> For the complete documentation index, see [llms.txt](https://document.sunprotocol.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://document.sunprotocol.io/en/smart-contracts/bond-contract.md).

# Bond Contract

This contract handles Bond purchases, single-token SUN staking, order settlement, management fees, principal claims, and personal reward claims. Use BondInfo for normal order queries because it combines raw fields with live claimable values.

### Find a user's order IDs

| Function                      | Purpose                              |
| ----------------------------- | ------------------------------------ |
| `userBondOrderCount(user)`    | Number of Bond orders                |
| `userBondOrders(user,index)`  | Bond order ID at a zero-based index  |
| `userStakeOrderCount(user)`   | Number of single-stake orders        |
| `userStakeOrders(user,index)` | Stake order ID at a zero-based index |

Bond and stake orders share one globally increasing `orderId`, so IDs are not necessarily contiguous for one user or order kind.

Raw details are exposed by `orderBase(orderId)`, `orderAmounts(orderId)`, and `orderIndexes(orderId)`. `kind=1` is Bond and `kind=2` is single-token staking. `status=1` is normal and `status=2` is collateralized. Only the current `holder` may claim.

### Claim personal rewards

```
claimReward(orderId, amount)
```

`amount` is in SUN's smallest unit. An exact amount makes a partial claim. The maximum `uint256` value means all currently claimable rewards. The call settles the order and credits **Turbine `claimableReward`**; it does not transfer SUN directly to the wallet.

```
115792089237316195423570985008687907853269984665640564039457584007913129639935
```

### Claim principal

```
claimPrincipal(orderId, amount)
```

This transfers linearly released principal directly to the current holder. The amount must not exceed the live `claimablePrincipal`; maximum `uint256` means all principal currently available.

Before writing, call `BondInfo.getOrder(orderId)` and inspect `holder`, `status`, `claimableReward`, and `claimablePrincipal`.

### Other user actions

| Function                                 | Purpose                                                                                             |
| ---------------------------------------- | --------------------------------------------------------------------------------------------------- |
| `buyBond(typeId,usdtAmount)`             | Buy a Bond; requires USDT approval                                                                  |
| `stake(typeId,sunAmount)`                | Create a single-token stake; requires SUN approval and USDT approval for the initial management fee |
| `payManagementFee(orderId,periods)`      | Extend management-fee coverage                                                                      |
| `settleOrder(orderId)`                   | Settle one order without claiming                                                                   |
| `transferOrderHolder(orderId,newHolder)` | Transfer order-holder rights; use with care                                                         |

<figure><img src="https://67272133-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FQwq1LDgDnycI1FCz8mLz%2Fuploads%2F6hY3ZKhh9gXeKT5A9MGV%2Fuserinfo.png?alt=media&amp;token=4f99fc8b-2dfc-49a0-9ac0-cdd8dc041a02" alt=""><figcaption></figcaption></figure>

<figure><img src="https://67272133-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FQwq1LDgDnycI1FCz8mLz%2Fuploads%2FnedwbrX4jkf4CEWwa1Kp%2Fclaim.png?alt=media&amp;token=8521a1de-d2d9-493f-bcaa-e3922885a0bc" alt=""><figcaption></figcaption></figure>


---

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