Very Basic Question about API

Ardor and Nxt Wallet Users
1

  1. When I use server like https://ardor.jelurida.com/nxt , it is safe?
    I mean if i don't use localhost, secret phrase will not leak ? right?
    Ex. https://ardor.jelurida.com/nxt??chain=2&requestType=sendMoney&secretPhrase=IWontTellYou&recipient=ARDOR-4VNQ-RWZC-4WWQ-GVM8S&amountNQT=100000000&feeNQT=1000000&deadline=60

  2. What api can know required time for generating next block?

  3. What's the difference between ecBlockHeight and default height?
    I cannot understand economic cluster BlockHeight.

2
  1. If you are sending the secret phrase through the API don't trust any external node but yours. I recommend running your own node.
  2. I'm not sure to understand your question. If you are referring about the expected time for the next block I guess your best bet would be to use the https://ardordocs.jelurida.com/Forging#Get_Next_Block_Generators API call and check the first generator's hit time.
  3. The economic cluster parameters allow to make sure a given block is present at a given height on the blockchain when sending a transaction. This is useful to detect forks so your transaction won't end up on a forked blockchain.
3

Thanks for your reply :slight_smile:
Ardor Lite Wallet which is made by MRV777, use external node API.
You mean, Ardor Lite Wallet also dangerous?

4

I didn't say that.

A proper wallet won't be sending the secret phrase to any node as the transactions should be signed locally and then just broadcasted. That's how the built-in reference wallet works. Ardor Lite claims the same on its web page and it's an open source project, so you can do your own research if you like.

5

I didn't know that lol.
I need more study. Thanks!!