At the time of creating the user and keys, I need a way to add a field or fields related to this particular blockchain network, such as role. Is there a solution?

  • 2
    Please provide more context. How are you creating these users? In a pallet? What are you trying to do that needs roles?
    – Bruno
    Oct 21, 2022 at 16:27
  • @Bruno In fact, I want to have a role for each role of user so that I can limit a pellet methods to this roles. Oct 22, 2022 at 14:25
  • Have you read about the origin system?
    – Nuke
    Oct 28, 2022 at 7:25

1 Answer 1


So if you're building a pallet, you could have it update the frame system data field in the AccountInfo:

/// Information of an account.
#[derive(Clone, Eq, PartialEq, Default, RuntimeDebug, Encode, Decode, TypeInfo, MaxEncodedLen)]
pub struct AccountInfo<Nonce, AccountData> {
    /// The number of transactions this account has sent.
    pub nonce: Nonce,
    /// The number of other modules that currently depend on this account's existence. The account
    /// cannot be reaped until this is zero.
    pub consumers: RefCount,
    /// The number of other modules that allow this account to exist. The account may not be reaped
    /// until this and `sufficients` are both zero.
    pub providers: RefCount,
    /// The number of modules that allow this account to exist for their own purposes only. The
    /// account may not be reaped until this and `providers` are both zero.
    pub sufficients: RefCount,
    /// The additional data that belongs to this account. Used to store the balance(s) in a lot of
    /// chains.
    pub data: AccountData,

An example of a pallet that does this is pallet balances:

type AccountStore: StoredMap<Self::AccountId, AccountData<Self::Balance>>;

That is why when you look up an account on PolkadotJs Apps you will see the account balance information there as well.

If you're looking to add roles take a look at this post:

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