Hello AI world with Ruby!

Building a small terminal-based chatbot app with OpenAI.

In this tutorial, we'll delve into creating your first AI-powered apps using Ruby, Langchain.rb library and OpenAI's GPTPT-4 API. 

Objective

We'll create a terminal-based chatbot that allows you to OpenAI'S GPT-4. This chatbot will be able to process user inputs and generate relevant, context-aware responses.

1. First, we'll need to create a ruby file. Let's call this chat.rb

2. What we want to do next is import the necessary libraries

• OpenAI: The openai library is a Ruby client for interacting with OpenAI's API.

• Langchain: Langchain is a Ruby library designed for building language applications. 

• reline: Reline is a Ruby library used for readline-compatible input in command-line applications.

3. Create an instance of `Langchain::LLM::OpenAI`. This class is a wrapper around OpenAI's API, specifically tailored for language models (LLMs). 

Side Note: The great thing with Langchain.rb is it supports other models, too, offering flexibility to switch between different AI models based on requirements.

4. Chat Interaction

The method `prompt_for_message`, handles multiline user inputs and implements commands for ending the input or exiting the program. The commands are: "done", "end", "eof", and "exit"

5. Interactive Loop

The code continuously fetches user messages and uses `chat.message` to obtain and display responses from the AI, creating a dynamic conversation flow.

Full code of chatbot.rb

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Hello there!

Do you have a startup idea or an exciting project you’re passionate about? I’d love to bring your vision to life!

I’m a software developer with 13 years of experience in building apps for startups, I specialize in Rails + Hotwire/React.

Whether you’re looking to innovate, grow your business, or bring a creative idea to the forefront, I’m here to provide tailored solutions that meet your unique needs.

Let’s collaborate to make something amazing!

Sincerely,
Ademar Tutor
hey@ademartutor.com