# Self-Submit On-Chain

For partners who manage their own private keys or custodial wallets.

## Workflow

```mermaid
sequenceDiagram
    participant Client
    participant API
    participant Chain
    participant Indexer

    Client->>API: POST /orders/calldata
    API-->>Client: calldata + toAddress
    Client->>Chain: Submit transaction
    Chain-->>Client: txHash
    Client->>API: POST /orders/tx { txHash }
    API-->>Client: Mapping record
    Indexer->>API: Parse on-chain events, backfill orderId
    Client->>API: GET /orders/{orderId}
    API-->>Client: Order status
```

## Steps

1. Call `/api/v1/orders/calldata`, `/api/v1/cash/deposits/calldata`, or `/api/v1/cash/withdrawals/calldata` to get `toAddress`, `value`, and `callData`.
2. Submit the transaction on-chain using your own wallet system.
3. After obtaining the `txHash`, call the corresponding `/tx` endpoint to record it.
4. The indexer parses on-chain events and backfills `orderId` or `operationId` by `txHash`.
5. Use query endpoints to track status.

## Transaction Recording Endpoints

| Operation   | Endpoint                           |
| ----------- | ---------------------------------- |
| Place Order | `POST /api/v1/orders/tx`           |
| Deposit     | `POST /api/v1/cash/deposits/tx`    |
| Withdraw    | `POST /api/v1/cash/withdrawals/tx` |

## Status Query Endpoints

| Operation   | Endpoint                                                         |
| ----------- | ---------------------------------------------------------------- |
| Place Order | `GET /api/v1/orders/tx/{txHash}`, `GET /api/v1/orders/{orderId}` |
| Deposit     | `GET /api/v1/cash/deposits/{operationId}`                        |
| Withdraw    | `GET /api/v1/cash/withdrawals/{operationId}`                     |

{% hint style="warning" %}
Submitting the same `txHash` from the same API Key returns the existing mapping. If the `txHash` was already recorded by another API Key, the endpoint returns an error.
{% endhint %}


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