Class: Spectre::Openrouter::Embeddings

Inherits:
Object
  • Object
show all
Defined in:
lib/spectre/openrouter/embeddings.rb

Constant Summary collapse

API_URL = 
'https://openrouter.ai/api/v1/embeddings'
DEFAULT_MODEL =

OpenRouter proxies OpenAI and others; user can override with provider/model

'text-embedding-3-small'
DEFAULT_TIMEOUT = 
60

Class Method Summary collapse

Class Method Details

.create(text, model: DEFAULT_MODEL, **args) ⇒ Array<Float>

Generate embeddings for a given text

Parameters:

  • text (String) —

    the text input for which embeddings are to be generated

  • model (String) (defaults to: DEFAULT_MODEL) —

    the model to be used for generating embeddings, defaults to DEFAULT_MODEL

  • args (Hash) —

    optional arguments like read_timeout and open_timeout

Returns:

  • (Array<Float>) —

    the generated embedding vector

Raises:

  • (APIKeyNotConfiguredError) —

    if the API key is not set

  • (RuntimeError) —

    for general API errors or unexpected issues



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# File 'lib/spectre/openrouter/embeddings.rb', line 22

def self.create(text, model: DEFAULT_MODEL, **args)
  cfg = Spectre.openrouter_configuration
  api_key = cfg&.api_key
  raise APIKeyNotConfiguredError, 'API key is not configured' unless api_key

  uri = URI(API_URL)
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true
  http.read_timeout = args.fetch(:read_timeout, DEFAULT_TIMEOUT)
  http.open_timeout = args.fetch(:open_timeout, DEFAULT_TIMEOUT)

  headers = {
    'Content-Type' => 'application/json',
    'Authorization' => "Bearer #{api_key}"
  }
  headers['HTTP-Referer'] = cfg.referer if cfg.respond_to?(:referer) && cfg.referer
  headers['X-Title'] = cfg.app_title if cfg.respond_to?(:app_title) && cfg.app_title

  request = Net::HTTP::Post.new(uri.path, headers)
  request.body = { model: model, input: text }.to_json
  response = http.request(request)

  unless response.is_a?(Net::HTTPSuccess)
    raise "OpenRouter API Error: #{response.code} - #{response.message}: #{response.body}"
  end

  JSON.parse(response.body).dig('data', 0, 'embedding')
rescue JSON::ParserError => e
  raise "JSON Parse Error: #{e.message}"
end