# How to monitor opening and closing orders?

## Description

By scanning all the blocks, we can get the logs of each transaction, parse the topics, and determine the corresponding contract address, find the corresponding transaction parameters, and then perform the next data processing operation according to the business requirements.

## Events Emitted in Transactions

### Deposit Funds

|      **Title**      |                                         Content                                         |
| :-----------------: | :-------------------------------------------------------------------------------------: |
|  **Event Emitted**  | event DDSDeposit(address indexed sender, address indexed toAddr, uint256 motageAmount); |
| **Event Signature** |            0x8741a00229f2b8b24379b60f7a4ba3a3f3d92f328280c47a38cd03504ac72c42           |

### Withdraw Funds

|      **Title**      |                                          Content                                         |
| :-----------------: | :--------------------------------------------------------------------------------------: |
|  **Event Emitted**  | event DDSWithdraw(address indexed sender, address indexed toAddr, uint256 motageAmount); |
| **Event Signature** |            0x9319767067544c146c859088bc69f38236cad434eb28957e8574a56d4173f89f            |

### Deposit DAI into Public Pool

|      **Title**      |                                    Content                                   |
| :-----------------: | :--------------------------------------------------------------------------: |
|  **Event Emitted**  | event Provide(address indexed account, uint256 amount, uint256 writeAmount); |
| **Event Signature** |      0x4089141ea5e4c16575f5ebf65f1786497ea07c175846fc7745ef8d8986a4ff65      |

### Deposit DAI into Private Pool

|      **Title**      |                               Content                              |
| :-----------------: | :----------------------------------------------------------------: |
|  **Event Emitted**  |     event ProvideLP2(address indexed account, uint256 amount);     |
| **Event Signature** | 0x26a27ab2f158d9fe04dea4c221634a0d50bdbb2a9fcdcc1960567eefa9c2ed0a |

### Withdraw DAI from Public/Private Pool

|      **Title**      |                               Content                              |
| :-----------------: | :----------------------------------------------------------------: |
|  **Event Emitted**  |      event Withdraw(address indexed account, uint256 amount);      |
| **Event Signature** | 0x884edad9ce6fa2440d8a54cc123490eb96d2768479d49ff9c7366125a9424364 |