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evmGetPublicKey

Ethereum: get public key​

Retrieves BIP32 extended public derived by given BIP32 path. User is presented with a description of the requested key and asked to confirm the export.

const result = await HardwareSDK.evmGetPublicKey(connectId, deviceId, params);

Params​

Optional common params

Exporting single public key​

  • path - required string | Array<number> minimum length is 3. read more
  • showOnUKey - optional boolean determines if address will be displayed on device. Default is set to true
  • chainId - optional number identifies the target Ethereum network and helps distinguish different chain configurations. Reference.

Exporting bundle of public keys​

  • bundle - Array of Objects with path, coin fields

Example​

Return the public key of an Ethereum account:

HardwareSDK.evmGetPublicKey(connectId, deviceId, {
  path: "m/44'/60'/0'/0/1",
  showOnUKey: true,
  chainId: 1,
});

Return a bundle of public keys for multiple ethereum accounts:

HardwareSDK.evmGetPublicKey(connectId, deviceId, {
  bundle: [
    { path: "m/44'/60'/0'/0/1", chainId: 1 }, // account example 1
    { path: "m/44'/60'/0'/0/2", chainId: 1 }, // account example 2
    { path: "m/44'/60'/0'/0/3", chainId: 1 }, // account example 3
  ],
});

Result​

Result with only one public key

{
    success: true,
    payload: {
        path: Array<number>, // derivation path
        xpub: string,        // xpub in legacy format
        publicKey: string,   // BIP32 serialization format
    }
}

Read more about BIP32 serialization format

Result with bundle of public keys in the same order as the request

{
    success: true,
    payload: [
        { path, xpub, publicKey }, // account example 1
        { path, xpub, publicKey }, // account example 2
        { path, xpub, publicKey }, // account example 3
    ]
}

Error

{
    success: false,
    payload: {
        error: string, // error message
        code: number // error code
    }
}