this data to be accessible by selected users. I have seen conflicting answers & discussions ...
user avatar
  • 249
9 votes
5 answers
13k views

What is the cause of the error: Expected import directive or contract definition

I'm working on the tutorial at https://www.ethereum.org/dao and I'm getting the following error: 1:5: Error- Expected import directive or contract definition. function owned() { ^ When I get ...
user avatar
  • 101
9 votes
2 answers
3k views

Best way of accepting ERC20 tokens in my service

I need to allow users to deposit and extract ERC20 tokens in my service, and I'm wondering what's the best way of implementing that. My idea is to generate an account for each user, and when a user ...
user avatar
  • 407
9 votes
1 answer
8k views

Could somebody please explain in detail what this Ethereum contract is doing?

I am new to ethereum & blockchain technology and trying to understand somethings(Etheruem, Truffle, DApps etc.) here and there from the internet. From Ethereum official website, Create a ...
user avatar
9 votes
1 answer
1k views

DAPPS - Scope of what to put in your smart contract

As I'm learning more and more about developing Dapps, I'm having trouble understanding what needs to be stored in the smart contract (over our database etc..). Let's take the case of a simple betting ...
user avatar
  • 203
9 votes
1 answer
10k views

How can I specify an external harddrive as the download target for the Mist blockchain in Ubuntu?

How can I specify an external harddrive as the download target for the Mist blockchain? Hi there, I am using Linux Ubuntu 15.10 My harddrive is quite full and I need to download the whole Mist ...
user avatar
  • 1,302
9 votes
1 answer
611 views

Ethereum Wallet Contract with two owners can't transfer ETH

I set second owner for contract with ETH and dailly limit for transfers. I can transfer ETH under this limit. But large quantity transfer (to DAO contract) is not work. One owner (my first account in ...
user avatar
8 votes
1 answer
5k views

How to remove The DAO contract from Ethereum Wallet (Mist) watch list as it is freezing?

I added The DAO to my Mist watch list, but as many people I experienced freeze of the wallet since. I would like to remove this contract that probably generates too much transactions to watch but as ...
user avatar
8 votes
3 answers
9k views

I am having trouble doing the initial sync of Ethereum-Wallet, what can I do to troubleshoot?

I am trying to sync Ethereum-Wallet (aka Mist) for the first time. Unfortunately, it is taking a really long time (days) and I was told that this should only take a couple hours. What can I do to ...
user avatar
8 votes
1 answer
782 views

How can I import accounts created by quorumwallet into Ethereum Wallet Mist?

I created an Ethereum address using quorumwallet.com. How can I manually import it to Mist Wallet so I can transact using Mist?
user avatar
  • 161
8 votes
3 answers
8k views

Ethereum Testnet mobile app wallet

Is there any Mobile Wallet like Jaxx, but with testnet(like, kovan, ropsten)? Please do suggest me, I am workin on the cryto coin transfer application.
user avatar
7 votes
4 answers
11k views

Transfer from contract address

I created a contract with a payable function but the ether is stored in the contract I am looking for a way to transfer the ether to another address
user avatar
7 votes
2 answers
12k views

Ethereum Wallet vs. Mist (vs. Testnet vs. Mainnet)

I'm having a bit of trouble completely understanding the inner workings of ETH and the Ethereum wallet UI vs Mist (when having used testnet), and I need to ask some rather stupid questions to ...
user avatar
  • 111
7 votes
2 answers
5k views

Login system for DAPP without metamask

I'm building Dapp on Ethereum. Imagine I have companies to register in my dapp, I will provide them with their own smart contract and public and private key pair, which they will use to just unlock ...
user avatar
7 votes
2 answers
24k views

Using sendTransaction in Web3.js

I'm trying to make a function in my Dapps front end that requests Ether from the user, I know I have to use web3.eth.sendTransaction() but am unsure of how to correctly implement and call this ...
user avatar
  • 474
7 votes
1 answer
4k views

Does ethereum support something like bip32 extended public key?

Bitcoin and Litecoin have something called XPUB key or Extended Public Key that essentially allows to track all generated public addresses, so think monitor your total balance in one key. I was ...
user avatar
  • 336
7 votes
1 answer
5k views

How do I add more gas to transaction in the Ethereum Wallet?

I'm trying some things out in the ethereum wallet but it keeps guessing the amount of gas wrong. How do I send more gas in the ethereum wallet?
user avatar
7 votes
1 answer
1k views

I created a wallet contract, sent ether to it and now cannot send to another account

While experimenting. I creating a wallet contract. Here is the address: https://etherscan.io/address/0xC23501aB1E8E5C5EDB0fFA83C5A4DcFb9c31a355 I sent some ether to it. Now I want to send the ether ...
user avatar
7 votes
2 answers
5k views

Token transfer: Intrinsic gas too low

I have created a cryptocurrency by following this link .I have deployed the contract in Mist. I am using transferFrom() function in Ethereum wallet to transfer currency from one account to other but ...
user avatar
6 votes
4 answers
2k views

How to troubleshoot a white screen in Mist browser?

I keep running into issues with white or black screens showing up after installing the mist browser or the ethereum wallet. How to troubleshoot a blank screen in the wallet or browser?
user avatar
  • 31.4k
6 votes
3 answers
4k views

Error creating contracts on Ethereum wallet

First of all, I'd like to provide a disclaimer. I'm not a developer, I never studied codes, and never wrote scripts since I was 14 years old. I'm doing this project for the company I work in at the ...
user avatar
6 votes
1 answer
2k views

Can we modify a deployed contract in ethereum-wallet?

I have deployed a contract in ethereum-wallet for creating my own crypto-currency. I want to ask that in future if i want to add functionalities to my currency then is it possible ?
user avatar
6 votes
1 answer
3k views

How to withdraw Ether from a contract

I've been playing with Token contracts, so far so good, however once the Ether is sent and the tokens created, what happens to the Ether? I have some Ether on the contract address, how do I withdraw ...
user avatar
6 votes
2 answers
8k views

Is the Gas Fee refunded if the transaction fails?

I'm confusing the rule of paying gas fee when caller makes a transaction. The gas fee is needed when the transaction is made and I know that the require() is the guard function that returns all the ...
user avatar
6 votes
1 answer
2k views

Limit of address creation using single mnemonic

How many Ethereum address can be created using a single mnemonic for Ethereum using derivation path?
user avatar
  • 3,405
6 votes
1 answer
627 views

Does quorum support privacy between accounts when multiple accounts use same quorum-node?

From what I understand by this wiki on Transaction processing, quorum-nodes which are privy to a private Tx, will update their private stateDbs. My question is, can two different accounts access ...
user avatar
  • 63
6 votes
1 answer
153 views

Is that easy to turn a centralized app into a dApp hosted on Ethereum blockchain?

Currently I have an app that I use on my own servers. It is coded with JavaScript and PHP. The code is ready, I mean already exists. Would it be difficult to turn it into a dApp using smart-contracts,...
user avatar
6 votes
2 answers
2k views

how to solve solidity asynchronous Problem

How to deal with asynchronous operation because of the delay blockchain ? How does the blockchain perform under high concurrency? how to deal with the mutually exclusive variable?
user avatar
  • 657
6 votes
1 answer
2k views

Why aren't my accounts / keystore files showing up in Mist / Etheruem Wallet?

I recently upgraded to 0.7.4 (Windows) and all my accounts are gone. In the keystore folder, I can see what I think are my keys. However they are not being auto loaded. When I went from 0.6.1 to 0.7....
user avatar
  • 233
6 votes
1 answer
2k views

Where does the mist browser store the node log files?

Mist uses to launch it's own client (geth or eth) in the background. Does it store the node's logs? If so, where?
user avatar
  • 31.4k
6 votes
3 answers
1k views

"TypeError: Cannot read property 'sendTransaction' of null" error when deploying to Ropsten testnet using hardhat

I am getting the error: TypeError: Cannot read property 'sendTransaction' of null at ContractFactory. (/Users/UserName/Downloads/nft-marketplace-ethereum/node_modules/@ethersproject/contracts/src.ts/...
user avatar
  • 61
6 votes
2 answers
304 views

What's the chainstructure that mist is downloading?

What is the highest number of chain structures that I need to sync with? I'm currently on 10.08 million, and the block sync is stuck at 2,562,029. Is this normal? The website telling me which block ...
user avatar
  • 61
6 votes
1 answer
2k views

Mist error: "unable to connect to socket:timeout"

In mist wallet i am getting an error of unable to connect to socket and couldn't compile source code.Do help me where i am doing the mistake.
user avatar
  • 111
5 votes
4 answers
3k views

Connect Mist with testrpc on a Mac

I followed this answer to connect Mist to testrpc: https://ethereum.stackexchange.com/a/10109/5995 The command to start Mist with arguments doesn't work on OS X so I tried this instead, which doesn't ...
user avatar
  • 861
5 votes
5 answers
11k views

how to connect to geth from two local machines ethereum

I am new to Ethereum and tried everything to connect testnet from two local machine nodes.i tried with running two consoles in single machine by admin.addPeers(nodeUrl) and could connect. when i tried ...
user avatar
5 votes
3 answers
2k views

Mist 0.7.3: how long does it take to sync and how much data do I need to download?

I just installed Mist 0.7.3 and would like to know how long does it usually take and how much data does it download as of today. What other alternatives are there to Mist if I dont want to download ...
user avatar
5 votes
1 answer
535 views

Why is it that the Mist client can not display the transactions?

"Latest Transactions" not updating in Mist Wallet after sending Eth from Polo to my wallet. Balance is updating fine but can't see any transactions since 3/31.
user avatar

1
2 3 4 5
19