reflect-sdk 1.0.0

Rust SDK for minting and redeeming USDC+ on Reflect
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# reflect-sdk

Rust SDK for minting and redeeming USDC+ on Reflect.

Supports both **off-chain instruction building** (for client-side transaction construction) and **on-chain CPI** (for composing with USDC+ from another Solana program).

## Installation

Add to your `Cargo.toml`:

```toml
[dependencies]
reflect-sdk = "1.0.0"
```

### Feature flags

| Feature | Description |
|---------|-------------|
| `fetch` | Enables RPC account fetch helpers via `solana-client` |
| `serde` | Derives `serde::Serialize` / `serde::Deserialize` on all types |
| `anchor` | Implements Anchor account traits (`AccountSerialize`, `AccountDeserialize`, `Owner`) |
| `anchor-idl-build` | Enables Anchor IDL build support |

## Program ID

```
rFLctqnUuxLmYsW5r9zNujfJx9hGpnP1csXr9PYwVgX
```

Available as `reflect_sdk::REFLECT_MAIN_ID`.

## Minting USDC+

Deposit USDC into the Drift-backed strategy and receive USDC+ receipt tokens.

### Arguments

| Field | Type | Description |
|-------|------|-------------|
| `usdc_amount` | `u64` | Amount of USDC to deposit (native units, 6 decimals) |
| `min_usdc_amount` | `u64` | Minimum receipt tokens to receive (slippage protection) |

### Accounts

| # | Account | Writable | Signer | Description |
|---|---------|----------|--------|-------------|
| 0 | `user` | yes | yes | The depositing user |
| 1 | `main` | yes | | Reflect protocol main state PDA |
| 2 | `usdc_controller` | yes | | Strategy controller PDA |
| 3 | `admin_permissions` | | | Optional user permissions PDA (required when permissioned) |
| 4 | `user_receipt_ata` | yes | | User's ATA for the USDC+ mint |
| 5 | `user_usdc_ata` | yes | | User's ATA for USDC |
| 6 | `controller_usdc_ata` | yes | | Controller's ATA for USDC |
| 7 | `receipt_mint` | yes | | The USDC+ mint |
| 8 | `drift` | | | Drift program ID |
| 9 | `state` | yes | | Drift state account |
| 10 | `user_stats` | yes | | Drift user stats for the controller |
| 11 | `referrer_user_stats` | yes | | Drift referrer user stats |
| 12 | `referrer_user` | yes | | Drift referrer user |
| 13 | `user_account` | yes | | Drift user account for the controller |
| 14 | `spot_market_vault` | yes | | Drift spot market vault (market index 0) |
| 15 | `drift_vault` | yes | | Drift vault signer |
| 16 | `token_program` | | | SPL Token program (defaults to `TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA`) |
| 17 | `system_program` | | | System program |
| 18 | `clock` | | | Clock sysvar |

### Off-chain (builder)

```rust
use reflect_sdk::instructions::MintDriftS1Builder;

let ix = MintDriftS1Builder::new()
    .user(user_pubkey)
    .main(main_pda)
    .usdc_controller(controller_pda)
    .admin_permissions(Some(permissions_pda))
    .user_receipt_ata(user_receipt_ata)
    .user_usdc_ata(user_usdc_ata)
    .controller_usdc_ata(controller_usdc_ata)
    .receipt_mint(usdc_plus_mint)
    .drift(drift_program_id)
    .state(drift_state)
    .user_stats(drift_user_stats)
    .referrer_user_stats(referrer_user_stats)
    .referrer_user(referrer_user)
    .user_account(drift_user_account)
    .spot_market_vault(spot_market_vault)
    .drift_vault(drift_vault)
    .usdc_amount(1_000_000) // 1 USDC
    .min_usdc_amount(990_000) // 1% slippage
    .instruction();
```

### On-chain (CPI)

```rust
use reflect_sdk::instructions::{MintDriftS1CpiBuilder, MintDriftS1InstructionArgs};

MintDriftS1CpiBuilder::new(&reflect_program_info)
    .user(&user_info)
    .main(&main_info)
    .usdc_controller(&controller_info)
    .admin_permissions(Some(&permissions_info))
    .user_receipt_ata(&user_receipt_ata_info)
    .user_usdc_ata(&user_usdc_ata_info)
    .controller_usdc_ata(&controller_usdc_ata_info)
    .receipt_mint(&receipt_mint_info)
    .drift(&drift_info)
    .state(&state_info)
    .user_stats(&user_stats_info)
    .referrer_user_stats(&referrer_user_stats_info)
    .referrer_user(&referrer_user_info)
    .user_account(&user_account_info)
    .spot_market_vault(&spot_market_vault_info)
    .drift_vault(&drift_vault_info)
    .token_program(&token_program_info)
    .system_program(&system_program_info)
    .clock(&clock_info)
    .usdc_amount(1_000_000)
    .min_usdc_amount(990_000)
    .invoke_signed(&[&[b"seed", &[bump]]])?;
```

## Redeeming USDC+

Burn USDC+ receipt tokens and withdraw the underlying USDC back to the user.

### Arguments

| Field | Type | Description |
|-------|------|-------------|
| `rusd_burn_amount` | `u64` | Amount of USDC+ to burn (native units) |
| `min_lst_redeem` | `u64` | Minimum USDC to receive back (slippage protection) |
| `can_chill` | `bool` | If `true`, allows the tx to succeed even when Drift withdrawal is delayed |

### Accounts

Same layout as minting (see table above).

### Off-chain (builder)

```rust
use reflect_sdk::instructions::RedeemDriftS1Builder;

let ix = RedeemDriftS1Builder::new()
    .user(user_pubkey)
    .main(main_pda)
    .usdc_controller(controller_pda)
    .admin_permissions(Some(permissions_pda))
    .user_receipt_ata(user_receipt_ata)
    .user_usdc_ata(user_usdc_ata)
    .controller_usdc_ata(controller_usdc_ata)
    .receipt_mint(usdc_plus_mint)
    .drift(drift_program_id)
    .state(drift_state)
    .user_stats(drift_user_stats)
    .referrer_user_stats(referrer_user_stats)
    .referrer_user(referrer_user)
    .user_account(drift_user_account)
    .spot_market_vault(spot_market_vault)
    .drift_vault(drift_vault)
    .rusd_burn_amount(1_000_000)
    .min_lst_redeem(990_000)
    .can_chill(false)
    .instruction();
```

### On-chain (CPI)

```rust
use reflect_sdk::instructions::RedeemDriftS1CpiBuilder;

RedeemDriftS1CpiBuilder::new(&reflect_program_info)
    .user(&user_info)
    .main(&main_info)
    .usdc_controller(&controller_info)
    .admin_permissions(Some(&permissions_info))
    .user_receipt_ata(&user_receipt_ata_info)
    .user_usdc_ata(&user_usdc_ata_info)
    .controller_usdc_ata(&controller_usdc_ata_info)
    .receipt_mint(&receipt_mint_info)
    .drift(&drift_info)
    .state(&state_info)
    .user_stats(&user_stats_info)
    .referrer_user_stats(&referrer_user_stats_info)
    .referrer_user(&referrer_user_info)
    .user_account(&user_account_info)
    .spot_market_vault(&spot_market_vault_info)
    .drift_vault(&drift_vault_info)
    .token_program(&token_program_info)
    .system_program(&system_program_info)
    .clock(&clock_info)
    .rusd_burn_amount(1_000_000)
    .min_lst_redeem(990_000)
    .can_chill(false)
    .invoke_signed(&[&[b"seed", &[bump]]])?;
```

## Errors

Program errors are available in `errors::ReflectMainError`:

```rust
use reflect_sdk::errors::ReflectMainError;

match error {
    ReflectMainError::CapExceeded => { /* mint cap reached */ }
    ReflectMainError::OutputAmountTooLow => { /* slippage check failed */ }
    ReflectMainError::SplMintFrozen => { /* deposits suspended for this SPL */ }
    ReflectMainError::ActionFrozen => { /* action is suspended */ }
    // ...
}
```