restangular：addRequestInterceptor：如果响应格式错误，则生成错误

Question

在我的addRequestInterceptor函数中，我想确保获得正确的响应结构，否则会生成错误。 例如，我希望服务器对getList的响应是response.data.items，例如{ data: items: [...] }（根据google style guide） 所以我希望请求拦截器函数在结构无效时生成错误（而不是返回undefined等）。

Answer 1

查看Restangular文档以进行配置。

https://github.com/mgonto/restangular#addresponseinterceptor

app.config(function(RestangularProvider) {

    // add a response intereceptor
    RestangularProvider.addResponseInterceptor(function(data, operation, what, url, response, deferred) {

      //Done if the getList operation type is made so that you don't do the same for a single get
      if(operation === 'getList'){

        //Checks if items is undefined and if it is an array
        if(!angular.isUndefined(data.items) && angular.isArray(data.items)){
           deferred.resolve(data.items);
        } else {
           deferred.reject({error: 'Malformed Response. That is not right!'});
        }

      } else {
           //Just continue and resolve the data on other operations
           //Add whatever else you want for handling responses
           deferred.resolve(data);
      }

    });

然后，您可以在请求资源上的.then（）中处理请求的错误函数的错误。