Fee and Smart Filters

Question

Can I set a minimum fee per smartfilter? so that it is customizable?

Comments

Can you please clarify what you mean by a "fee per smart filter". Do you mean a fee for creating the filter, or that the filter imposes a fee on particular types of transactions?

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Normally, you can set a rate for sending assets, but this rate is not customizable, I wanted to know if I had a filter to analyze the rate inserted in the transaction and accept or not depending on the value.

Answer 1

Yes, you can check the transaction fee (using raw blockchain units, which we recommend) as follows:

function filtertransaction()
{
  var bal=getfilterassetbalances("", true);
  var fee=0;
  for (var add in bal)
    fee-=bal[add];
 
  if (fee < 1000)
    return "Insufficient Fee!";
}

Comments

may seem like a stupid question, but how do I run a code like this? (several lines)

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If you're using multichain-cli, it's indeed tricky to use multi-line code. So just remove the new lines and use spaces instead, the JavaScript means exactly the same.

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when i send aprovefrom , return The transaction was rejected: 64: The transaction did not pass filter filter1: Insufficient Fee!

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You cannot approve a filter that would reject the transaction that performs the approval. So in this example you would need to have a fee of at least 1000 raw native currency units on the approve transaction.

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would I be able to mount this transaction at a higher fee, or just with the command settxfee?

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Yes, you could send the approval if you attach a higher fee to the transaction making the approval.