I think what you might want is this: https://docs.swmansion.com/protostar/docs/tutorials/testing/cheatcodes/deploy-contract But you need to "decompose" the deploy-contract into `declare` , `prepare` and `deploy` - then you will have the contract address before deployment after `prepare` call. Having it, you can call `prank` with the obtained address and you should be good to go.

_This answer was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Newton

Hi team. How can I use start_prank with deploy_contract? Since get_caller_address() works in constructor now, I need a way in protostar to set caller address without having contract address. May be a 'caller' argument in deploy_contract cheatcode works best

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

How can I use start_prank with deploy_contract?

```
...
const { available, connect, refresh, disconnect } = useConnectors()

    const connectors = [
      new InjectedConnector({ options: { id: "argentX" } })
    ];

return(
  <button onClick={() => connect(connectors[0])}>
    Connect {connectors[0].id()}
  </button>
)
```
any idea why this code doesnt connect to argentX in brave?

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Any idea why this code doesn’t connect to argentX in brave?

I’m signing a message using 
```
account.signMessage(data) 
```
and immediately verifying the signature with the same data and it’s returning false. I don’t see any issue open on this subject on starknet.js. Is this something you’ve already encountered by any chance?

here’s the code:

```python
const data = { types: proposeTypes, primaryType: 'Propose', domain, message };
const sig = await user.account.signMessage(data);
let res = await user.account.verifyMessage(data, sig); // returns `false`
```

I see that’s the expected way to use signMessage through the tests (https://github.com/0xs34n/starknet.js/blob/b20819424dea824c96ac31e0542733c84d87d441/__tests__/account.test.ts#L125-L126).

So I guess something’s going wrong when it comes to either hashing the data and signing it or hashing the data and verifying the signature?


btw: for those wondering: `verifyMessage` only works if the account is deployed: if you’re doing this with an account not deployed (basically just a keypair) then this won’t work :)

signing a message using account.signMessage(data) | starknet.js

I'm currently trying to transpile an ERC 721 contract I have that uses openzeppelin libraries, is that possible?

Howdy.


I am trying to dev against the starknet devnet to build my frontend and am experiencing some issues. With argent, it seems that the version in the chromestore isn't up to date with the devnet's fee token, so I can create an account and fund it, but still not be able to do any transactions.


When I try to build from source, I get an error about something involving a react server or something.


Trying braavos, I am able to transact against dev net (invoke method calls) but calling views seems to be going against a wrongly set provider. So when I connect with the wallet, all my calls get an error that 'the contract isn't deployed' because it is checking against a goerli-testnet provider rather than my devnet. I can set a default provider manually, but it gets overwritten when I access the wallet.


I am hoping that there is maybe a third wallet or something that can help me sidestep the concern. But perhaps my understanding of the situation is misguided. I am using starknet-react, if that maybe is contributing to the issue.


﻿  



ㅤ
_This question was originally posted on [Triality](https://triality.org/question/926)_

How do I develop against cairo devnet with browser wallets?

Another question I have is:

**What's easier, adapt the create2 trick in Solidity then transpile or transpile first then adapt in Cairo?**

---

### *From Newton AI:*

*"Create2" is a feature in Solidity, the programming language used to write smart contracts for the Ethereum blockchain. It allows the creation of new contract accounts using a deterministic algorithm, rather than having to send a transaction to create the contract like with the original "create" function. This can be useful in certain situations, such as when creating a contract that is intended to be deployed at a specific address.*

*Transpiling is the process of converting code written in one programming language into another language. This can be useful if a piece of code needs to be run on a platform that only supports a different language, or if it is desired to use a different language's features or syntax.*


Did you change the factory/create2 part (to compute pool addresses)?

For an array in Cairo, since there is no inherent structure, removing an item from an array means all of the other items after the removed item must be moved, since this is on the blockchain that can be extremely costly. What is the best way to handle this? Should the removed item just be replaced with an empty placeholder? What is the right way to handle this?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/224)_

Cairo Array Item Removal

Do any of you know where I can find the list of the decorators available in Cairo, please?

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