> For the complete documentation index, see [llms.txt](https://ffp.gitbook.io/fusionfi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ffp.gitbook.io/fusionfi/development/use-case/orderbook-agent.md).

# OrderBook Agent

OrderBook Agent runs user-set buy and sell orders and supports order matching. This use case includes the following operations:

1. Create an OrderBook Agent.
2. Deposit tokens into the Agent, and the user creates a limit order.
3. Place a limit order and obtain the NoteID of the order.
4. Use the Agent from the Basic use case to take the order and complete the order matching and transaction.

### Create

Execute the following command to create two OrderBook Agents:

```bash
node ./orderbook/create.js
```

Example output:

```bash
wBn7-31aDtChhLfUk_eXNG9Nbafa_ghT29XRxk7osiM create orderbook agent: <YourOrderBookAgent1>  
ORHaLUrAiknTAq2Wszoyl6buJrd3MqDKLTF_2CggLtw create orderbook agent: <YourOrderBookAgent2>
```

Configure ORDERBOOKAGENT1 and ORDERBOOKAGENT2 in the .env.local file and load:

```bash
export $(cat .env.local | xargs)
```

### Deposit Token into Agent

```bash
node ./orderbook/deposit.js --walletN=2 --agentId=$ORDERBOOKAGENT2
```

Check balance:

```bash
node ./balance.js --address=$ORDERBOOKAGENT2
```

### Create a limit order

Use the following command to create a limit order:

```bash
node ./orderbook/make.js --walletN=2 --agentId=$ORDERBOOKAGENT2
```

Example output:

```bash
openOrders {  
  MVBggDjYkl3UxoHRZ2rO6ZLDcN4ax4Af6rehyYJ3CH0: {  
    ID: 2600,  
    AssetID: 'AttsQGi4xgSOTeHM6CNgEVxlrdZi4Y86LQCF__p4HUM',  
    HolderAssetID: '0fLIp-xxRnQ8Nk-ruq8SBY8icaIvZMujnqCGU79fnM0',  
    NoteID: 'MVBggDjYkl3UxoHRZ2rO6ZLDcN4ax4Af6rehyYJ3CH0',  
    IssueDate: 1733297306962,  
    HolderAmount: '3',  
    Amount: '1',  
    Status: 'Open',  
    Price: 3,  
    Issuer: 'RPFQd69SX2tbrtNBfVxzVSt9zQYk07WrHOCDhxDHu0o'  
  }  
}
```

Query the order:

```bash
node ./orderbook/query.js --agentId=$ORDERBOOKAGENT2
```

Set the NoteID as an environment variable:

```bash
export NOTEID=<NoteID>
```

### &#x20;Take order

Use Basic Agent1 to take the order:

```bash
node ./basic/take.js --walletN=1 --agentId=$AGENT1 --noteId=$NOTEID
```

After the transaction is completed, check the balance of both Agents:

```bash
node ./balance.js --address=$AGENT1
node ./balance.js --address=$ORDERBOOKAGENT2
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://ffp.gitbook.io/fusionfi/development/use-case/orderbook-agent.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.