Class: N2M::Llm::Claude

Inherits:
Object
  • Object
show all
Defined in:
lib/n2b/llm/claude.rb

Constant Summary collapse

API_URI = 
URI.parse('https://api.anthropic.com/v1/messages')
MODELS = 
{ 'haiku' =>  'claude-3-haiku-20240307', 'sonnet' => 'claude-3-sonnet-20240229', 'sonnet35' => 'claude-3-5-sonnet-20240620' }

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Claude

Returns a new instance of Claude.



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# File 'lib/n2b/llm/claude.rb', line 7

def initialize(config)
  @config = config
end

Instance Method Details

#make_request(content) ⇒ Object 



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# File 'lib/n2b/llm/claude.rb', line 11

def make_request( content)
  uri = URI.parse('https://api.anthropic.com/v1/messages')
  request = Net::HTTP::Post.new(uri)
  request.content_type = 'application/json'
  request['X-API-Key'] = @config['access_key']
  request['anthropic-version'] = '2023-06-01'

  request.body = JSON.dump({
    "model" => MODELS[@config['model']],
    "max_tokens" => 1024,
    "messages" => [
      {
        "role" => "user",
        "content" => content 
      }
    ]
  })

  response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
    http.request(request)
  end
  # check for errors
  if response.code != '200'
    puts "Error: #{response.code} #{response.message}"
    puts response.body
    exit 1
  end
  answer = JSON.parse(response.body)['content'].first['text'] 
  begin 
    File.open('llm_response.json', 'w') do |f|
      f.write(answer)
    end
    # remove everything before the first { and after the last }
    
    answer = answer.sub(/.*?\{(.*)\}.*/m, '{\1}') unless answer.start_with?('{')
    # gsub all \n with \\n that are inside "
    # 
    answer.gsub!(/"([^"]*)"/) { |match| match.gsub(/\n/, "\\n") }
    File.open('llm_response.json', 'w') do |f|
      f.write(answer)
    end
    answer = JSON.parse(answer)
  rescue JSON::ParserError
    puts "Error parsing JSON: #{answer}"
    answer = { 'explanation' => answer}
  end
  answer
end