Linked Questions

9
votes
1answer
2k views

How to edit a contract that has already been deployed? [duplicate]

I have been writing my first few contracts. So, as I understand it, once you write, compile, and deploy your contract, the only way to then interact with that contract is via something like web3.js ...
0
votes
3answers
2k views

remove contract on ethereum blockchain using web3 [duplicate]

Is it possible to remove or update already deployed contract using web3 or truffle console or geth console?? if we know the contract details like address and ABI array, and we create a object of ...
1
vote
1answer
2k views

Adding Airdrop functionality to an already deployed erc20 smart contract [duplicate]

How can you add airdrop functionality to an already deployed smart contract on the mist wallet?
0
votes
2answers
2k views

Can you update contract token decimals and token name? [duplicate]

So I'd like to change token decimals and token name in a specific contract. Is it possible?
14
votes
0answers
794 views

How can I update contracts after they are created? [duplicate]

Once I create a smart contract and submit it to the blockchain, how can I go about updating it? I might want to do this because I have found a bug in the current version, I want to change some of the ...
1
vote
1answer
444 views

How to edit total supply after deployment? Parity [duplicate]

I was playing around in parity and deployed my own token. However,in total supply calculation I have made a mistake of not multiplying desired_supply * 10^decimals and ended up with less coins. How ...
11
votes
0answers
475 views

Guidelines for designing contracts to handle bugfixes? [duplicate]

Most introductory guides for contract design talk about creating "mortal" contracts (contracts that include some function that triggers a suicide() call), but what about if that contract was for some ...
0
votes
1answer
182 views

Solidity: Contract Inheritance and upgrade [duplicate]

This might have been answered somewhere else, but I couldn't find a 100% satisfying answer. I have the following contracts: Contract One {} Contract Two is One{} Contract Three is Two {} All the ...
0
votes
1answer
130 views

ERC20 smart contracts [duplicate]

I deployed an ERC20 smart contract, but I need to make some changes on it. How do I do that? Heard that it is not possible to do it, once the contract is deployed. An experienced developer must have ...
3
votes
0answers
117 views

eval type functionality [duplicate]

Languages such as javascript and Perl have eval statement. Is it possible to have some functionalty similar to eval in Solidity ? In particular, this is what I want to do: Suppose I deploy a ...
2
votes
0answers
67 views

How do I edit a contract already in the blockchain? [duplicate]

I have a contract currently in the chain and I want to add a feature. Do I need to make a brand new contract, or is there a better way? And if I have registered the contract with a name can I ...
0
votes
1answer
29 views

Can I modify contract? [duplicate]

I have issued a contract, but it doesn't contain subtract totalsupply logic, I want to modify the original contract, how can I do that with same contract address? Does some one know? Please help. ...
2
votes
0answers
57 views

Updateable contract design: Database contract only accessible through setters and getters? [duplicate]

Hey I'm designing a Dapp that has a database contract and a contract with the logic side. The only way I can see of making this work is through having the logic contract make a call to a getter or ...
1
vote
1answer
41 views

If it's possible to change solidity code once deployed in ethereum blockchain [duplicate]

I deployed solidity code in ethereum blockchain. Now my client ask to add some function in the deployed solidity code and need update that code in same contract address but i do no if it's possible or ...
1
vote
0answers
44 views

Smart contract vulnerability handling [duplicate]

Any piece of code will have some degree of vulnerability, and any such code that attracts any level if attention is bound to be exploited through these vulnerabilities. In conventional (centralised)...

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