Class: A2A::Faraday::Middleware::REST::Response

Inherits:
Faraday::Middleware
  • Object
show all
Defined in:
lib/a2a/faraday/middleware/rest/response.rb

Overview

Faraday response middleware for the A2A HTTP+JSON/REST binding.

Unlike the JSON-RPC binding, REST responses have no envelope —the body IS the result directly. Errors are signaled via HTTP status codes with application/problem+json bodies.

Reads env.request.context to determine which Schema class to instantiate. If no operation is set, passes through.

Instance Method Summary collapse

Instance Method Details

#on_complete(env) ⇒ Object 



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# File 'lib/a2a/faraday/middleware/rest/response.rb', line 22

def on_complete(env)
  operation = env.request.context&.dig(:a2a_operation)
  return unless operation

  if env.status >= 400
    parsed = env.body
    if parsed.is_a?(Hash)
      message = parsed["title"] || parsed["message"] || parsed.to_s
      data    = parsed["detail"]
    else
      message = parsed.to_s
      data    = nil
    end
    raise A2A::RestError.new(message, http_status: env.status, data: data)
  end

  parsed = env.body
  return if parsed.nil?

  if parsed.is_a?(String)
    return if parsed.empty?
    parsed = JSON.parse(parsed)
  end

  schema_class = operation.response_schema
  unless schema_class
    env.body = parsed
    return
  end

  env.body = schema_class.new(parsed)
rescue JSON::ParserError
  # Leave body as-is if JSON parsing fails
end