# Chat on Webpage

## Python Implementation

Since we have a Web page default data loader we can use it directly from [here](/v0.1.0/getting-started/default-data-types.md#pdf).

```python
from genai_stack.model import OpenAIGpt35Model

model = OpenAIGpt35Model.from_kwargs(
 fields={"openai_api_key": "Paste your Open AI key"}
)
model.add_source("web", "valid_web_url")
model.predict("<Any question on top of the webpage>")
```

## CLI Implementation

etl.json

```
{
    "etl": "langchain",
    "source": {
        "name": "WebBaseLoader",
        "fields": {
            "web_path": "valid_web_url"
        }
    },
    "vectordb": {
        "name": "chromadb",
        "class_name": "genai_stack"
    }
}
```

Run the ETL command

```
genai-stack etl --config_file etl.json
```

model.json

```
{
    "model": {
        "name": "gpt4all"
    },
    "retriever": {
        "name": "langchain"
    },
    "vectordb": {
        "name": "chromadb",
        "class_name": "genai_stack"
    }
}
```

Run the model server

```
genai-stack start --config_file model.json
```

You can make predictions on this model server:

```python
import requests

url = "http://127.0.0.1:8082/predict"
res = requests.post(url, data={"query": "<Any question on top of the web page>"})
print(res.content)
```


---

# 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://genaistack.aiplanet.com/v0.1.0/example-use-cases/chat-on-webpage.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.