Class: Anthemic::Providers::Anthropic

Inherits:
Base
  • Object
show all
Defined in:
lib/anthemic/providers/anthropic.rb

Constant Summary collapse

BASE_URL = 
"https://api.anthropic.com/v1"
DEFAULT_MODEL = 
"claude-3-opus-20240229"

Instance Method Summary collapse

Constructor Details

#initialize(model: nil, api_key: nil) ⇒ Anthropic

Returns a new instance of Anthropic.

Raises:



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# File 'lib/anthemic/providers/anthropic.rb', line 9

def initialize(model: nil, api_key: nil)
  @model = model || DEFAULT_MODEL
  @api_key = api_key || Anthemic.configuration.api_keys[:anthropic]
  
  raise ConfigurationError, "Anthropic API key is required" unless @api_key
  
  @connection = create_connection(BASE_URL)
end

Instance Method Details

#embed(text) ⇒ Array<Float>

Create embeddings for a text (via OpenAI as Anthropic doesn’t have embeddings API) Requires OpenAI API key to be configured



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# File 'lib/anthemic/providers/anthropic.rb', line 60

def embed(text)
  openai_key = Anthemic.configuration.api_keys[:openai]
  unless openai_key
    raise ConfigurationError, "OpenAI API key is required for embeddings with Anthropic provider"
  end
  
  openai = Openai.new(api_key: openai_key)
  openai.embed(text)
end

#generate(prompt, options = {}) ⇒ String

Generate a response from Anthropic Claude



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# File 'lib/anthemic/providers/anthropic.rb', line 23

def generate(prompt, options = {})
  messages = []
  
  # Check if prompt is already formatted as messages
  if prompt.is_a?(Array) && prompt.all? { |p| p.is_a?(Hash) && p[:role] && p[:content] }
    messages = prompt
  else
    messages = [{ role: "user", content: prompt }]
  end
  
  response = @connection.post("messages") do |req|
    req.headers["x-api-key"] = @api_key
    req.headers["anthropic-version"] = "2023-06-01"
    
    req.body = {
      model: @model,
      messages: messages,
      max_tokens: options[:max_tokens] || 1000,
      temperature: options[:temperature] || 0.7,
      top_p: options[:top_p] || 1.0
    }
  end
  
  if response.status == 200
    response.body["content"][0]["text"]
  else
    raise ProviderError, "Anthropic API error: #{response.body["error"]["message"]}"
  end
rescue Faraday::Error => e
  raise ProviderError, "Anthropic connection error: #{e.message}"
end