class Aws::RpcV2::ErrorHandler
@api private
def aws_query_error?(context)
def aws_query_error?(context) context.config.api.metadata['awsQueryCompatible'] && context.http_response.headers['x-amzn-query-error'] end
def aws_query_error_code(context)
def aws_query_error_code(context) query_header = context.http_response.headers['x-amzn-query-error'] error, _type = query_header.split(';') # type not supported remove_prefix(error, context) end
def call(context)
def call(context) # Malformed responses should throw an http based error, so we check # 200 range for error handling only for this case. @handler.call(context).on(200..599) do |response| if !valid_response?(context) code, message, data = http_status_error(context) response.error = build_error(context, code, message, data) elsif (300..599).cover?(context.http_response.status_code) response.error = error(context) end response.data = nil end end
def error_code(data, context)
def error_code(data, context) # This is not correct per protocol tests. awsQueryError is intended to populate the # error code of the error class. The error class should come from __type. Query and # query compatible services currently have dynamic errors raised from error codes instead # of the modeled error class. However, changing this in this major version would break # existing usage. code = if aws_query_error?(context) aws_query_error_code(context) else data['__type'] end if code code.split('#').last else http_status_error_code(context) end end
def extract_error(body, context)
def extract_error(body, context) data = RpcV2.decode(body) code = error_code(data, context) message = data['message'] data = parse_error_data(context, body, code) [code, message, data] rescue Cbor::Error [http_status_error_code(context), '', EmptyStructure.new] end
def parse_error_data(context, body, code)
def parse_error_data(context, body, code) data = EmptyStructure.new if (error_rules = context.operation.errors) error_rules.each do |rule| # match modeled shape name with the type(code) only # some type(code) might contains invalid characters # such as ':' (efs) etc match = rule.shape.name == code.gsub(/[^^a-zA-Z0-9]/, '') next unless match && rule.shape.members.any? data = Parser.new(rule).parse(body) end end data end
def remove_prefix(error_code, context)
def remove_prefix(error_code, context) if (prefix = context.config.api.metadata['errorPrefix']) error_code.sub(/^#{prefix}/, '') else error_code end end
def valid_response?(context)
def valid_response?(context) req_header = context.http_request.headers['smithy-protocol'] resp_header = context.http_response.headers['smithy-protocol'] req_header == resp_header end