Class: RailsAIPromptable::Providers::OpenRouterProvider

Inherits:
BaseProvider
  • Object
show all
Defined in:
lib/rails_ai_promptable/providers/openrouter_provider.rb

Instance Method Summary collapse

Constructor Details

#initialize(configuration) ⇒ OpenRouterProvider

Returns a new instance of OpenRouterProvider.



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# File 'lib/rails_ai_promptable/providers/openrouter_provider.rb', line 9

def initialize(configuration)
  super
  @api_key = configuration.openrouter_api_key || configuration.api_key
  @base_url = configuration.openrouter_base_url || "https://openrouter.ai/api/v1"
  @timeout = configuration.timeout
  @app_name = configuration.openrouter_app_name
  @site_url = configuration.openrouter_site_url
end

Instance Method Details

#generate(prompt:, model:, temperature:, format:) ⇒ Object 



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# File 'lib/rails_ai_promptable/providers/openrouter_provider.rb', line 18

def generate(prompt:, model:, temperature:, format:)
  uri = URI.parse("#{@base_url}/chat/completions")
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = uri.scheme == "https"
  http.read_timeout = @timeout

  headers = {
    "Content-Type" => "application/json",
    "Authorization" => "Bearer #{@api_key}"
  }

  # OpenRouter requires these headers for tracking/attribution
  headers["HTTP-Referer"] = @site_url if @site_url
  headers["X-Title"] = @app_name if @app_name

  request = Net::HTTP::Post.new(uri.request_uri, headers)

  body = {
    model: model,
    messages: [{ role: "user", content: prompt }],
    temperature: temperature,
    max_tokens: 2048
  }

  request.body = body.to_json

  response = http.request(request)
  parsed = JSON.parse(response.body)

  if response.code.to_i >= 400
    error_message = parsed.dig("error", "message") || "Unknown error"
    raise "OpenRouter API error: #{error_message}"
  end

  # Extract content (OpenAI-compatible format)
  parsed.dig("choices", 0, "message", "content")
rescue StandardError => e
  RailsAIPromptable.configuration.logger.error("[rails_ai_promptable] openrouter error: #{e.message}")
  nil
end