Withdraw cycles with deleting canister

Developers Command Line Tools
1

I was wondering if there is functionality for transfering/withdrawing cycles from a cansiter without

  • Deleting canister
  • Custom canister code that sends cycles on a request to another canister

Not a big deal, just curious. I put a few too many cycles in certain canisters and would rather not delete/remake it or write some custom code to do this

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2

I usually put something like this in all my canisters:

public func wallet_receive() : async  Nat  {
      let amount = Cycles.available();
      let accepted = amount;
      let deposit = Cycles.accept(accepted);
      accepted;
  };

    public shared(msg) func wallet_send(amount : Nat, principal: Principal) : async  Nat  {
        if(msg.caller == __admin){
            let available = Cycles.available();
            if(available >= amount){
                Cycles.add(amount);
                let remote : actor {wallet_receive : () -> async Nat} = actor(Principal.toText(principal));
                let result = await remote.wallet_receive();
                return result;
            };

        };
        return 0;

    };

When the cycles ledger goes live you’ll be able to just deposit them to a ledger account straight from the canister which will be easier.

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