我正在编写解析云代码,用于 ping eBay,返回带有项目结果的 JSON 数据,然后解析该数据并将前两个类别存储到数组中。发送到 eBay 的查询基于用户在我的 iOS 应用程序的 itemSearch 栏中输入的任何内容。当我尝试发送“iPhone”之类的查询时,它给我一个错误,说明如下:
ReferenceError: data is not defined
at Object.Parse.Cloud.httpRequest.success (main.js:34:11)
at Object.<anonymous> (<anonymous>:565:19) (Code: 141, Version: 1.2.18)
objective-c代码如下:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if (sender != self.nextButton) return;
if (self.itemSearch.text.length > 0) {
[PFCloud callFunctionInBackground:@"eBayCategorySearch"
withParameters:@{@"item": self.itemSearch.text}
block:^(NSString *result, NSError *error) {
if (!error) {
NSLog(@"Successfully pinged eBay!");
}
}];
}
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
在Parse上运行的云端代码(main.js)如下:
Parse.Cloud.define("eBayCategorySearch", function(request, response) {
url = 'http://svcs.ebay.com/services/search/FindingService/v1';
Parse.Cloud.httpRequest({
url: url,
params: {
'OPERATION-NAME' : 'findItemsByKeywords',
'SERVICE-VERSION' : '1.12.0',
'SECURITY-APPNAME' : '*APP ID GOES HERE*',
'GLOBAL-ID' : 'EBAY-US',
'RESPONSE-DATA-FORMAT' : 'JSON',
'itemFilter(0).name=ListingType' : 'itemFilter(0).value=FixedPrice',
'keywords' : request.params.item,
// your other params
},
success: function (httpResponse) {
response.success(httpResponse.data)
// count number of times each unique primaryCategory shows up (based on categoryId), return top two (done with a for loop?)
var userCategories = {};
data.findItemsByKeywordsResponse.searchResult[0].item.forEach(function(item)
{
var id = item.primaryCategory[0].categoryId;
if (userCategories[id]) userCategories[id]++;
else userCategories[id] = 1;
});
var top2 = Object.keys(userCategories).sort(function(a, b)
{return userCategories[b]-userCategories[a]; }).slice(0, 2);
console.log('Top two categories: ' + top2.join(', '));
// deal with success and respond to query
},
error: function (httpResponse) {
console.log('error!!!');
console.error('Request failed with response code ' + httpResponse.status);
}
});
});
我相信这可能是因为 JSON 未正确返回,但我不确定如何确定或如何修复它。感谢您的帮助!
最佳答案
第一步是记录 httpResponse 对象的值。更新您的 success
回调以记录该值:
success: function (httpResponse) {
console.log('Received successful response.'); // <---
console.log(httpResponse); // <---
response.success(httpResponse.data)
// count number of times each unique primaryCategory shows up (based on categoryId), return top two (done with a for loop?)
var userCategories = {};
data.findItemsByKeywordsResponse.searc
您可以在此处阅读有关如何记录数据的信息:https://parse.com/docs/cloud_code_guide#logging
您可以在此处找到有关阅读日志的更多信息:https://parse.com/docs/cloud_code_guide#clt-logs
关于javascript - 在 Xcode 中收到引用错误,指出 undefined object 。,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22698502/