Query Trusted Circle Whitelist

query_whitelist.rs

use cosmwasm_std::{Addr, QuerierWrapper};
use cw4::Cw4Contract;

fn assert_membership(querier: &QuerierWrapper, contract: &Addr, account: &Addr) -> StdResult<()> {
    let contract = Cw4Contract(addr.clone());
    if whitelist.is_member(&deps.querier, sender)?.is_none() {
        return Err(StdError::generic("unauthorized"));
    }
    Ok(())
}
  
pub fn execute(
    deps: DepsMut,
    _env: Env,
    info: MessageInfo,
    msg: ExecuteMsg,
) -> Result<Response, ContractError> {
    let whitelist: Addr = WHITELIST.load(deps.storage)?;
    assert_membership(deps.querier, &whitelist, &info.sender)?;
    
    // process message...
    Ok(Response::default())
}