question

Hi, thanks for the answer, but that's what i have read from the docs.

Here's my call:

TradeExample.OpenTrade("ItemCorn", "ItemWhat", null);

It's my first time using trades, so for now i'm just trying to trade corn with wheat, and i set it to null as i want every player to be able to see it. I'm almsot sure that i am not writing this the right way so could you show me the way please?

Unity doesn't show any error in the editor, but during runtime , and when this is called, it displays this error message:

OpenTrade failure: Invalid input parameters
UnityEngine.Debug:LogError(Object)
PlayFab.Examples.<FailCallback>c__AnonStorey9:<>m__0(PlayFabError) (at Assets/PlayFabSDK/Examples/API/PfSharedControllerEx.cs:76)
PlayFab.Internal.ResultContainer`1:HandleResults(CallRequestContainer, Delegate, ErrorCallback, Action`2) (at Assets/PlayFabSDK/Internal/ResultContainer.cs:86)
PlayFab.<OpenTrade>c__AnonStoreyDE:<>m__FC(CallRequestContainer) (at Assets/PlayFabSDK/Public/PlayFabClientAPI.cs:1860)
PlayFab.CallRequestContainer:InvokeCallback() (at Assets/PlayFabSDK/Public/PlayFabErrors.cs:250)
PlayFab.Internal.<MakeRequestViaUnity>c__Iterator0:MoveNext() (at Assets/PlayFabSDK/Internal/PlayFabHTTP.cs:252)

Thanks, that's helpful. The input parameters are all arrays of strings, rather than simple strings, so if you create arrays and add those strings to them, you should be able to call the API no problem.

I just tried it. Still doesn't work. I'm having the same error:

OpenTrade failure: Invalid input parameters
UnityEngine.Debug:LogError(Object)
PlayFab.Examples.<FailCallback>c__AnonStorey9:<>m__0(PlayFabError) (at Assets/PlayFabSDK/Examples/API/PfSharedControllerEx.cs:76)
PlayFab.Internal.ResultContainer`1:HandleResults(CallRequestContainer, Delegate, ErrorCallback, Action`2) (at Assets/PlayFabSDK/Internal/ResultContainer.cs:86)
PlayFab.<OpenTrade>c__AnonStoreyDE:<>m__FC(CallRequestContainer) (at Assets/PlayFabSDK/Public/PlayFabClientAPI.cs:1860)
PlayFab.CallRequestContainer:InvokeCallback() (at Assets/PlayFabSDK/Public/PlayFabErrors.cs:250)
PlayFab.Internal.<MakeRequestViaUnity>c__Iterator0:MoveNext() (at Assets/PlayFabSDK/Internal/PlayFabHTTP.cs:252)

Here's the code i used:

string[] givenTradeName = new string[1];

givenTradeName[0] = "ItemCorn";

TradeExample.OPenTrade(givenTradeName);

Where is the error in my code?

My apologies - I completely overlooked the way you were passing in the parameters. All of our API calls in that SDK use the same pattern: You create a request object, fill it out, and then pass it to the function along with your callbacks. Here's the example from the testing sample in our Unity SDK (https://github.com/PlayFab/UnitySDK/blob/56b2daf8f1d2c5bb56fda287d2cde4da6f5d4038/PlayFabCombinedTestingSample/Assets/PlayFabSDK/Examples/API/Client/TradeExample.cs):

public static void OpenTrade(params string[] offeredInventoryInstanceIds)
{
  var openRequest = new ClientModels.OpenTradeRequest();
  // Optional field: null is anybody, alternately if specified, this is a targeted trade request
  // In this example, we restrict the trade to ourselves (because I don't have multiple clients for this example)
  // A normal trade process would use all the same steps, but would interact between multliple clients
  openRequest.AllowedPlayerIds = new List<string>() { PfSharedModelEx.globalClientUser.playFabId };
  // Offering the items you have
  openRequest.OfferedInventoryInstanceIds = new List<string>();
  openRequest.OfferedInventoryInstanceIds.AddRange(offeredInventoryInstanceIds);
  // Listing the items you want
  openRequest.RequestedCatalogItemIds = new List<string>() { PfSharedModelEx.swillItemId };
  PlayFabClientAPI.OpenTrade(openRequest, OpenTradeCallback, PfSharedControllerEx.FailCallback("OpenTrade"));
}

Thanks a lot for your answer, i will try it right now and get back to you then

Ok,till not working, so here's what i've done:

first i have this in PlayFabManager:

 public void SetTrade()
 {
  string[] names = new string[] {"ItemCorn", "IemPotato", "ItemOlive"};
  TradeExample.OpenTrade (names);
 }

Then in TradeExample i have modified OpenTrade to integrate my variables:

  public static void OpenTrade(params string[] offeredInventoryInstanceIds)
  {
   List<string> wantedList = new List<string>(2){"ItemGrapes","ItemSugar"};
   var openRequest = new ClientModels.OpenTradeRequest();
   openRequest.AllowedPlayerIds = new List<string>() { PfSharedModelEx.globalClientUser.playFabId };
   openRequest.OfferedInventoryInstanceIds = new List<string> ();
   openRequest.OfferedInventoryInstanceIds.AddRange(offeredInventoryInstanceIds);
   // Listing the items you want
   openRequest.RequestedCatalogItemIds = new List<string>() { PfSharedModelEx.swillItemId };
   openRequest.RequestedCatalogItemIds.AddRange (wantedList);
   PlayFabClientAPI.OpenTrade(openRequest, OpenTradeCallback, PfSharedControllerEx.FailCallback("OpenTrade"));
  }

And i still get the same error:

OpenTrade failure: Invalid input parameters
UnityEngine.Debug:LogError(Object)
PlayFab.Examples.<FailCallback>c__AnonStorey9:<>m__0(PlayFabError) (at Assets/PlayFabSDK/Examples/API/PfSharedControllerEx.cs:76)
PlayFab.Internal.ResultContainer`1:HandleResults(CallRequestContainer, Delegate, ErrorCallback, Action`2) (at Assets/PlayFabSDK/Internal/ResultContainer.cs:86)
PlayFab.<OpenTrade>c__AnonStoreyDE:<>m__FC(CallRequestContainer) (at Assets/PlayFabSDK/Public/PlayFabClientAPI.cs:1860)
PlayFab.CallRequestContainer:InvokeCallback() (at Assets/PlayFabSDK/Public/PlayFabErrors.cs:250)
PlayFab.Internal.<MakeRequestViaUnity>c__Iterator0:MoveNext() (at Assets/PlayFabSDK/Internal/PlayFabHTTP.cs:252)

Can you check in the debugger to see what the specific values are that you've set in the request? For example, did you actually add the Swill item to your own catalog and use the sample code to retrieve it? Also, have you defined the callbacks in question, or are you using the test code?

I am using the test code: TradeExample

Ok so, now i see the error with the swill item ( didn't( figure out it WAS an item). i removed it and replaced it by my list of requestedItems. Here's the updated code:

  public static void OpenTrade(params string[] offeredInventoryInstanceIds)
  {
   List<string> wantedList = new List<string>(2){"ItemGrapes","ItemSugar"};
   var openRequest = new ClientModels.OpenTradeRequest();
   openRequest.AllowedPlayerIds = new List<string>() { PfSharedModelEx.globalClientUser.playFabId };
   openRequest.OfferedInventoryInstanceIds = new List<string> ();
   openRequest.OfferedInventoryInstanceIds.AddRange(offeredInventoryInstanceIds);
   // Listing the items you want
   openRequest.RequestedCatalogItemIds = wantedList;
   Debug.Log ("" + openRequest.OfferedInventoryInstanceIds[0] + openRequest.OfferedInventoryInstanceIds[1] + openRequest.OfferedInventoryInstanceIds[2]);
//   openRequest.RequestedCatalogItemIds.AddRange (wantedList);
   PlayFabClientAPI.OpenTrade(openRequest, OpenTradeCallback, PfSharedControllerEx.FailCallback("OpenTrade"));
  }

Of course it hasn't changed a thing. All the other items i am using are added to my catalog and set as tradable. And i also added them to my inventory ( directly granted in the manager).

From what i read, you seem to be saying that items have to be retrieved first? What do you mean? Do i have to load the catalog in the TradeExample script?

Do items have to be set in PFShareedModelEx like the SwillItem was?

And thanks again for your help.

I added every needed items in PfSharedModelEx, name and id variables, just like SwillName and SwillItemId. But it seems that in TradeExample, the "OnCatalogLoaded" and "OnUserLogin" function are never called, they are in the static TradeExample at the start of the script. So i think that the items are never retrieved.