> ## Documentation Index
> Fetch the complete documentation index at: https://docs.upsonic.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# XML Loader

> Load XML files with XPath-based splitting and content extraction

## Overview

XML loader processes XML files using XPath expressions to split documents and extract content. Supports namespace handling, attribute extraction, and flexible content synthesis modes.

**Loader Class:** `XMLLoader`

**Config Class:** `XMLLoaderConfig`

## Install

<Note>
  Install the XML loader optional dependency group:

  ```bash theme={null}
  uv pip install "upsonic[xml-loader]"
  ```
</Note>

## Examples

```python theme={null}
from upsonic import Agent, Task, KnowledgeBase
from upsonic.loaders.xml import XMLLoader
from upsonic.loaders.config import XMLLoaderConfig
from upsonic.embeddings import OpenAIEmbedding, OpenAIEmbeddingConfig
from upsonic.text_splitter.recursive import RecursiveChunker, RecursiveChunkingConfig
from upsonic.vectordb import ChromaProvider, ChromaConfig, ConnectionConfig, Mode

# Configure loader
loader_config = XMLLoaderConfig(
    split_by_xpath="//item",
    content_xpath="./description",
    metadata_xpaths={"title": "./title", "author": "./author"}
)
loader = XMLLoader(loader_config)

# Setup KnowledgeBase
embedding = OpenAIEmbedding(OpenAIEmbeddingConfig())
chunker = RecursiveChunker(RecursiveChunkingConfig())
vectordb = ChromaProvider(ChromaConfig(
    collection_name="xml_data",
    vector_size=1536,
    connection=ConnectionConfig(mode=Mode.IN_MEMORY)
))

kb = KnowledgeBase(
    sources=["data.xml"],
    embedding_provider=embedding,
    vectordb=vectordb,
    loaders=[loader],
    splitters=[chunker]
)

# Query with Agent
agent = Agent("anthropic/claude-sonnet-4-5")
task = Task("Find items matching 'technology'", context=[kb])
result = agent.do(task)
print(result)
```

## Parameters

| Parameter | Type | Description | Default | Source |
| - | - | - | - | - |
| `encoding` | `str \| None` | File encoding (auto-detected if None) | None | Base |
| `error_handling` | `"ignore" \| "warn" \| "raise"` | How to handle loading errors | "warn" | Base |
| `include_metadata` | `bool` | Whether to include file metadata | True | Base |
| `custom_metadata` | `dict` | Additional metadata to include | {} | Base |
| `max_file_size` | `int \| None` | Maximum file size in bytes | None | Base |
| `skip_empty_content` | `bool` | Skip documents with empty content | True | Base |
| `split_by_xpath` | `str` | XPath expression to identify document elements | `"//*[not(*)] \| //item \| //product \| //book"` | Specific |
| `content_xpath` | `str \| None` | Relative XPath to select content | None | Specific |
| `content_synthesis_mode` | `"smart_text" \| "xml_snippet"` | Content format | "smart\_text" | Specific |
| `include_attributes` | `bool` | Include element attributes in metadata | True | Specific |
| `metadata_xpaths` | `dict[str, str] \| None` | Map metadata keys to XPath expressions | None | Specific |
| `strip_namespaces` | `bool` | Remove XML namespaces | True | Specific |
| `recover_mode` | `bool` | Parse malformed XML | False | Specific |


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