Class: Zwischen::AI::AnthropicClient

Inherits:
BaseClient show all
Defined in:
lib/zwischen/ai/anthropic_client.rb

Constant Summary collapse

API_BASE_URL = 
"https://api.anthropic.com/v1/"
API_VERSION = 
"2023-06-01"

Instance Attribute Summary

Attributes inherited from BaseClient

#api_key, #config

Instance Method Summary collapse

Constructor Details

#initialize(api_key: nil, config: {}) ⇒ AnthropicClient

Returns a new instance of AnthropicClient.

Raises:



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# File 'lib/zwischen/ai/anthropic_client.rb', line 13

def initialize(api_key: nil, config: {})
  super
  raise Error, "Claude API key not found." unless @api_key

  @client = Faraday.new(url: API_BASE_URL) do |conn|
    conn.request :json
    conn.response :json, content_type: /\bjson$/
    conn.adapter Faraday.default_adapter
  end
end

Instance Method Details

#analyze(prompt) ⇒ Object 



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# File 'lib/zwischen/ai/anthropic_client.rb', line 24

def analyze(prompt)
  model = @config["model"] || "claude-3-5-sonnet-20241022"

  # Relative path: a leading slash would discard the /v1 prefix of the base URL
  response = @client.post("messages") do |req|
    req.headers["x-api-key"] = @api_key
    req.headers["anthropic-version"] = API_VERSION
    req.body = {
      model: model,
      max_tokens: 4096,
      messages: [
        {
          role: "user",
          content: prompt
        }
      ]
    }
  end

  body = response.body
  body = JSON.parse(body) if body.is_a?(String)

  if response.success?
    body.dig("content", 0, "text")
  else
    error_message = body.dig("error", "message") rescue body
    raise Error, "Claude API error: #{error_message}"
  end
rescue Faraday::Error => e
  raise Error, "Network error: #{e.message}"
rescue JSON::ParserError => e
  raise Error, "Invalid JSON response: #{e.message}"
end