getXPUB

Returns a BIP-32 extended public key (XPUB) for a derivation path. Positional arguments — identical to v1.

Signature

await dcent.getXPUB(key: string, bip32name: string): Promise<V1Response>

Requirements

Minimum firmware. The two models are on different version lines, so DCENT Biometric Wallet and DCENT X are listed separately (the numbers are not comparable across models). Below this the request returns the firmware-update error (5005) and the bridge prompts to update.

Method	DCENT Biometric Wallet	DCENT X
getXPUB	1.2.0 or higher	1.0.0 or higher

Parameters

Field	Type	Notes
key	string	BIP-44 key path with at least two levels (e.g. m/44'/0') — DCENT X rejects a shorter path.
bip32name	string	BIP-32 master-key derivation string. Required by the TypeScript signature. A missing or non-string value is normalised by the bridge to '', which is sent to the device as is. Pass the derivation string your chain expects (e.g. 'Bitcoin seed') explicitly.

await dcent.getXPUB("m/44'/0'/0'", 'Bitcoin seed')

Response

{
  "header": { "version": "1.0", "status": "success", "response_from": "getXPUB" },
  "body": {
    "command": "getXPUB",
    "parameter": {
      "public_key": "xpub6C…"
    }
  }
}

Field	Type	Description
public_key	string	An extended public key in Base58Check form. On DCENT X with bip32name: 'Bitcoin seed', the version follows the path's purpose: m/49' gives ypub… (testnet upub…), m/84' gives zpub… (testnet vpub…), and other paths give xpub…. The device sends the Base58 string as bytes, and the bridge returns it as text.

info

Unlike getAddress, getXPUB takes positional arguments (not a chainId object).

• getAddress
• getAccountInfo