I have generated the session keys using the author.rotateKeys() RPC call. The keys are of type Vec<u8> and the length is 128 bytes.
I am trying to call the set_keys() method from pallet_session to a substrate node. I am using subxt for submitting extrinsics and I have generated a .scale file for interfacing. Now I am not sure how to create SessionKeys struct using the 128 bytes. When I hover over the SessionKeys struct I can see the following
https://docs.subsocial.network/rust-docs/latest/pallet_session/enum.Call.html#variant.set_keys
pub struct SessionKeys {
pub grandpa: Public,
pub babe: Public,
pub im_online: Public,
pub authority_discovery: Public,
} // size = 128 (0x80), align = 0x1
I can't see Public struct. How to instantiate it?
Also in runtime, i can see the following
impl_opaque_keys! {
pub struct SessionKeys {
pub grandpa: Grandpa,
pub babe: Babe,
pub im_online: ImOnline,
pub authority_discovery: AuthorityDiscovery,
}
}
How to convert a 128 bytes string into a SessionKeys struct?
let grandpa: substrate::runtime_types::sp_consensus_grandpa::app::Public =
substrate::runtime_types::sp_consensus_grandpa::app::Public::from(keys[0..32].to_vec());
let babe: substrate::runtime_types::sp_consensus_babe::app::Public =
substrate::runtime_types::sp_consensus_babe::app::Public::from(keys[32..64].to_vec());
let im_online: substrate::runtime_types::sp_im_online::app::Public =
substrate::runtime_types::sp_im_online::app::Public::from(keys[64..96].to_vec());
let authority_discovery: substrate::runtime_types::sp_authority_discovery::app::Public =
substrate::runtime_types::sp_authority_discovery::app::Public::from(keys[96..128].to_vec());
error[E0308]: mismatched types
--> main/src/substrate.rs:98:75
|
98 | substrate::runtime_types::sp_consensus_grandpa::app::Public::from(keys[0..32].to_vec());
| ----------------------------------------------------------------- ^^^^^^^^^^^^^^^^^^^^ expected `Public`, found `Vec<u8>`
| |
| arguments to this function are incorrect
|
= note: expected struct `sp_consensus_grandpa::app::Public`
found struct `Vec<u8>`
It is expecting a Public struct but I am passing a Vec<u8>. But how can I create a Public struct from a Vec<u8>?
