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Using only command line (no GUI), how can I create watch only wallet based on descriptor and get first unused address?

This is the descriptor:

"wpkh([00000000/84h/0h/0h]xpub6DP....xyz/0/*)#checksum"

this is the bitcoin-cli command to list addresses based on this descriptor:

./bitcoin-cli deriveaddresses "wpkh([00000000/84h/0h/0h]xpub6DP....xyz/0/*)#checksum" "[0,2]"

How to create actuall watch only wallet so that I can get automatically first unused address?

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First create a descriptor wallet with createwallet:

bitcoin-cli -named createwallet wallet_name=mywallet descriptors=true

This will make a descriptor wallet named mywallet.

Then import a descriptor into that wallet using `importdescriptors:

bitcoin-cli -rpcwallet=mywallet importdescriptors '[{"desc": "wpkh([00000000/84h/0h/0h]xpub6DP....xyz/0/*)#checksum", "range": [0, 1000], "timestamp": "now", "internal": false, "watchonly": true, "active": true}]

This will import the descriptor with an initial keypool of 1000. Any new bech32 addresses you request (with getnewaddress or from the GUI) will come from this descriptor.

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  • The second command ends with error: "Cannot import descriptor without private keys to a wallet with private keys enabled".
    – urza.cc
    Jan 19, 2021 at 12:34
  • 1
    Ah, the first command must contain: ddisable_private_keys=true
    – urza.cc
    Jan 19, 2021 at 12:37
  • ./bitcoin-cli -named createwallet wallet_name=mywallet descriptors=true disable_private_keys=true
    – urza.cc
    Jan 19, 2021 at 12:38

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