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https://github.com/chigwell/structquery

A new package that transforms unstructured text queries into highly structured, search-optimized outputs. The package takes a user's text input, such as a search query or a description of information
https://github.com/chigwell/structquery

accuracy-improvement data-structuring e-commerce-applications information-retrieval llmatch-messages precision-search query-refinement relevant-results research-applications search-efficiency search-engine-performance search-optimization standardized-input-format structured-output text-transformation unstructured-text-queries

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A new package that transforms unstructured text queries into highly structured, search-optimized outputs. The package takes a user's text input, such as a search query or a description of information

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# structquery
[![PyPI version](https://badge.fury.io/py/structquery.svg)](https://badge.fury.io/py/structquery)
[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://opensource.org/licenses/MIT)
[![Downloads](https://static.pepy.tech/badge/structquery)](https://pepy.tech/project/structquery)
[![LinkedIn](https://img.shields.io/badge/LinkedIn-blue)](https://www.linkedin.com/in/eugene-evstafev-716669181/)

**structquery** is a lightweight Python package that converts unstructured text queries into highly structured, search‑optimized outputs. By leveraging the `llmatch‑messages` utility and a default LLM7 model, the package extracts key elements from user input (e.g., location, difficulty, length) and returns them in a format that is ready for downstream search engines or information‑retrieval pipelines.

---

## ✨ Features

- **One‑line transformation** from free‑form text to a list of structured fields.
- **Built‑in LLM7 support** (`ChatLLM7` from `langchain_llm7`) with automatic API‑key handling.
- **Pluggable LLMs** – you can swap in any LangChain‑compatible chat model (OpenAI, Anthropic, Google, etc.).
- **Regex‑driven output validation** via `llmatch` to guarantee format correctness.
- **Zero‑config defaults** – works out‑of‑the‑box for common use‑cases.

---

## 📦 Installation

```bash
pip install structquery
```

---

## 🚀 Quick Start

```python
from structquery import structquery

# Simple call – uses the default ChatLLM7 model
response = structquery(
user_input="best hiking trails in Colorado"
)

print(response) # → List of extracted structured strings
```

### Parameters

| Name | Type | Description |
|------------|-----------------------------------|-------------|
| `user_input` | `str` | The raw user query or description you want to structure. |
| `llm` | `Optional[BaseChatModel]` | Your own LangChain chat model. If omitted, the package creates a `ChatLLM7` instance automatically. |
| `api_key` | `Optional[str]` | LLM7 API key. If omitted, the package reads `LLM7_API_KEY` from the environment; otherwise it falls back to the placeholder `"None"` (which triggers an error from the LLM service). |

---

## 🔧 Using a Custom LLM

You can provide any LangChain‑compatible chat model that inherits from `BaseChatModel`. Below are examples for the most popular providers.

### OpenAI

```python
from langchain_openai import ChatOpenAI
from structquery import structquery

llm = ChatOpenAI(model="gpt-4o-mini")
response = structquery(
user_input="latest smartphones under $500",
llm=llm
)
```

### Anthropic

```python
from langchain_anthropic import ChatAnthropic
from structquery import structquery

llm = ChatAnthropic(model_name="claude-3-haiku-20240307")
response = structquery(
user_input="affordable vegan meal plan",
llm=llm
)
```

### Google Generative AI

```python
from langchain_google_genai import ChatGoogleGenerativeAI
from structquery import structquery

llm = ChatGoogleGenerativeAI(model="gemini-1.5-flash")
response = structquery(
user_input="top-rated bike touring routes in Europe",
llm=llm
)
```

---

## 🔑 LLM7 API Key

- The free tier of LLM7 supplies generous rate limits that satisfy most experimentation and production needs.
- To obtain a free API key, register at **[https://token.llm7.io/](https://token.llm7.io/)**.
- You can provide the key in three ways:
1. **Environment variable**: `export LLM7_API_KEY=your_key`
2. **Direct argument**: `structquery(user_input, api_key="your_key")`
3. **Pass a pre‑configured `ChatLLM7` instance** via the `llm` argument.

---

## 🐞 Issues & Contributions

- **Bug reports / feature requests**:
- Contributions are welcome! Fork the repository, make your changes, and submit a pull request.

---

## 📝 License

Distributed under the MIT License. See the `LICENSE` file for details.

---

## 📧 Contact

**Eugene Evstafev** – [hi@euegne.plus](mailto:hi@euegne.plus)
GitHub: