Question

I’m trying to query eBay with a FindCompletedItemRequest but the server is returning null

Heres the code

public static CustomFindingService FindingService(){
CustomFindingService findingService;
log.InfoFormat("Connect to Ebay: START");

findingService = new CustomFindingService("XXXXXX-XXXX-XXXXX-XXXXX-XXXXX");
findingService.UseDefaultCredentials = true;

log.InfoFormat("Connect to Ebay: SUCCESS");
return findingService;
   }

var fcir = new FindCompletedItemsRequest {keywords = "5mp", categoryId =new string[] {"31388"}}; // 31388 is digital cameras
var l = FindingService().findCompletedItems(fcir); 

I have tried removing categoryId and/switching the keywords nothing seems to help. Debugging has shown me that it is pinging the server just that the server is returning null.

Any Help would be appreciated.

Answer 1

I will suggest that you give the code for CustomFindingService. Being as it may I can take a shot at your problem anyway.

findingService = new CustomFindingService("XXXXXX-XXXX-XXXXX-XXXXX-XXXXX");

I’m guessing that this Generates the request in a similar manner to Finding API – C#.NET code sample with the appID being the series of X’s. I am guessing that you forgot to change request.Headers.Add("X-EBAY-SOA-OPERATION-NAME", "findItemsByKeywords"); to request.Headers.Add("X-EBAY-SOA-OPERATION-NAME", "findCompletedItems");. Simple solution would be to pass it the type of the request. For example.

public static CustomFindingService FindingService(string requestType){ // edit
CustomFindingService findingService;
log.InfoFormat("Connect to Ebay: START");

findingService = new CustomFindingService("XXXXXX-XXXX-XXXXX-XXXXX-XXXXX", requestType); // EDIT
findingService.UseDefaultCredentials = true;

log.InfoFormat("Connect to Ebay: SUCCESS");
return findingService;
   }

var fcir = new FindCompletedItemsRequest {keywords = "5mp", categoryId =new string[] {"31388"}}; // 31388 is digital cameras
var l = FindingService(fcir.GetType().Name).findCompletedItems(fcir); // Edit
// Or since you know the Name already just skip the whole get type thing and pass it in directly.

Also,

log.InfoFormat("Connect to Ebay: SUCCESS");
return findingService;

I am fairy sure that this is incorrect. You don’t conect while generating the request. Rather you connect during var l = FindingService().findCompletedItems(fcir);.