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
Install the XML loader optional dependency group:
uv pip install "upsonic[xml-loader]"
Examples
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 |