Class: PromptObjects::Primitives::HttpGet

Inherits:
PromptObjects::Primitive show all
Defined in:
lib/prompt_objects/primitives/http_get.rb

Overview

Primitive capability to fetch content from a URL.

Instance Attribute Summary

Attributes inherited from Capability

#state

Instance Method Summary collapse

Methods inherited from PromptObjects::Primitive

#initialize

Methods inherited from Capability

#descriptor, execution_policy, execution_policy_definition, #execution_policy_definition, #execution_policy_signature, #initialize, #resolved_execution_policy

Constructor Details

This class inherits a constructor from PromptObjects::Primitive

Instance Method Details

#description ⇒ Object 



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# File 'lib/prompt_objects/primitives/http_get.rb', line 16

def description
  "Fetch content from a URL via HTTP GET request"
end

#name ⇒ Object 



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# File 'lib/prompt_objects/primitives/http_get.rb', line 12

def name
  "http_get"
end

#parameters ⇒ Object 



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# File 'lib/prompt_objects/primitives/http_get.rb', line 20

def parameters
  {
    type: "object",
    properties: {
      url: {
        type: "string",
        description: "The URL to fetch"
      }
    },
    required: ["url"]
  }
end

#receive(message, context:) ⇒ Object 



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# File 'lib/prompt_objects/primitives/http_get.rb', line 33

def receive(message, context:)
  url = message[:url] || message["url"]

  return "Error: URL is required" if url.nil? || url.empty?

  begin
    uri = URI.parse(url)

    unless %w[http https].include?(uri.scheme)
      return "Error: Only http and https URLs are supported"
    end

    response = Net::HTTP.get_response(uri)

    case response
    when Net::HTTPSuccess
      content = response.body.to_s

      # Truncate very large responses
      if content.length > 50_000
        content = content[0, 50_000] + "\n\n... [truncated, response is #{content.length} bytes]"
      end

      content
    when Net::HTTPRedirection
      "Redirected to: #{response['location']}"
    else
      "HTTP Error: #{response.code} #{response.message}"
    end
  rescue URI::InvalidURIError
    "Error: Invalid URL format"
  rescue SocketError => e
    "Error: Could not connect - #{e.message}"
  rescue Timeout::Error
    "Error: Request timed out"
  rescue StandardError => e
    "Error fetching URL: #{e.message}"
  end
end