Class: ActiveHarness::Providers::Anthropic

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

Overview

Anthropic Claude — native Messages API (not OpenAI-compatible). docs.anthropic.com/en/api/messages

Constant Summary collapse

ANTHROPIC_VERSION = 
"2023-06-01"
DEFAULT_MAX_TOKENS = 
1024

Constants inherited from Base

Base::HTTP, Base::STREAMING_HTTP

Instance Method Summary collapse

Instance Method Details

#call(model:, messages:, temperature: 0.7, stream: nil) ⇒ Object 



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# File 'lib/active_harness/providers/anthropic.rb', line 11

def call(model:, messages:, temperature: 0.7, stream: nil)
  system_msg, chat_messages = extract_system(messages)

  body = {
    model:       model,
    max_tokens:  DEFAULT_MAX_TOKENS,
    temperature: temperature,
    messages:    chat_messages
  }
  body[:system] = system_msg if system_msg

  headers = {
    "Content-Type"      => "application/json",
    "x-api-key"         => api_key,
    "anthropic-version" => ANTHROPIC_VERSION
  }

  return call_streaming(url: config.anthropic_api_url, headers: headers, body: body, stream: stream, provider: :anthropic, model: model) if stream

  raw  = post_json(URI(config.anthropic_api_url), headers: headers, body: body)
  data = parse!(raw)
  handle_error!(data)

  {
    content:  data.dig("content", 0, "text").to_s.strip,
    provider: :anthropic,
    model:    data["model"] || model,
    usage:    extract_usage_anthropic(data)
  }
end