Class: Terret::OpenRouter::AsyncTransport

Inherits:
Object
  • Object
show all
Defined in:
lib/terret/openrouter/async_transport.rb

Overview

Default transport: streams over async-http on the Fiber scheduler. Sync reuses a running reactor when called from inside one and spins a temporary reactor otherwise, so the adapter blocks correctly in both plain Ruby and Async callers. The connection stays open only for the duration of the block, which is why the contract yields rather than returns: an SSE body must be consumed before the response closes.

Constant Summary collapse

CONNECT_ERRORS = 
[SystemCallError, SocketError, IOError, Async::TimeoutError].freeze

Instance Method Summary collapse

Constructor Details

#initialize(timeout: 120) ⇒ AsyncTransport

Returns a new instance of AsyncTransport.



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# File 'lib/terret/openrouter/async_transport.rb', line 18

def initialize(timeout: 120)
  @timeout = timeout
end

Instance Method Details

#call(url:, headers:, body:) ⇒ Object 



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# File 'lib/terret/openrouter/async_transport.rb', line 22

def call(url:, headers:, body:)
  Sync do
    endpoint = Async::HTTP::Endpoint.parse(url, timeout: @timeout)
    client = Async::HTTP::Client.new(endpoint)
    begin
      response = begin
        client.post(endpoint.path, headers, body)
      rescue *CONNECT_ERRORS => e
        raise LLM::RetryableError, "connection failed: #{e.class}: #{e.message}"
      end
      begin
        chunks = Enumerator.new { |y| response.body&.each { |c| y << c } }
        yield response.status, chunks
      ensure
        response.close
      end
    ensure
      client.close
    end
  end
end