我有一个普通的铁轨问题,尽管有大量的搜索,我仍然没有找到答案。 为json rest apis 处理运行时出现的异常(意外错误)的推荐方法是什么?我在使用respond_with更新操作时遇到了一些麻烦。我不得不回应response_to。例如,这是一个好的模式吗?还有更好的选择吗?此外,其他应用程序采取什么方法来覆盖所有操作,以便以正确的格式将响应发送回客户端(html用于html请求,json用于应用程序/ json请求)?
def update
begin
User.update_attributes(params[:user]))
#assume some other logic here raises an exception (a runtime unexpected error)
rescue => ex
errors = {}
errors['errors'] = [] << ex.message
#not having this rescue here will cause rails to respond with a html error page
#which is not what the client is looking for (client expects json responses)
#however, if I rescue any runtime errors, I have a chance to respond
#in the way the client expects. Also, respond_with here won't work
#because I am getting a 204 response back. So I am forced to use respond_to in the ugly way
respond_to do |format|
format.html # some.html.erb
format.json { render :json => errors.to_json, :status=>400 }
end
end
end
答案 0 :(得分:0)
试试这个
respond_to do |format|
...
format.json { render :json => ex.message, :status => 400 }
end