Struct DydxCredential 

pub struct DydxCredential {
    pub address: String,
    pub authenticator_ids: Vec<u64>,
    /* private fields */
}

dYdX wallet credentials for signing blockchain transactions.

Uses secp256k1 for signing as per Cosmos SDK specifications.

Security

The underlying SigningKey from cosmrs (backed by k256) securely zeroizes private key material from memory on drop.

Fields

address: String

Bech32-encoded account address (e.g., dydx1…).

authenticator_ids: Vec<u64>

Optional authenticator IDs for permissioned key trading.

Implementations

impl DydxCredential

pub fn from_private_key( private_key_hex: &str, authenticator_ids: Vec<u64>, ) -> Result<Self>

Creates a new DydxCredential from a raw private key.

Errors

Returns an error if private key is invalid.

pub fn from_env( is_testnet: bool, authenticator_ids: Vec<u64>, ) -> Result<Option<Self>>

Creates a DydxCredential from environment variables.

Checks for private key: DYDX_PRIVATE_KEY / DYDX_TESTNET_PRIVATE_KEY

Returns None if no environment variable is set.

Errors

Returns an error if a credential is set but invalid.

pub fn resolve( private_key: Option<String>, is_testnet: bool, authenticator_ids: Vec<u64>, ) -> Result<Option<Self>>

Resolves a DydxCredential from config values or environment variables.

Priority:

1. private_key config value
2. DYDX_PRIVATE_KEY / DYDX_TESTNET_PRIVATE_KEY env var

Returns None if no credential is available.

Errors

Returns an error if a credential is provided but invalid.

pub fn account_id(&self) -> Result<AccountId>

Returns the account ID for this credential.

Errors

Returns an error if the address cannot be parsed as a valid account ID.

pub fn sign(&self, sign_doc: &SignDoc) -> Result<Vec<u8>>

Signs a transaction SignDoc.

This produces the signature bytes that will be included in the transaction.

Errors

Returns an error if SignDoc serialization or signing fails.

pub fn sign_bytes(&self, message: &[u8]) -> Result<Vec<u8>>

Signs raw message bytes.

Used for custom signing operations outside of standard transaction flow.

Errors

Returns an error if signing fails.

pub fn public_key(&self) -> PublicKey

Returns the public key for this credential.

Trait Implementations

impl Debug for DydxCredential

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.