# Retrieving Transaction Lines

### Data Retrieval Methods

#### Get Single Transaction Line by Unique Key

* **Description:** Retrieves a single Transaction Line using the get function, with Line UUID as the only supported key.
* **Syntax:**

  ```javascript
  pepperi.api.transactionLines.get({
    key: { UUID: "<UUID>" },
    fields: [<string array of relevant field names>]
  });
  ```
* **Example:**

  ```javascript
  pepperi.api.transactionLines.get({
    key: { UUID: "aefb523e-74ac-4041-8bb1-a76a3b5e78d8" },
    fields: ["UnitsQuantity", "Item.ExternalID"]
  });
  ```
* **Returns:**

  ```json
  {
    "success": true,
    "object": {
      "UUID": "aefb523e-74ac-4041-8bb1-a76a3b5e78d8",
      "UnitsQuantity": 34,
      "Item.ExternalID": "ABCD123"
    }
  }
  ```

#### Search List of Transaction Lines by Filter

* **Description:** Retrieves multiple Transaction Lines using the search function with a filter, sorting, page size, and page number.
* **Syntax:**

  ```javascript
  pepperi.api.transactionLines.search({
    fields: [<string array of relevant field names>],
    filter: { <filter object> },
    sorting: [{ Field: "<fieldName>", Ascending: <boolean> }],
    pageSize: <number>,
    page: <number>
  });
  ```
* **Example:**

  ```javascript
  pepperi.api.transactionLines.search({
    fields: ["Transaction.UUID", "ExternalID", "MyTSA"],
    filter: {
      "Operation": "AND",
      "LeftNode": { "ApiName": "APIName1", "Operation": ">", "Values": ["7"] },
      "RightNode": { "ApiName": "ApiName2", "Operation": "InTheLast", "Values": ["4", "Weeks"] }
    },
    sorting: [{ "Field": "MyTSA", "Ascending": true }, { "Field": "MyTSA2", "Ascending": true }],
    pageSize: 1000,
    page: 1
  });
  ```
* **Returns:**

  ```json
  {
    "success": true,
    "objects": [
      {
        "UUID": "aefb523e-74ac-4041-8bb1-a76a3b5e78d8",
        "ExternalID": "abc123",
        "MyTSA": 12.8
      },
      {
        "UUID": "aefb5346-74ac-4041-8bb1-a76a3b5e734h",
        "ExternalID": "abc456",
        "MyTSA": 34.5
      }
    ]
  }
  ```

#### Search List of Transaction Lines by Transaction Filter and Transaction Lines Filter

* **Description:** Retrieves Transaction Lines from transactions not yet loaded into memory using the search function with separate transactionFilter and filter parameters.
* **Purpose:** Enables fetching lines from unloaded transactions efficiently.
* **Syntax:**

  ```javascript
  pepperi.api.transactionLines.search({
    fields: [<string array of relevant field names>],
    transactionFilter: { <filter object> },
    filter: { <filter object> },
    sort: [{ Field: "<fieldName>", Ascending: <boolean> }],
    pageSize: <number>,
    page: <number>
  });
  ```
* **Example:**

  ```javascript
  pepperi.api.transactionLines.search({
    fields: ["UUID", "ExternalID", "MyTSA"],
    transactionFilter: {
      "Operation": "AND",
      "LeftNode": { "ApiName": "APIName1", "Operation": ">", "Values": ["7"] },
      "RightNode": { "ApiName": "ApiName2", "Operation": "InTheLast", "Values": ["4", "Weeks"] }
    },
    filter: {
      "Operation": "AND",
      "LeftNode": { "ApiName": "APIName1", "Operation": ">", "Values": ["7"] },
      "RightNode": { "ApiName": "ApiName2", "Operation": "InTheLast", "Values": ["4", "Weeks"] }
    },
    sort: [{ "Field": "MyTSA", "Ascending": true }, { "Field": "MyTSA2", "Ascending": true }],
    pageSize: 1000,
    page: 1
  });
  ```
* **Returns:**

  ```json
  {
    "success": true,
    "objects": [
      {
        "UUID": "aefb523e-74ac-4041-8bb1-a76a3b5e78d8",
        "ExternalID": "abc123",
        "MyTSA": 12.8
      },
      {
        "UUID": "aefb5346-74ac-4041-8bb1-a76a3b5e734h",
        "ExternalID": "abc456",
        "MyTSA": 34.5
      }
    ]
  }
  ```


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