Class: OpenAI

Inherits:
LastLLM::Provider show all
Defined in:
lib/last_llm/providers/openai.rb

Overview

OpenAI provider implementation

Constant Summary collapse

BASE_ENDPOINT = 
'https://api.openai.com'

Instance Attribute Summary

Attributes inherited from LastLLM::Provider

#config, #name

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ OpenAI

Returns a new instance of OpenAI.



9
10
11
12
 
# File 'lib/last_llm/providers/openai.rb', line 9

def initialize(config)
  super(Constants::OPENAI, config)
  @conn = connection(config[:base_url] || BASE_ENDPOINT)
end

Instance Method Details

#embeddings(text, options = {}) ⇒ Array<Float>

Generate embeddings from text

Parameters:

  • text (String) —

    The text to generate embeddings for

  • options (Hash) (defaults to: {}) —

    Options for the embedding generation

Returns:

  • (Array<Float>) —

    The embedding vector as an array of floats



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
 
# File 'lib/last_llm/providers/openai.rb', line 34

def embeddings(text, options = {})
  # Ensure text is a string
  text_str = text.to_s

  response = @conn.post('/v1/embeddings') do |req|
    req.body = {
      model: options[:model] || 'text-embedding-ada-002',
      input: text_str,
      encoding_format: options[:encoding_format] || 'float'
    }.compact
  end

  result = parse_response(response)

  # Extract embeddings from response
  embeddings = result.dig(:data, 0, :embedding)

  raise LastLLM::ApiError.new('Invalid embeddings response format', nil) unless embeddings.is_a?(Array)

  embeddings
rescue Faraday::Error => e
  handle_request_error(e)
end

#generate_object(prompt, schema, options = {}) ⇒ Object 



22
23
24
25
26
27
28
 
# File 'lib/last_llm/providers/openai.rb', line 22

def generate_object(prompt, schema, options = {})
  request_body = build_json_request(prompt, schema, options)
  response = make_completion_request(request_body)
  parse_json_response(response)
rescue Faraday::Error => e
  handle_request_error(e)
end

#generate_text(prompt, options = {}) ⇒ Object 



14
15
16
17
18
19
20
 
# File 'lib/last_llm/providers/openai.rb', line 14

def generate_text(prompt, options = {})
  request_body = build_completion_request(prompt, options)
  response = make_completion_request(request_body)
  extract_content(response)
rescue Faraday::Error => e
  handle_request_error(e)
end