Add runtime-api call to get OmniAccount

[Kailai-Wang]

Context

As topic, locally tested OK

[linear]

P-1118 Add an RPC getter to get the derived OmniAccount address

[silva-fj]

👍🏼

[jonalvarezz]

Thank you, Kai! 🚀

I can see it locally from the p-js explorer:

However, I can't reach it programmatically. It should be on api.call, shouldn't it?

I also tried forcing a client-api update off your branch to get the latest types, but i can't see it either:

I'm not sure if this is really part of the scope of this PR, but wanted to bring it up in case we are missing anything.

[Kailai-Wang]

@jonalvarezz api.rpc requires integration in the client (node), runtime-api has/should have the advantage that it's exposed automatically by substrate-based node.

Can you try JSON-RPC with state_call or api.rpc.state.call? Method should be something like OmniAccountApi_omni_account

[jonalvarezz]

@jonalvarezz api.rpc requires integration in the client (node), runtime-api has/should have the advantage that it's exposed automatically by substrate-based node.

Yeh exactly, I was expecting it to be exposed automatically, but I can't find it. I'm not sure what I'm missing.

Can you try JSON-RPC with state_call or api.rpc.state.call? Method should be something like OmniAccountApi_omni_account

Sweet, this one worked:

const account = await api.rpc.state.call('OmniAccountApi_omni_account', api.createType('CorePrimitivesIdentity', {
  Substrate:
    '0x3a2647fe0ecd1fe0d450fd8650cd8bf3536ecac77b6e8ec2df1b5f5fc9d62931',
}).toHex());

I guess we can live without this types meanwhile 🤔

[Kailai-Wang]

Cool then I'll merge it