Wallet Package

The Wallet package contains all the things needed to create a wallet from a mnemonic phrase and use it to sign a tx.

Wallet

```rust /// Keychain contains a pair of Secp256k1 keys. pub struct Keychain { pub extpublickey: ExtendedPubKey, pub extprivatekey: ExtendedPrivKey, }

/// Wallet is a facility used to manipulate private and public keys associated /// to a BIP-32 mnemonic. pub struct Wallet { pub keychain: Keychain, pub bech32_address: String, } ```

Import wallet from mnemonic

rust fn import_wallet_from_mnemonic_example() { let wallet = Wallet::from_mnemonic( "battle call once stool three mammal hybrid list sign field athlete amateur cinnamon eagle shell erupt voyage hero assist maple matrix maximum able barrel", "m/44'/852'/0'/0/0".to_string(), "desmos".to_string(), ).unwrap(); }

Sign tx

````rust fn signtxexample() { let wallet = Wallet::from_mnemonic(...).unwrap();

let lcd_endpoint = "http://localhost:1317";
let node_info = get_node_info(lcd_endpoint.to_string())
    .await
    .unwrap()
    .node_info;
let grpc_endpoint = "http://localhost:9090";
let chain_client = ChainClient::new(
    node_info,
    lcd_endpoint.to_string(),
    grpc_endpoint.to_string(),
);

let account = chain_client
    .get_account_data(wallet.bech32_address.clone())
    .await
    .unwrap();

// Gas Fee
let coin = Coin {
    denom: "stake".to_string(),
    amount: "5000".to_string(),
};

let fee = Fee {
    amount: vec![coin],
    gas_limit: 300000,
    payer: "".to_string(),
    granter: "".to_string(),
};

let amount = Coin {
    denom: "stake".to_string(),
    amount: "100000".to_string(),
};
let msg = MsgSend {
    from_address: wallet.bech32_address.clone(),
    to_address: "desmos16kjmymxuxjns7usuke2604arqm9222gjgp9d56".to_string(),
    amount: vec![amount],
};

let mut msg_bytes = Vec::new();
prost::Message::encode(&msg, &mut msg_bytes).unwrap();

let proto_msg = Msg(Any {
    type_url: "/cosmos.bank.v1beta1.Msg/Send".to_string(),
    value: msg_bytes,
});

let msgs = vec![proto_msg];

let tx_signed_bytes = wallet
    .sign_tx(account, chain_client.node_info.network, msgs, fee, None, 0)
    .unwrap();

} ````