Class: LlamaBotRails::LlamaBot

Inherits:
Object
  • Object
show all
Defined in:
lib/llama_bot_rails/llama_bot.rb

Overview

This class is responsible for initiating HTTP requests to the FastAPI backend that takes us to LangGraph.

Class Method Summary collapse

Class Method Details

.get_chat_history(thread_id) ⇒ Object 



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# File 'lib/llama_bot_rails/llama_bot.rb', line 17

def self.get_chat_history(thread_id)
  uri = URI("#{Rails.application.config.llama_bot_rails.llamabot_api_url}/chat-history/#{thread_id}")
  response = Net::HTTP.get_response(uri)
  JSON.parse(response.body)
rescue => e
  Rails.logger.error "Error fetching chat history: #{e.message}"
  []
end

.get_threads ⇒ Object 



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# File 'lib/llama_bot_rails/llama_bot.rb', line 8

def self.get_threads
  uri = URI("#{Rails.application.config.llama_bot_rails.llamabot_api_url}/threads")
  response = Net::HTTP.get_response(uri)
  JSON.parse(response.body)
rescue => e
  Rails.logger.error "Error fetching threads: #{e.message}"
  []
end

.send_agent_message(agent_params) ⇒ Object 



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# File 'lib/llama_bot_rails/llama_bot.rb', line 26

def self.send_agent_message(agent_params)
  return enum_for(__method__, agent_params) unless block_given?

  uri = URI("#{Rails.application.config.llama_bot_rails.llamabot_api_url}/llamabot-chat-message")
  http = Net::HTTP.new(uri.host, uri.port)
  
  request = Net::HTTP::Post.new(uri)
  
  http.use_ssl = (uri.scheme == "https")

  request['Content-Type'] = 'application/json'
  request.body = agent_params.to_json

  # Stream the response instead of buffering it
  http.request(request) do |response|
    if response.code.to_i == 200
      buffer = ''
      
      response.read_body do |chunk|
        buffer += chunk
        
        # Process complete lines (ended with \n)
        while buffer.include?("\n")
          line, buffer = buffer.split("\n", 2)
          if line.strip.present?
            begin
              yield JSON.parse(line)
            rescue JSON::ParserError => e
              Rails.logger.error "Parse error: #{e.message}"
            end
          end
        end
      end
      
      # Process any remaining data in buffer
      if buffer.strip.present?
        begin
          yield JSON.parse(buffer)
        rescue JSON::ParserError => e
          Rails.logger.error "Final buffer parse error: #{e.message}"
        end
      end
    end
  end
rescue => e
  Rails.logger.error "Error sending agent message: #{e.message}"
  { error: e.message }
end