/// <summary>
/// Delete a key in Firebase. Calls OnDeleteSuccess on success, OnDeleteFailed on failed.
/// OnDeleteSuccess action contains the corresponding Firebase and the response Snapshot
/// OnDeleteFailed action contains the error exception
/// </summary>
/// <param name="param">REST call parameters on a string. Example: "auth=ASDF123"</param>
/// <returns></returns>
public void Delete(string param = "")
{
try
{
if (Credential != "")
{
param = (new FirebaseParam(param).Auth(Credential)).Parameter;
}
string url = Endpoint;
if (param != string.Empty)
{
url += "?" + param;
}
HttpWebRequest rq = (HttpWebRequest)WebRequest.Create(url);
FieldInfo headersFieldInfo = rq.GetType().GetField("webHeaders", System.Reflection.BindingFlags.NonPublic
| System.Reflection.BindingFlags.Instance
| System.Reflection.BindingFlags.GetField);
CusteredHeaderCollection WssHeaders = new CusteredHeaderCollection(Host);
headersFieldInfo.SetValue(rq, WssHeaders);
rq.Proxy = null;
rq.Method = "DELETE";
rq.ContentLength = 0;
rq.ContentType = "application/json";
using (HttpWebResponse resp = (HttpWebResponse)rq.GetResponse())
{
string responseValue = string.Empty;
if (resp.StatusCode == HttpStatusCode.NoContent)
{
DataSnapshot snapshot = new DataSnapshot();
if (OnDeleteSuccess != null)
{
OnDeleteSuccess(this, snapshot);
}
return;
}
if (resp.StatusCode != HttpStatusCode.OK)
{
if (OnDeleteFailed != null)
{
OnDeleteFailed(this, FirebaseError.Create(resp.StatusCode));
}
return;
}
using (Stream responseStream = resp.GetResponseStream())
{
if (responseStream != null)
{
using (StreamReader rdr = new StreamReader(responseStream))
{
responseValue = rdr.ReadToEnd();
}
}
}
if (responseValue != "")
{
DataSnapshot snapshot = new DataSnapshot(responseValue);
if (OnDeleteSuccess != null)
{
OnDeleteSuccess(this, snapshot);
}
}
else
{
if (OnDeleteFailed != null)
{
OnDeleteFailed(this, new FirebaseError(resp.StatusCode, "No response received."));
}
}
}
}
catch (WebException webEx)
{
if (OnDeleteFailed != null)
{
OnDeleteFailed(this, FirebaseError.Create(webEx));
}
}
catch (Exception ex)
{
if (OnDeleteFailed != null)
{
OnDeleteFailed(this, new FirebaseError(ex.Message));
}
}
}
/// <summary>
/// Update value of a key on Firebase. Calls OnUpdateSuccess on success, OnUpdateFailed on failed.
/// OnUpdateSuccess action contains the corresponding Firebase and the response Snapshot
/// OnUpdateFailed action contains the error exception
/// </summary>
/// <param name="_val">Update value</param>
/// <param name="param">REST call parameters on a string. Example: "auth=ASDF123"</param>
/// <returns></returns>
public void SetValue(object _val, string param = "")
{
try
{
if (Credential != "")
{
param = (new FirebaseParam(param).Auth(Credential)).Parameter;
}
string url;
if (_val is Dictionary <string, object> )
{
url = Endpoint;
}
else
{
if (parent == null)
{
if (OnUpdateFailed != null)
{
OnUpdateFailed(this, new FirebaseError("Cannot set non-{key:value} object to root Firebase."));
}
return;
}
url = parent.Endpoint;
Dictionary <string, object> tempDict = new Dictionary <string, object>();
tempDict[key] = _val;
_val = tempDict;
}
if (param != string.Empty)
{
url += "?" + param;
}
HttpWebRequest rq = (HttpWebRequest)WebRequest.Create(url);
FieldInfo headersFieldInfo = rq.GetType().GetField("webHeaders", System.Reflection.BindingFlags.NonPublic
| System.Reflection.BindingFlags.Instance
| System.Reflection.BindingFlags.GetField);
CusteredHeaderCollection WssHeaders = new CusteredHeaderCollection(Host);
headersFieldInfo.SetValue(rq, WssHeaders);
rq.Proxy = null;
rq.Method = "PATCH";
rq.ContentLength = 0;
rq.ContentType = "application/json";
//UTF8Encoding encoding = new UTF8Encoding();
byte[] bytes = Encoding.GetEncoding("iso-8859-1").GetBytes(Json.Serialize(_val));
rq.ContentLength = bytes.Length;
using (Stream writeStream = rq.GetRequestStream())
{
writeStream.Write(bytes, 0, bytes.Length);
}
using (HttpWebResponse resp = (HttpWebResponse)rq.GetResponse())
{
string responseValue = string.Empty;
if (resp.StatusCode == HttpStatusCode.NoContent)
{
DataSnapshot snapshot = new DataSnapshot();
if (OnUpdateSuccess != null)
{
OnUpdateSuccess(this, snapshot);
}
return;
}
if (resp.StatusCode != HttpStatusCode.OK)
{
if (OnUpdateFailed != null)
{
OnUpdateFailed(this, FirebaseError.Create(resp.StatusCode));
}
return;
}
using (Stream responseStream = resp.GetResponseStream())
{
if (responseStream != null)
{
using (StreamReader rdr = new StreamReader(responseStream))
{
responseValue = rdr.ReadToEnd();
}
}
}
if (responseValue != "")
{
DataSnapshot snapshot = new DataSnapshot(responseValue);
if (OnUpdateSuccess != null)
{
OnUpdateSuccess(this, snapshot);
}
}
else
{
if (OnUpdateFailed != null)
{
OnUpdateFailed(this, new FirebaseError(resp.StatusCode, "No response received."));
}
}
}
}
catch (WebException webEx)
{
if (OnUpdateFailed != null)
{
OnUpdateFailed(this, FirebaseError.Create(webEx));
}
}
catch (Exception ex)
{
if (OnUpdateFailed != null)
{
OnUpdateFailed(this, new FirebaseError(ex.Message));
}
}
}
