Send Notification

Developers
1

Dear All,

How to send notification when i complete a transaction ?
When i send only the blockheight it is giving error?

Here
“from_subaccount”:,
“to_subaccount”: ,

What these params takes as value? When i send account or principal it is giving error?

var args = {
“block_height” : result.height,
“max_fee”: {“e8s”: 1_000_0},
“from_subaccount”:,
“to_subaccount”: ,
“to_canister”: Principal.fromText(“eza5f-fqaaa-aaaaf-baeba-cai”)
};

let result = await ledgerActor.notify_dfx(args);