Struct InMemorySigner 

pub struct InMemorySigner { /* private fields */ }

A signer with a single key stored in memory.

This is the simplest signer implementation, suitable for scripts, bots, and testing.

Example

use near_kit::InMemorySigner;

let signer = InMemorySigner::new(
    "alice.testnet",
    "ed25519:3D4YudUahN1nawWogh8pAKSj92sUNMdbZGjn7kERKzYoTy8tnFQuwoGUC51DowKqorvkr2pytJSnwuSbsNVfqygr"
).unwrap();

Implementations

impl InMemorySigner

pub fn new( account_id: impl AsRef<str>, secret_key: impl AsRef<str>, ) -> Result<Self, Error>

Create a new signer with an account ID and secret key.

Arguments

• account_id - The NEAR account ID (e.g., “alice.testnet”)
• secret_key - The secret key in string format (e.g., “ed25519:…”)

Errors

Returns an error if the account ID or secret key cannot be parsed.

pub fn from_secret_key(account_id: AccountId, secret_key: SecretKey) -> Self

Create a signer from a SecretKey directly.

pub fn from_seed_phrase( account_id: impl AsRef<str>, phrase: impl AsRef<str>, ) -> Result<Self, Error>

Create a signer from a BIP-39 seed phrase.

Uses SLIP-10 derivation with the default NEAR HD path (m/44'/397'/0').

Arguments

• account_id - The NEAR account ID (e.g., “alice.testnet”)
• phrase - BIP-39 mnemonic phrase (12, 15, 18, 21, or 24 words)

Example

use near_kit::InMemorySigner;

let signer = InMemorySigner::from_seed_phrase(
    "alice.testnet",
    "abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about"
).unwrap();

pub fn from_seed_phrase_with_path( account_id: impl AsRef<str>, phrase: impl AsRef<str>, hd_path: impl AsRef<str>, ) -> Result<Self, Error>

Create a signer from a BIP-39 seed phrase with custom HD path.

Arguments

• account_id - The NEAR account ID
• phrase - BIP-39 mnemonic phrase
• hd_path - BIP-32 derivation path (e.g., "m/44'/397'/0'")

Example

use near_kit::InMemorySigner;

let signer = InMemorySigner::from_seed_phrase_with_path(
    "alice.testnet",
    "abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about",
    "m/44'/397'/1'"
).unwrap();

pub fn public_key(&self) -> &PublicKey

Get the public key.

Trait Implementations

impl Clone for InMemorySigner

fn clone(&self) -> InMemorySigner

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for InMemorySigner

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

Formats the value using the given formatter.

impl Signer for InMemorySigner

fn account_id(&self) -> &AccountId

The account this signer signs for.

fn key(&self) -> SigningKey

Get a key for signing.