# XPath

### Overview

The **XPath XML Extractor Component** extracts data from XML content using a specified XPath expression. This allows precise retrieval of elements, attributes, or values from structured XML data.

### Usage

This component takes an XML string as input and applies an XPath query to extract specific information.

#### Input Ports

| Port | Description                                                   |
| ---- | ------------------------------------------------------------- |
| `in` | Accepts an XML string and an XPath expression for processing. |

**Input Properties**

| Property | Type     | Description                                                 |
| -------- | -------- | ----------------------------------------------------------- |
| `xml`    | `string` | XML content to process.                                     |
| `xpath`  | `string` | XPath expression for selecting elements. E.g., `'//title'`. |

#### Output Ports

| Port  | Description                                                         |
| ----- | ------------------------------------------------------------------- |
| `out` | Provides the extracted data from XML based on the XPath expression. |

**Output Properties**

| Property | Type     | Description                                         |
| -------- | -------- | --------------------------------------------------- |
| `result` | `string` | Extracted data based on the given XPath expression. |

#### Processing Logic

1. **Parse XML Input**: Converts the input XML string into a DOM object.
2. **Apply XPath Expression**: Executes the XPath query on the parsed XML.
3. **Format Extracted Data**: If multiple matches are found, results are concatenated into a single string.
4. **Send Output**: The extracted data is emitted through the `out` port.

### Notes

* **Flexible Queries**: Supports selecting elements, attributes, and text nodes via XPath.
* **Handles Multiple Matches**: When multiple elements match the XPath, results are concatenated.
* **Efficient XML Parsing**: Uses `xmldom` and `xpath` libraries for reliable parsing and selection.

This component provides a powerful way to extract and manipulate XML data using XPath expressions, making it highly useful for XML-based workflows.


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# Agent Instructions: 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://docs.appmixer.com/connector-configuration/utils/xml/xpath.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.