Questions tagged [contract-deployment]
The act of pushing a compiled smart contract in byte code to the Ethereum blockchain.
950
questions
1
vote
0answers
16 views
Is there a way to deploy a contract using bytecode only (to Ropsten …)?
One solution on medium.com describes how to do that via myetherwallet but it's the old verion of myetherwallet where you can switch between ropsten/mainnet - right now I can't find how to switch to ...
-1
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0answers
23 views
How to deploy smart-contract without internet? [closed]
I need to deploy smart-contract on solidity without internet. How I can do it?
I use private network and geth.
P.S. No Ganache and Mist, please.
1
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0answers
17 views
Address to create a contract
This query is for informational purposes, with something that has had me in doubt all night.
I am trying to send a self-signed transaction for the creation of a contract
My Tx transaction to send is
...
-1
votes
1answer
33 views
Using await with web3 function calls [closed]
I have just implemented a tweak to make my asynchronous call run sequentially, however it is messy solution. I have got the following code:
async function myClick() {
calculateAmounts();
...
0
votes
1answer
57 views
Unable to call methods on my deployed contract
Problem: All method calls to my deployed contract return null
Versions:
Geth: 1.9.9-unstable
Git Commit: c2d65d34d5c6f27b8d1a52280964023a3eefd66e
solc:
Version: 0.5.13+commit.5b0b510c....
0
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0answers
25 views
Why does this code outputs error:“unknown account”?
Python code:
from web3 import Web3
import json
web = "http://10.0.141.114:8545"
web3 = Web3(Web3.HTTPProvider(web))
abi=json.loads('[ { "constant": false, "inputs": [ { "name": "_cad_number", "type":...
0
votes
1answer
33 views
How to download contracts by address from Etherscan using web3.js
I want to download all contracts (open source code) from etherscan.io using Web3js. Etherscan gives only the list of such verified open source contract with txHash, name, and their addresses. Is there ...
0
votes
1answer
17 views
Could not deploy contract with valid data
I have downloaded contracts with their abi and json. I have to deploy them. when i extract bytecode from downloaded files and then assign it to my data variable to deploy contract whic gives following ...
1
vote
1answer
28 views
How do you implement a front-end contract with back-end functionality in Solidity?
How do you create a front end contract that calls a back end with the idea of being able to upgrade or change the back end contracts without having to redeploy the front end contracts?
0
votes
2answers
32 views
Not able to get deployed address of smart contract
Error: connect ECONNREFUSED /home/sanya/.ethereum/geth.ipc
at PipeConnectWrap.afterConnect [as oncomplete] (net.js:1106:14)
errno: 'ECONNREFUSED',
code: 'ECONNREFUSED',
syscall: '...
0
votes
0answers
23 views
Easiest way to deploy contracts from Trezor/ Ledger?
I know about Remix and that you can connect your hardware wallet with MetaMask, but, as of Nov 2019, I get this error many times:
creation of Contract errored: Error: TransportError: Failed to sign ...
0
votes
0answers
17 views
Does a contract creation failure leave the target address with nonce 1?
When contracts are created, they start with nonce 1 not nonce 0. This is since the implementation of EIP-161.
The ETH wiki page on nonces outlines what happens when a contract A tries to create a ...
0
votes
1answer
28 views
Kovan contract creation gas limit behavior
I have a fairly large contract that I must create on Kovan network for testing. There is fairly weird behavior occurring when I am trying to create the said contract.
Behavior being: whenever ...
0
votes
0answers
15 views
cloning div container number of deployed child contracts time and put their data inside div container
Sorry for the silly question. I have a div container "product-card" , I want to loop the number of my deployed smart contracts time. every time when I loop I want to clone this div container and ...
0
votes
2answers
66 views
app.vote(1, {from: web3.eth.accounts[0] }) not working
I am following a tutorial from Dapp University about building Election Smart Contract. When I run this command in the console:
app.vote(1, {from: web3.eth.accounts[0] })
I get the following error:
...
0
votes
1answer
19 views
Is there still a contract size limit?
I have a contract on chain and the deployed bytecode is 36.201KB, but EIP 170 limited the contract size to 24.576KB. Can anyone tell me how I was able to deploy a 36.201KB contract? https://etherscan....
0
votes
1answer
43 views
Cannot deploy new contracts with pending transactions (Ropsten)
I have a very strange and annoying problem. I am trying to deploy a new contract however it just keeps cycling. I have the same problem on the POA testnet and on Ropsten. Please see below:
I have ...
0
votes
2answers
20 views
Set contract storage directly at deployment
Is there a way to pre-define a contracts storage when deploying it?
Say I want a mapping to be filled with 1000 entries but want to avoid having to pay gas for adding every entry on its own.
Since ...
0
votes
1answer
49 views
Need a guide to access my ropsten test network contracts through my command line and not remix
I have written and published a contract on the ropsten test network using remix. Now I want to access the functions of the smart contract from my command line (My PC) and not the remix IDE. Is there a ...
1
vote
1answer
22 views
How to permission (disallow) smart contract deployment on private Ethereum network?
On a private Ethereum network, what is the best way to permission the deployment of who (and what) users can deploy?
One obvious way would be increasing the gas cost of CREATE opcode. Yet, I do not ...
4
votes
0answers
43 views
What's the point of Truffle Migrations?
I've been reading a few articles and StackExchange posts (e.g. What are truffle migrations?) about Truffle Migrations, but I still don't get it: why do we need them?
It seems they do only one thing (...
0
votes
1answer
28 views
Contract not deploying with web3
I'm writing a web-based DApp with web3, and am trying to get my JavaScript to deploy a contract.
I've set up the abi, contract, and bytecode as follows:
const trade_abi = [ ... not shown: ABI copied ...
0
votes
1answer
39 views
Transaction being reverted by EVM during contract creation (Web3 / ethereumjs-tx)
Hey guys I am running into an issue deploying a smart contract with Web3 to the Ropsten network. The code is running seemingly correctly, and there is a contract address being created, but if I check ...
2
votes
1answer
27 views
Is the contract metadata automatically deployed on Swarm?
From the solidity docs on contract metadata:
You have to publish the metadata file to Swarm (or another service) so that others can access it. You create the file by using the solc --metadata ...
0
votes
1answer
29 views
is it possible triggering a contract on specific date? [duplicate]
Can I trigger a smart contract on specific date? If I deploy a contract today and I want execute some function of that contract tomorrow without any exteral intervention. Is it possible?
3
votes
2answers
100 views
Drizzle and Contract Instances
I am currently developing a dApp with Drizzle on top of ReactJS.
My project consists of, basically, 8 .sol files. 4 of them are just abstract contracts that include the functions, structs etc. for ...
0
votes
0answers
32 views
Deploying contract using web3js but failed
I am a beginner for solidity 👶
My question about deploy using with web3js.
I have two smart contract and in main contract I have a createContract function which is create a new subtoken contract ...
0
votes
0answers
28 views
Undefined Contract
I am finally able to come up with a compilable code. As I attempt to verify the contract, the Remix - Ethereum output is "undefined". Someone advice me on what to do. My ABI is as follows:
[
{
"...
0
votes
1answer
35 views
How to remove 2 contracts
I have 2 contracts to be removed
0xc4ba2bbfc1d35d4a6dc37d7764081a1880e5a281 unable to verify source for some reason.
0xf3db7f7f6419bf537fd24eb530b6eace38850c0c contains 0 tokens.
How do i do this?
...
0
votes
1answer
79 views
Contract ERC20 creation “pending”
I have created a new ERC20 contract using this generator https://vittominacori.github.io/erc20-generator/
The status is "pending" , 21 hours at this time. Some explanation?
Previously, I tried it ...
0
votes
2answers
129 views
Remix Deploy Error encoding arguments
I'm building a simple fund raising smart contract and having problems deploying this through Remix. I'm wanting to set the "goal" and "minimum contribution" values (in wei) during the contract ...
0
votes
1answer
32 views
Is it possible to deploy the ERC721 token on private network for free?
I created a private network with 3 instances (one controller, 2 nodes) based on PoA on AWS.
And I checked if my custom ERC721token is deployable by using Ropspan test network.
so I have a working-...
0
votes
2answers
84 views
gas required exceeds allowance when deploying ERC721token
I am trying to deploy Smart-contract(ERC721) on my private ethereum network.
But I have this issue.
Here is my genesis.
{
"config": {
"chainId": 3333,
"homesteadBlock": 1,
...
3
votes
1answer
202 views
TypeError: Indexed expression has to be a type, mapping or array (is function (address) view external returns (string memory,string memory…)
I have 2 contracts first one is sub second one is main .
First i deploy main and create a new subtoken.
Then I want to access my maincontract in subToken contract but I cant :(
When I compile this ...
0
votes
1answer
31 views
Why does etherscan show such unusual results for the creation of this specific contract?
Normally, when I browse for the address of a specific contract and then click the contract-creation transaction label, I get:
To: [Contract 0x... Created]
For example, consider the BNB contract at ...
1
vote
1answer
49 views
How to construct deployable bytecode from runtime bytecode?
For example I want to redeploy/clone a contract to another address but don't have the original source code, so I only have the runtime bytecode stored on the blockchain. If I try to deploy the runtime ...
0
votes
1answer
82 views
How to unlock account to deploy contract without using personal.unlockAccount()?
When I have account keystore file on geth node http://192.168.43.201:8545 , I can deploy a contract like below:
const web3 = new Web3('http://192.168.43.201:8545');
...
const contract = new web3.eth....
2
votes
0answers
133 views
Contract not deploying on private network
I have a smart contract a little bit like this:
pragma solidity ^0.5.10;
contract sc {
struct element {
uint96 firstKey;
uint96 secondKey;
bytes32 firstData;
...
-3
votes
2answers
58 views
Trying to create an instance of an abstract contract
pragma solidity ^0.5.0;
import 'https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/math/SafeMath.sol';
contract SubToken{
mapping(address => uint) balances;
...
0
votes
2answers
34 views
what is the transferfrom event signature?
I am currently writing a code that list all types of transactions in a given contract . my plan is to just check for all logs whether the topics[0] == an event signature of a function. and now i am ...
0
votes
1answer
57 views
Web3 0.20 contract deployment
environment: Web3 0.20.7,Infura,node.js(backend)
Deploy contract with Web3 0.20.7
pragma solidity ^0.5.1;
contract Bang{
address holder;
address proxy;
constructor (address _holder, ...
2
votes
0answers
36 views
deploying Solidity contract in Remix
I am trying to deploy Solidity contract in Remix for my study purpose.
However, I failed to deploy SmartMesh contract in Remix (below, I attach the link for the code):
https://etherscan.io/address/...
0
votes
1answer
43 views
Deploy contract didnt resolve the promise
im facing a problem deploying a simple smart contract.
When i use ganacha-cli, the program enter in a loop of confimation event, counting from 1.
Thats the first problem.
Output:
Account: ...
0
votes
1answer
23 views
Smart Contract Deployment issue
I am making a smart contract with a Transfer function.
function transfer(address _to, uint256 _value) public returns(bool success) {
//checking whether sender has enough number of tokens
...
1
vote
2answers
119 views
How to get transaction status (programatically, not etherscan)?
I have a problem when I interact with an Smart Contract, from a javascript webapp. I can execute the transaction correctly when the status is confirmed, but I cannot get any error response when it ...
0
votes
1answer
125 views
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
vote
1answer
58 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 ...
1
vote
0answers
35 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: '...
0
votes
0answers
69 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 ...
2
votes
3answers
239 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 ...
