public async Task DeleteData(DynDatabaseRequest request)
{
var domain = DbService.GetDomainPath(request.DatabaseId);
var dataPath = new FlatJsonPath(request.Path);
await Task.Run(() =>
{
// Get existing data
var existingData = DbService.Store.GetKeys(domain)
.Where(x => x.StartsWith(dataPath.TokenPrefix, StringComparison.Ordinal));
// Remove existing data
foreach (var key in existingData)
{
DbService.Store.Delete(domain, key);
}
});
}
public async Task <JToken> GetData(DynDatabaseRequest request, bool shallow = false)
{
var domain = DbService.GetDomainPath(request.DatabaseId);
var dataPath = new FlatJsonPath(request.Path);
return(await Task.Run(() =>
{
if (!DbService.Store.Exists(domain))
{
return null; // 404 - There's no data container
}
// Unflatten and retrieve JSON object
var flatJsonDict = new Dictionary <string, string>();
// Use an optimization to only fetch requested keys
foreach (var key in DbService.Store.GetKeysEnumerable(domain).Where(x =>
x.StartsWith(dataPath.TokenPrefix, StringComparison.Ordinal) ||
x.StartsWith(dataPath.ArrayPrefix, StringComparison.Ordinal)))
{
var val = DbService.Store.Get(domain, key);
flatJsonDict.Add(key, val);
}
var unflattenedJObj = new FlatJsonObject(flatJsonDict).Unflatten();
if (shallow)
{
var resultObject = unflattenedJObj.SelectToken(dataPath.TokenPath);
if (resultObject is JArray)
{
return new JArray(resultObject.Children().Select(c => new JValue(c ?? false)));
}
if (resultObject is JObject)
{
var filteredProps = (resultObject as JObject).Properties().Select(p => new JProperty(p.Name,
(p.Children().FirstOrDefault() is JObject ? true : p.Value) ?? false));
return new JObject(filteredProps);
}
return null;
}
return unflattenedJObj.SelectToken(dataPath.TokenPath);
}));
}
public async Task <string> PlaceData(JObject dataBundle, DynDatabaseRequest request,
NodeDataOvewriteMode overwriteMode, bool shouldRespond = true)
{
var realmDomain = DbService.GetDomainPath(request.DatabaseId);
string responseResult = null; // Optionally used to return a result
var dataPath = new FlatJsonPath(request.Path);
var resultData = string.Empty;
await Task.Run(() =>
{
// Parse server values
if (dataBundle.Children().Count() == 1 &&
dataBundle.First is JProperty &&
(dataBundle.First as JProperty).Name == ServerValueProvider.ServerValueKeyName)
{
var serverValueToken = ((JProperty)dataBundle.First).Value;
var serverValueName =
serverValueToken is JValue ? (serverValueToken as JValue).Value as string : null;
var resultValue = ServerValueProvider.GetValue(serverValueName);
// Now adjust path
// Get the last segment, then remove it
var lastSegment = dataPath.Segments.Last();
dataPath.Segments.RemoveAt(dataPath.Segments.Count - 1);
dataBundle = new JObject(new JProperty(lastSegment, resultValue));
}
// Put in the new data
switch (overwriteMode)
{
case NodeDataOvewriteMode.Update:
{
// Flatten input bundle
var flattenedBundle = new FlatJsonObject(dataBundle, dataPath.TokenPrefix);
// Merge input bundle
foreach (var kvp in flattenedBundle.Dictionary)
{
DbService.Store.Set(realmDomain, kvp.Key, kvp.Value);
}
resultData = dataBundle.ToString();
}
break;
case NodeDataOvewriteMode.Put:
{
// Flatten input bundle
var dataTokenPrefix = dataPath.TokenPrefix;
// Get existing data
var flattenedBundle = new FlatJsonObject(dataBundle, dataTokenPrefix);
var existingData = DbService.Store.GetKeys(realmDomain)
.Where(x => x.StartsWith(dataTokenPrefix, StringComparison.Ordinal));
// Remove existing data
foreach (var key in existingData)
{
DbService.Store.Delete(realmDomain, key);
}
// Add input bundle
foreach (var kvp in flattenedBundle.Dictionary)
{
DbService.Store.Set(realmDomain, kvp.Key, kvp.Value);
}
resultData = dataBundle.ToString();
}
break;
case NodeDataOvewriteMode.Push:
{
// Use the Firebase Push ID algorithm
var pushId = PushIdGenerator.GeneratePushId();
// Create flattened bundle with pushId added to prefix
dataPath.Segments.Add(pushId);
// Flatten input bundle
var flattenedBundle = new FlatJsonObject(dataBundle, dataPath.TokenPrefix);
// Merge input bundle
foreach (var kvp in flattenedBundle.Dictionary)
{
DbService.Store.Set(realmDomain, kvp.Key, kvp.Value);
}
var pushResultBundle = new JObject(new JProperty("name", pushId));
resultData = pushResultBundle.ToString();
}
break;
}
// If response is requested, return the result data
if (shouldRespond)
{
responseResult = resultData;
}
});
return(responseResult);
}
