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# File '/home/runner/work/gritz/gritz/sources/gritz-core/lib/gritz/client.rb', line 20
def define(stub_class, target:, credentials: :insecure, channel_args: {}, deadline: nil,
safety_margin: 0.01, service_config: nil, middleware: nil, adapter: nil)
unless stub_class.is_a?(Class) && !stub_class.public_instance_methods(false).empty?
raise ArgumentError, "stub_class must define RPC methods"
end
raise ArgumentError, "target must be a nonempty String" unless target.is_a?(String) && !target.strip.empty? && !target.include?("\0")
raise ArgumentError, "channel_args must be a Hash" unless channel_args.is_a?(Hash)
validate_time!(:deadline, deadline) unless deadline.nil?
validate_time!(:safety_margin, safety_margin)
if middleware && !middleware.is_a?(Middleware::Stack)
raise ArgumentError, "middleware must be a Gritz::Middleware::Stack"
end
args = channel_args.dup
unless service_config.nil?
raise ArgumentError, "service_config must be a JSON object" unless service_config.is_a?(Hash)
args["grpc.service_config"] = JSON.generate(service_config)
validate_json!(service_config)
end
definition = Definition.new(stub_class:, target: target.dup.freeze, credentials:,
args: ChannelRegistry.snapshot(args), deadline:, safety_margin:, middleware:, adapter:)
Module.new do
stub_class.public_instance_methods(false).each do |method|
define_singleton_method(method) do |request, options = {}, **keywords, &block|
raise ArgumentError, "RPC options must be a Hash" unless options.is_a?(Hash)
definition.call(method, request, options.merge(keywords), &block)
end
end
end
rescue JSON::GeneratorError, JSON::NestingError => e
raise ArgumentError, "invalid service_config: #{e.message}"
end
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