Questions tagged [openzeppelin-sdk]
The OpenZeppelin SDK is a platform to develop, deploy and operate smart contract projects on Ethereum and every other EVM and eWASM-powered blockchain.
17
questions
6
votes
2
answers
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How to get implementation address after deployProxy()? (@open-zepplin/hardhat-upgrades)
I'm deploying my token using the proxy pattern via hardhat-upgrades.
const TokenFactory = await ethers.getContractFactory('MyToken');
const token = await upgrades.deployProxy(TokenFactory);
const ...
- 95
2
votes
1
answer
970
views
Cannot convert undefined or null to object after compile
My smart contract project has been initialised with oz init and I have a single contract. After running oz compile I get an error saying Cannot convert undefined or null to object
complete output of ...
- 2,153
0
votes
1
answer
685
views
npm install - - global @openzeppelin/cli not working
Guys I have node js and npm installed.
But when I try to install OpenZeppelin sdk using the command:
npm install --global @openzeppelin/cli
It doesn't install. I don't know what is wrong. But I think ...
12
votes
2
answers
2k
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Pros and Cons of smart contract upgradable patterns
There have been quite many arguments around how to achieve smart contract updates like Upgradeable smart contracts.
I feel Proxycontract with Delegate-call is currently the most famous one. But aside ...
- 467
2
votes
2
answers
646
views
ERC20 not recognized by TokenTracker
I have deployed ERC20 with reference to
// File: openzeppelin- zos/contracts/token/ERC20/DetailedMintableToken.sol
I called the initialized function with owner, name, symbol and decimal value. ...
- 421
4
votes
1
answer
214
views
couldnt understand implementaion of UpgradeabilityProxyFactory
I want to use UpgradeabilityProxy provided by zeppelin, they have one method createProxyAndCall which they say initialize the new implementation with data parameter we provided which looks like:
* ...
- 421
1
vote
1
answer
165
views
Error installing [email protected]
I am working through the tutorial for zeppelin-os found here: https://docs.zeppelinos.org/docs/linking.html
and have an error when running zos create
Could not find file zos-lib/contracts/...
- 123
0
votes
1
answer
85
views
Issue in truffle unbox zeppelinos/zepkit
As it is visible in the screenshot, I did not get a green check in the "setting up box". Anyone know why it is happening and will it cause any issue in the future?
- 325
2
votes
1
answer
2k
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ZepplinOS: Where to set owner of the contract?
ZepplinOS contracts do not use constructors in it's zos implementation, and instead uses an initialization function that it imports from zos-lib/contracts/Initializable.sol package.
In order for the ...
- 303
4
votes
1
answer
166
views
Does function order also matter when writing upgradeable smart contracts?
The ZeppelinOS docs clearly explain the importance of state variable order when upgrading smart contracts, but say little on whether the same rules apply to functions.
- 16.8k
2
votes
1
answer
217
views
zeppelinOS add parameter to initialize()
I am following the zeppelinOS documentation here and sumarized you execute:
zos init my-project #init zeppelinOS
zos add MyContract #register
zos session --network local --expires 3600 #open session
...
- 719
5
votes
2
answers
1k
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Zeppelin OS: revert Cannot call fallback function from the proxy admin
I have been attempting to create a simple upgradable contract using Zeppelin OS:
Following the tutorial I have been able to:
- Create a new contract
- Deploy it using zos push
- Create the proxy ...
- 161
1
vote
1
answer
526
views
Copy state from one contract to another
I am experimenting with the zeppelin os upgradeable contracts but what I only need for my contract is to keep one specific state array when I deploy to another address. Avoiding proxy issues, upgrade ...
- 165
0
votes
2
answers
211
views
Create and Run an AllowanceCrowdSale With Zeppelin-OS Contracts
I use the openzeppelin library:
https://github.com/OpenZeppelin/openzeppelin-solidity/tree/v1.12.0
token
I create a BurnableToken:
pragma solidity 0.4.24;
import 'openzeppelin-solidity/contracts/...
- 439
1
vote
1
answer
158
views
Creating new proxy using Zeppelin OS always use the same amount of gas
I'm building upgradeable infrastructure for the project and noticed that creation of proxy using Zeppelin OS always uses the same amount of gas.
How I understand, during the setting implementation ...
- 195
2
votes
0
answers
127
views
ZeppelinOS: zos push --network mainnet returns nonce too low
Im trying to deploy a set of contracts.
These are the steps I've followed (the same steps work fine in infura v3 ropsten):
zos add
Result:
{
"name": "0.1.0",
"version": "0.1.3",
"contracts"...
- 341
1
vote
0
answers
165
views
How to Deploy non-Migratable Contract in Zeppelin OS?
I am using Zeppelin OS to create a migratable contract MyContract, which will be imported into another contract Foo. Foo calls the baz() function of MyContract, so when MyContract is upgraded, Foo ...
- 1,167