I'm implementing an xAPI test article within Unity using c# with UnityWebRequest and have run into an issue that i can't seem to resolve.
When i Post to http://httpbin.org/post my calls function as expected and the JSON data recieved by the server is also exactly as expected.
When i change the endpoint to https://lrs.adlnet.gov/xapi/ (xAPI statement viewer) my calls return 200 | OK but do not show up. I've validated that the endpoint, authentication and JSON appropriate. (Same data sends fine using the xAPI stringbuilder as well as my own HTML/Javascript test articles.
When i change the endpoint to my SCORM cloud LRS endpoint, i get error 400 | Unknown/Generic HTTP Error but nothing else that's helpful.
PostMethod
public static IEnumerator IPostLRSData(string jsonData, string authKey, string endpoint, Action<string> callback = null) {
UnityWebRequest request = new UnityWebRequest(endpoint, UnityWebRequest.kHttpVerbPOST);
//byte[] bodyRaw = new UTF8Encoding().GetBytes(jsonData);
//byte[] bodyRaw = new ASCIIEncoding().GetBytes(jsonData);
byte[] bodyRaw = System.Text.Encoding.UTF8.GetBytes(jsonData);
request.uploadHandler = (UploadHandler)new UploadHandlerRaw(bodyRaw);
request.downloadHandler = (DownloadHandler)new DownloadHandlerBuffer();
request.SetRequestHeader("Authorization", authKey);
request.SetRequestHeader("X-Experience-API-Version", xAPIUtils.XAPI_VERSION);
request.SetRequestHeader("Content-Type", "application/json");
yield return request.Send();
if(request.isNetworkError || request.isHttpError) {
Debug.LogWarning(request.error);
} else {
// Show results as text
Debug.LogWarning(request.downloadHandler.text);
}
callback(request.responseCode + " | " + request.error);
}
As a madness last attempt i ported a github threaded WebRequest example and tailored it to my project and with it i get similar results as above except it falls silent with the last 2 endpoints. even in debug mode.
Based on what you have provided as your "endpoint" it seems like you need to append the resource that you are requesting, in your case it would be /statements. Consider using TinCan.NET as a library, or at least looking at its implementation since it is OSS. http://rusticisoftware.github.io/TinCan.NET/