Implementation of getAccountKey() in DAppSigner

[regcs]

Is your feature request related to a problem? Please describe. A clear and concise
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I wanted to extract the public key of the connected account via the getAccountKey() method. However, I encountered a Error: Method not Implemented. Obviously, this method is not implemented here:

hedera-wallet-connect/src/lib/dapp/DAppSigner.ts

Line 114 in 88a3482

throw new Error('Method not implemented.')

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I would like to have this implemented and wonder what reason there is, that this was not implemented initially. Anyone, who can comment on this?

Describe alternatives you've considered A clear and concise description of any alternative
solutions or features you've considered.

None

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None

[AdrianKBL]

Not sure why is not implemented @regcs , I'm gonna ping @hgraphql , in the meantime you could get that value doing a fetch to the MirrorNode with the account logged.

[regcs]

Thanks, Adrian. I am using the mirror node as a workaround already now. It's not super urgent, I just saw it's not implemented and thought it might just have been forgotten. Thanks for pinging @hgraphql 😊

[tmctl]

hey @regcs, would you be willing to make a PR to implement this function?

[regcs]

Hi @tmctl, I have already worked on this and obtained some more understanding on the matter. I probably ran into the same issues as the initial developer who decided to not implement the method. Since we cannot derive the public key from the account ID, there are five options I can imagine:

1. Query the account information from a consensus node (requires user interaction & costs the user $0.0001)
2. Query the account information from a mirror node (requires no user interaction, but a mirror node provider input)
3. Send a sign() request to the wallet and extract the public key from the signature (requires user interaction)
4. Change the CAIP definition for hedera to include the public key of the account
5. Implement a separate mechanism to exchange the information between dApps and wallet providers

IMO, options 1 to 3 are not really beneficial and can be handled by the developers themselves. Options 4 to 5 would require more efforts and maybe not an efficient time investment to solve this small issue.

What are your opinions on that?

[gregscullard]

@regcs could you clarify the need here, I'm unsure what exactly you're looking for, is it

• Getting the public key for any account via Hedera Wallet Connect
• Getting the public key of the account currently used by a wallet connected to a dApp via Hedera Wallet Connect

Feel free to expand with user stories such as the below, these are often useful in helping others understand what you have in mind

• As a dapp developer, I want to be able to retrieve the public key of the connected account

[regcs]

@gregscullard Thanks, there is not much to expand on from my side. It's exactly what you wrote as a user stories.

The origin was, that the DAppSigner has a method prepared for that and I expected that wallet connect would be able to output the public key of the connected account without querying a mirror or consensus node.