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evmGetPublicKey

Ethereum: get public key

Returns the public key derived from the specified path. Use showOnOneKey to request confirmation on the device.


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

Params

Optional common params

Single public key

path - required string | Array<number> SDK minimum length is 3. read more
showOnOneKey - optional boolean Whether to display the public key on the device. Defaults to true.
chainId - optional number The ChainId in ETH is a unique identifier for a specific Ethereum network, used to distinguish different versions of the blockchain. Reference .

Multiple public keys

bundle - array of objects with path, chainId, showOnOneKey fields

Example

Return the public key for first ethereum account:


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

Return a bundle of public keys for multiple ethereum accounts:


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

Result

Single-public-key response


{
    success: true,
    payload: {
        path: string, // serialized BIP32 path
        xpub?: string,        // xpub in legacy format
        pub: string, // hexadecimal public key
        publicKey: string, // alias of pub
    }
}

Batch public-key response


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

Error


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

For bundle requests with useBatch: true, a supported batch route returns { path, pub, publicKey } without xpub or node. The ordinary route returns the extended public key and node; do not require these fields in a batch response.