> ## Documentation Index
> Fetch the complete documentation index at: https://kamino.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Earn Deposit with the SDK

> Deposit to vaults using TypeScript SDK

## Deposit to Earn Vault

Deposit assets to start earning yield.

<Steps>
  <Step>
    ### Import Dependencies

    Import the required packages for Solana RPC communication, Kamino SDK operations, and Kit transaction building.

    ```typescript theme={null}
    import {
      createSolanaRpc,
      createSolanaRpcSubscriptions,
      address,
      pipe,
      createTransactionMessage,
      setTransactionMessageFeePayerSigner,
      setTransactionMessageLifetimeUsingBlockhash,
      appendTransactionMessageInstructions,
      signTransactionMessageWithSigners,
      sendAndConfirmTransactionFactory,
      getSignatureFromTransaction,
    } from '@solana/kit';
    import { KaminoVault } from '@kamino-finance/klend-sdk';
    import { parseKeypairFile } from '@kamino-finance/klend-sdk/dist/utils/signer.js';
    import { Decimal } from 'decimal.js';
    ```
  </Step>

  <Step>
    ### Load Signer and Initialize Vault

    Load your keypair from a file and initialize RPC connections and the vault instance.

    ```typescript theme={null}
    const KEYPAIR_FILE = '/path/to/your/keypair.json';
    const signer = await parseKeypairFile(KEYPAIR_FILE);

    const rpc = createSolanaRpc('https://api.mainnet-beta.solana.com');
    const rpcSubscriptions = createSolanaRpcSubscriptions('wss://api.mainnet-beta.solana.com');
    const vault = new KaminoVault(
      rpc,
      address('HDsayqAsDWy3QvANGqh2yNraqcD8Fnjgh73Mhb3WRS5E')
    );
    ```

    <Note>
      Replace `/path/to/your/keypair.json` with the actual path to your keypair file. The `rpcSubscriptions` enables real-time transaction confirmation.
    </Note>
  </Step>

  <Step>
    ### Build Deposit Instructions

    Generate deposit instructions for the vault.

    ```typescript theme={null}
    const depositAmount = new Decimal(1.0);
    const bundle = await vault.depositIxs(signer, depositAmount);
    const instructions = [...(bundle.depositIxs || [])];

    if (!instructions.length) {
      throw new Error('No instructions returned by Kamino SDK');
    }
    ```

    <Info>
      The `depositIxs` method returns deposit instructions to add your assets to the vault and mint vault shares.
    </Info>
  </Step>

  <Step>
    ### Build and Sign Transaction

    Use Kit's functional pipe pattern to build and sign the transaction with a fresh blockhash.

    ```typescript theme={null}
    const { value: latestBlockhash } = await rpc.getLatestBlockhash().send();

    const transactionMessage = pipe(
      createTransactionMessage({ version: 0 }),
      (tx) => setTransactionMessageFeePayerSigner(signer, tx),
      (tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx),
      (tx) => appendTransactionMessageInstructions(instructions, tx)
    );

    const signedTransaction = await signTransactionMessageWithSigners(transactionMessage);
    ```
  </Step>

  <Step>
    ### Send and Confirm Transaction

    Send the deposit transaction and wait for confirmation.

    ```typescript theme={null}
    const signature = getSignatureFromTransaction(signedTransaction);

    await sendAndConfirmTransactionFactory({ rpc, rpcSubscriptions })(signedTransaction, {
      commitment: 'confirmed',
      skipPreflight: true,
    });

    console.log('Deposit successful! Signature:', signature);
    ```

    <Check>
      Once the deposit transaction is confirmed, your assets are deposited into the vault and you start earning yield. Vault shares are minted to represent your position.
    </Check>
  </Step>
</Steps>