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NNS user check #3749

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Merged
roman-khimov merged 1 commit into from
Dec 22, 2025
Merged

NNS user check #3749

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23 changes: 23 additions & 0 deletions pkg/morph/client/nns.go
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,29 @@ func (c *Client) NNSContractAddress(name string) (sh util.Uint160, err error) {
return nnsReader.ResolveFSContract(name)
}

// HasUserInNNS checks NNS for the given domain name and address,
// returning true if such record exists.
func (c *Client) HasUserInNNS(name string, addr util.Uint160) (bool, error) {
var conn = c.conn.Load()

if conn == nil {
return false, ErrConnectionLost
}

nnsHash, err := c.NNSHash()
if err != nil {
return false, err
}

reader := nns.NewReader(invoker.New(conn.client, nil), nnsHash)
hasNeoRecord, err := reader.HasNeoRecord(name, addr)
if err != nil {
return false, fmt.Errorf("resolve users for %q in NNS: %w", name, err)
}

return hasNeoRecord, nil
}

// NNSHash returns NNS contract hash.
func (c *Client) NNSHash() (util.Uint160, error) {
var conn = c.conn.Load()
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