Questions tagged [contract-deployment]
The act of pushing a compiled smart contract in byte code to the Ethereum blockchain.
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questions
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Error: Invalid JSON RPC response | ropsten.infura
I'm trying to deploy my contracts to the ropsten test network, but I get this error.
the message error :
C:\Users\acer\test>truffle migrate --reset --network ropsten
Using network 'ropsten'.
...
1
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1answer
19 views
truffle migrate --network kovan issue
When I run truffle migrate --network kovan in the terminal the contract deployment doesn't run. Just:
Compiling your contracts...==================== >Eveything is up to date, there is nothing to ...
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0answers
13 views
estimateGas works on Truffle, but fails on geth
I'm trying to estimate the gas required for deploying a smart contract. It works fine in Truffle, but fails in Geth for some weird reason:
truffle(develop)> await web3.eth.estimateGas({ data: '...
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0answers
31 views
Error: types/values length mismatch
I'm following an Ethereum Dapp tutorial in Udemy. I seem to stumble upon an error somewhere early in the course. I was about to deploy my beginner's contract and test it with Mocha when the problem ...
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3answers
205 views
Pattern to deploy a smart contract from another one without spending twice the gas
It seems that if we want to deploy a smart contract (let's call it Target) from another one (let's call it Deployer) in Solidity via new, we spend a gas amount linear in the size of the deployed ...
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1answer
29 views
How to deploy a smart contract to actual ethereum network instead of Truffle or Ganache?
I am building a react application using web3 to interface with Ethereum. At a bare minimum, it needs to create a contract, deploy said contract, store a value (i.e. a string: "test"), then later ...
0
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1answer
26 views
How risky is it to ask a dev to deploy smartcontract for you?
I’m currently in the process of hiring a dev to develop my token and my smartcontract and deploy it.
Will he need my ETH private key to do it ?
Can he change the destination of the funds once the ...
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0answers
42 views
Truffle Contract deployment >> Error: Returned values aren't valid, did it run Out of Gas?
I have a rpc enabled running private ethereum blockchain node with mining enabled.
I have connected to it using metamask and have performed some contract interactions (deployment, calling functions,...
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18 views
Steps of Uploading of smart contract on the main Ethereum Network
The following link discusses about deploying of smart contract
[How To: Deploy Smart Contracts Onto The Ethereum Blockchain1
But it does not say how much it would cost to upload the contract on ...
2
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1answer
20 views
Is Contract Deployment analogous to Object Instantiation?
Is deploying a contract analogous to instantiating a plaint old class in OOP and the address returned similar to the memory pointer of the OOP object? Should I be thinking of the ledge as memory to a ...
0
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1answer
58 views
Truffle error when deploy a contract
Does anybody know how to solve this? I've try to compile and deploy my contract to get the address, why obtained this error
Error:
1_initial_migration.js
======================
Deploying '...
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1answer
17 views
Truffle ganache error
I have this error~!
Contract has not been deployed to detected network (network/artifact mismatch)
Can you help me thank you!
0
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1answer
20 views
Sending an array of addresses and amount to be paid to a contract
I need to pay 50+ addresses each with different amounts of ether. Right now im doing it by looping through an array on my front end and calling the contract function each time with the address and its ...
2
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2answers
188 views
What's the difference between Truffle Migrations and ZeppelinOS upgradeable contracts?
It was my understanding that Truffle migrations will move updated contracts to new addresses. As a developer, you can use this feature to update already deployed contracts with new code.
ZeppelinOS ...
0
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1answer
20 views
Is Smart Contract of any ERC20 token is always available publicly
Is Smart Contract of any ERC20 token is always available publicly.
If not complete, then what things are generally available,(for eg, except some sensitive information)
And, if not any of them are ...
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2answers
45 views
ERC721, Token name and symbol not shown in etherscan
I have created a simple token with ERC721, but etherscan not show my token name and symbol, why? this is my contract
I deploy with this code
Result on etherscan
No token name and symbol showed, is ...
0
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2answers
38 views
Instantiating a contract inside another contract on behalf of some address
I want to initialise an instance of a contract inside another contract on behalf of some address.
e.g. I have contracts A and B
contract A{
address owner;
constructor() public{
...
0
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1answer
18 views
Problem understanding the owner assignment
Suppose I have 3 contracts, namely Owner, B and C:
contract Owned {
address public owner;
constructor() public {
owner = msg.sender;
}
modifier onlyOwner {
require(...
0
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1answer
53 views
Sending a transaction without using MetaMask
I have designed a contract deployed on the Rinkeby with web3. I have also implemented a react app to interact with the blockchain.
I want to use my application without metamask but I got this error ...
2
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1answer
47 views
How to find the Bytecode of Ethereum Smart Contract by just it's address using JSON RPC
I am wondering that is there any way to find the byte-code of the Smart Contract which is published on a blockchain just by having only idea about it's contract address using JSON RPC running at 8545 ...
1
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1answer
20 views
Is it possible to connect to public Ethereum like blockchain with Remix to deploy and view contracts?
I've tried to do so by specifying the web3 provider and the 8584 port but it gets stuck on every try.
Is this possible? if so, is there another solution for that need?
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1answer
32 views
Issue Deploying Contract LinkedIn Course - Ethereum: Building Blockchain Decentralized Apps (DApps)
I'm completely new to Ethereum Smart Contracts. I'm following the course on LinkedIn [Ethereum: Building Blockchain Decentralized Apps (DApps)].
I've been able to compile the smart contract as per ...
1
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1answer
44 views
web3 - Contract deployment has been reverted by the EVM
I want to deploy a contract but my transaction gets reverted. This only happens with Web3, while it works fine with Remix.I can assure the ABI and Bytecode are correct because I pasted them from Remix,...
1
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1answer
25 views
Calling a smart contract function with an unsigned transaction
I'm new to working with Ethereum smart contracts and would appreciate some guidance by the community on a task that I'm trying to solve.
This is the contract I want to use - https://github.com/chatch/...
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2answers
36 views
Set the price by calling another contract and getting result from it
I want to set the price in Token every time the contract is deployed by calling ETHUSD in constructor and getting result from it.
pragma solidity ^0.5.0;
import "./ETHUSD.sol";
contract Token {
...
0
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1answer
38 views
extract address of used library
Is there anyway or method to extract the address of a linked library from the contract bytecode (not a verified contract code) or deployment transaction?
my question is about step 3:
step 1. ...
1
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1answer
58 views
truffle deploy live | transaction not mined within 750 seconds
I'm trying to deploy my smart contract to the live ETH network. I've done the same process on rinkeby and it works fine. However during the block mining phase it times out and gives the error:
" ...
0
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1answer
20 views
Load another deployed contract's public values
pragma solidity ^0.4.24;
I'm trying to call another contract's functions to return values.
I have the below which successfully returns a true/false
_childAddress.call(bytes4(keccak256("...
0
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1answer
33 views
Contract [Contract's name] not found on network ID: 5777
I am using truffle with drizzle.
In the contract folder I provide a file that includes two contracts
A that is a factory contract and
B that is created through one of A's functions
After compiling ...
0
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2answers
17 views
web3js returns non-checksumed addresses!
Why does web3js 0.20.6 returns all-lowercase addresses on contract creation not a checksumed address?!
How to deal with this trouble?
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2answers
80 views
Can't deploy contract with web3.js and ganache-cli
I'm using the solc module to compile a Solidity contract. The compilation step looks to be working correctly, however, when I attempt to deploy the contract to the Ganache network (in a Mocha test), ...
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0answers
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Does a verified deployer contract implies that it's child token contract is also verified upon creation? [duplicate]
Token address: https://etherscan.io/token/0x12b19d3e2ccc14da04fae33e63652ce469b3f2fd
Contract address: https://etherscan.io/address/0x12b19d3e2ccc14da04fae33e63652ce469b3f2fd
Deployer contract: ...
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3answers
40 views
Solidity Compatibility Configuration
I am a cyber security analyst who is new to ethereum and working on a project to study crypto security. It's a series of 22 vulnerable smart contracts that you're supposed to exploit. For anyone who ...
0
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1answer
54 views
Deploying contract using byteCode
In that example you can see, how to deploy a new contract having just ABI and ByteCode
(uses for copy and deploy contracts from mainnet to your testnet for example).
/****** Deploying new contract ...
0
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1answer
46 views
Stop listening to / watching a contract (Web3)
Here is what I am trying to do (Web3 1.0):
Deploy a contract
Wait until Nth confirmation.
Then stop getting updates from the contract.
My code:
var myContract = new web3.eth.Contract(_abi, ...
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0answers
20 views
Error while deploying smart contract ,BadFunctionCallOutput
The log i am having while deploying a smart contract:
-------- load log data --------
user.address = 0x2154f8B602c470ae7F10f242DCC88Ae6221bb263
contract.address = ...
0
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1answer
9 views
linking the CoreContract and the ERC20 token contract
What is the standard way of making the link between our CoreContract and the ERC20Token contract used by the Core Contract? Are people used to use inheritance like: MyCoreContract is MyERC20Contract { ...
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0answers
60 views
Etherscan verification bytecodes don't match
Hi I'm trying to verify a token deployed at 0x87ab739464881af0011052d4ca0b0d657e8c3b48 in tx 0xbaa8f3fe86a35d2e0b7ed16b24782743e7dfb1eb21cfbb12253d0a50ef2ff365. (Mainnet)
I compiled and deployed it ...
0
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1answer
29 views
How to deploy A contract created by another contract in the browser?
Hey I am making a smart contract that create another smart contracts. Organization.sol create Session.sol . When I create a session using createdSession function I got it's address and I already had ...
0
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0answers
29 views
Geth - blockchain remains on genesis block, miner node doesn't mine
When attempting setup a local private PoW blockchain, an issue is arising where instead of mining new blocks, Geth instead hangs on the first attempt to 'commit new mining work'.
Between the two geth ...
0
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0answers
35 views
Is Geth v1.8.27 incompatible with Solidity 0.5.0?
I set up a private chain using geth v1.8.27, then deployed an erc20 contract in solidity 0.5.0 complied using the 0.5.7+commit.6da8b019 version of compiler. After the transaction was mined, I tried to ...
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0answers
15 views
Can't Connect Metamask to Ballot Dapp?
I want to connect Ballot Dapp to Metamask but it Shows "rpc error with payload" and "ALERT: Trying to call a function on a non-contract address".
0
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1answer
21 views
How do providers work?
Provider creates a link between me and a node in the mainnet/testnet, right? What will happen if say, one or more nodes of infura for example goes down. My app would still like to use that node but it ...
1
vote
1answer
91 views
Timeout exceeded during the transaction confirmation process. Be aware the transaction could still get confirmed
contract deploy , web3 version is 1.0.0-beta.52.
let {bytecode, interface} = require('./1-compile')
let Web3 = require('web3')
let web3 = new Web3('http://localhost:7545')
console.log('version :',...
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1answer
71 views
Access deployed smart contract using web3.js
I am new to Etherium smart contracts. I have created a smart contract and deployed it on https://kovan.etherscan.io. Now I am trying to access this contract from node js. below is my code but I am not ...
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2answers
26 views
Predefine set of transactions to be added as soon as a private chain is initialised
I need some transactions with predefined data that needs to be added immediately after the genesis block. Apart from actually making those transactions through Geth, is there a way to automate these ...
0
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1answer
47 views
Is it possible to modify privateFor addreses in a private Smart Contract (Quorum)?
I know how a private smart contract works providing a list of accepted addreses to privateFor property, but what if I want to disable (or enable) any address visibility?
Should I deploy a new Smart ...
0
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1answer
19 views
How to remove byte code of deployed smart contract which was deployed using Ropsten Test Network?
I 've deployed my smart contract on Etherscan using Ropsten Test network. I can see there is bytecode for my deployed contract on ropsten etherscan. I want to hide or don't want to show the bytecode ...
0
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1answer
33 views
Create a large number of contracts with different addresses
I'm developing a performance test where I check the time a gateway spends to find a contract in a blockchain. I'm using ganache-cli to simulate the blockchain, my doubts are:
1) Is it possible to ...
0
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1answer
28 views
Deploy Contract Syntax Error
I am testing a contract, when I run the truffle migrate command, in my deplyment contract located in the migrations folder the following error appears:
var HelloWorld=artifacts.require (“./HelloWorld....
