Human As A Tool - via web

[srinisubramanian]

A tool may require a few inputs before executing. The Human As A Tool defaults to accepting input from the console. Any examples available to accept the input via a web chat UI? Given there are no callbacks etc, am struggling to figure out how to make the custom input wait for a response from user via a web UI?

[dosubot[bot]]

🤖

Hello,

Thank you for your question. From the context provided, it seems you're interested in using the LangChain framework to accept user input via a web-based user interface.

While LangChain does include a playwright module with tools for interacting with web pages, these tools are primarily used for navigation and data extraction, rather than directly handling user input.

However, it's possible to create a custom tool that waits for user input from a web-based interface. You could use the playwright module's ability to interact with web pages to create a tool that waits for a specific user action, such as a button click or a form submission, and then captures the user's input.

Here's a very basic example of how you might do this:

from playwright.sync_api import sync_playwright

def run(playwright):
    browser = playwright.chromium.launch()
    context = browser.new_context()
    page = context.new_page()
    page.goto("http://your-web-page.com")
    page.wait_for_selector("input#your-input-field")
    user_input = page.eval_on_selector("input#your-input-field", "el => el.value")
    print(user_input)
    browser.close()

with sync_playwright() as playwright:
    run(playwright)

In this example, the script navigates to a web page, waits for an input field to load, and then captures the value of that input field. You could modify this script to wait for a specific user action before capturing the input.

Please note that this is a very basic example and may not cover all your needs. You might need to handle additional complexities, such as multiple input fields, user authentication, or asynchronous user actions.

I hope this helps! If you have any further questions, please don't hesitate to ask.

Best regards,
Dosu

Sources

• libs/langchain/langchain/tools/playwright/init.py
• libs/langchain/langchain/document_loaders/url_playwright.py

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