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polkadot_sdk_frame::prelude::frame_system

Function ensure_signed_or_root

Source 
pub fn ensure_signed_or_root<OuterOrigin, AccountId>(
    o: OuterOrigin,
) -> Result<Option<AccountId>, BadOrigin>
where
    OuterOrigin: Into<Result<RawOrigin<AccountId>, OuterOrigin>>,
Expand description

Ensure that the origin o represents either a signed extrinsic (i.e. transaction) or the root. Returns Ok with the account that signed the extrinsic, None if it was root, or an Err otherwise.