> For the complete documentation index, see [llms.txt](https://cetus-1.gitbook.io/cetus-developer-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cetus-1.gitbook.io/cetus-developer-docs/developer/via-sdk-v2/sdk-modules/cetusprotocol-zap-sdk/deposit.md).

# Deposit

**Deposit Mode-Specific Parameters**

1. **FixedOneSide**
   * `fixed_amount`: Fixed amount to deposit
   * `fixed_coin_a`: Boolean indicating whether to fix coin A (true) or coin B (false)
2. **FlexibleBoth**
   * `coin_amount_a`: Amount of coin A to deposit
   * `coin_amount_b`: Amount of coin B to deposit
3. **OnlyCoinA/OnlyCoinB**
   * `coin_amount`: Amount of single coin to deposit

**Deposit Usage Example**

```typescript
// Initialize SDK and get pool information
const sdk = CetusZapSDK.createSDK({ env: 'mainnet' })

const pool_id = 'YOUR_POOL_ID'
const pool = await sdk.CetusClmmSDK.Pool.getPool(pool_id)

// Pre-calculate deposit amounts (example: FixedOneSide mode)
const result = await sdk.Zap.preCalculateDepositAmount(
  {
    pool_id,
    tick_lower,
    tick_upper,
    current_sqrt_price: pool.current_sqrt_price.toString(),
    slippage: 0.01,
  },
  {
    mode: 'FixedOneSide',
    fixed_amount: toDecimalsAmount(1, 6).toString(),
    fixed_coin_a: false,
  }
)

const pos_id = 'YOUR_POSITION_ID'
// Build and send transaction
const tx = await sdk.Zap.buildDepositPayload({
  deposit_obj: result,
  pool_id,
  coin_type_a: pool.coin_type_a,
  coin_type_b: pool.coin_type_b,
  tick_lower,
  tick_upper,
  slippage: 0.01,
  pos_obj: {
    // Optional: Add to existing position
    pos_id,
    collect_fee: false,
    collect_rewarder_types: [],
  },
})

// Simulate or send the transaction
const sim_result = await sdk.FullClient.sendSimulationTransaction(tx, wallet)
```