module ErrorFormatter

module Json

extend Base

class << self

def call(message, backtrace, options = {}, env = nil, original_exception = nil)

result = wrap_message(present(message, env))

result = merge_rescue_options(result, backtrace, options, original_exception) if result.is_a?(Hash)

::Grape::Json.dump(result)

end

private

def wrap_message(message)

if message.is_a?(Hash)

message

elsif message.is_a?(Exceptions::ValidationErrors)

message.as_json

else

{ error: ensure_utf8(message) }

end

end

def ensure_utf8(message)

return message unless message.respond_to? :encode

message.encode('UTF-8', invalid: :replace, undef: :replace)

end

def merge_rescue_options(result, backtrace, options, original_exception)

rescue_options = options[:rescue_options] || {}

result = result.merge(backtrace: backtrace) if rescue_options[:backtrace] && backtrace && !backtrace.empty?

result = result.merge(original_exception: original_exception.inspect) if rescue_options[:original_exception] && original_exception

result

end

end

end

end