/// <summary>
/// Executes a request and transforms a 412 and 409 response to respective exception type.
/// </summary>
private async Task <JToken> TransformHttpException(MobileServiceSerializer serializer, Func <Task <JToken> > action)
{
try
{
return(await action());
}
catch (MobileServiceInvalidOperationException ex)
{
if (ex.Response.StatusCode != HttpStatusCode.PreconditionFailed &&
ex.Response.StatusCode != HttpStatusCode.Conflict)
{
throw;
}
T item = default(T);
try
{
item = serializer.Deserialize <T>(ex.Value);
}
catch { }
if (ex.Response.StatusCode == HttpStatusCode.PreconditionFailed)
{
throw new MobileServicePreconditionFailedException <T>(ex, item);
}
else if (ex.Response.StatusCode == HttpStatusCode.Conflict)
{
throw new MobileServiceConflictException <T>(ex, item);
}
throw;
}
}
/// <summary>
/// Inserts an <paramref name="instance"/> into the table.
/// </summary>
/// <param name="instance">
/// The instance to insert into the table.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the insert finishes.
/// </returns>
public async Task <JToken> InsertAsync(JObject instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
// Make sure the instance doesn't have an int id set for an insertion
object id = MobileServiceSerializer.GetId(instance, ignoreCase: false, allowDefault: true);
bool isStringIdOrDefaultIntId = id is string || MobileServiceSerializer.IsDefaultId(id);
if (!isStringIdOrDefaultIntId)
{
throw new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
Resources.MobileServiceTable_InsertWithExistingId,
MobileServiceSerializer.IdPropertyName),
"instance");
}
parameters = AddSystemProperties(this.SystemProperties, parameters);
string uriString = GetUri(this.TableName, null, parameters);
MobileServiceHttpResponse response = await this.MobileServiceClient.HttpClient.RequestAsync(HttpMethod.Post, uriString, this.MobileServiceClient.CurrentUser, instance.ToString(Formatting.None), true);
return(GetJTokenFromResponse(response));
}
/// <summary>
/// Updates an instance in the table.
/// </summary>
/// <param name="instance">
/// The instance to update.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the update has finished.
/// </returns>
public async Task UpdateAsync(T instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
JObject value = serializer.Serialize(instance) as JObject;
JToken updatedValue = null;
try
{
updatedValue = await this.UpdateAsync(value, parameters);
}
catch (MobileServicePreconditionFailedException ex)
{
T item = default(T);
try
{
item = serializer.Deserialize <T>(ex.Value);
}
catch { }
throw new MobileServicePreconditionFailedException <T>(ex, item);
}
serializer.Deserialize <T>(updatedValue, instance);
}
/// <summary>
/// Refresh the current instance with the latest values from the
/// table.
/// </summary>
/// <param name="instance">
/// The instance to refresh.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the refresh has finished.
/// </returns>
public async Task RefreshAsync(T instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
object id = serializer.GetId(instance, allowDefault: true);
if (MobileServiceSerializer.IsDefaultId(id))
{
return;
}
if (id is string)
{
MobileServiceSerializer.EnsureValidStringId(id, allowDefault: true);
}
// Get the latest version of this element
JObject refreshed = await this.GetSingleValueAsync(id, parameters);
// Deserialize that value back into the current instance
serializer.Deserialize <T>(refreshed, instance);
}
/// <summary>
/// Updates an instance in the table.
/// </summary>
/// <param name="instance">
/// The instance to update.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the update has finished.
/// </returns>
public async Task UpdateAsync(T instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
object id = serializer.GetId(instance);
if (serializer.IsDefaultId(id))
{
throw new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
Resources.MobileServiceTable_UpdateWithoutId,
MobileServiceUrlBuilder.IdPropertyName),
"instance");
}
string value = serializer.Serialize(instance);
string updatedValue = await this.SendUpdateAsync(id, value, parameters);
serializer.Deserialize <T>(updatedValue, instance);
}
/// <summary>
/// Inserts a new instance into the table.
/// </summary>
/// <param name="instance">
/// The instance to insert.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the insertion has finished.
/// </returns>
public async Task InsertAsync(T instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
object id = serializer.GetId(instance);
// Make sure the instance doesn't have an id set for an insertion
if (!serializer.IsDefaultId(id))
{
throw new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
Resources.MobileServiceTable_InsertWithExistingId,
MobileServiceUrlBuilder.IdPropertyName),
"instance");
}
string value = serializer.Serialize(instance);
string insertedValue = await this.SendInsertAsync(value, parameters);
serializer.Deserialize <T>(insertedValue, instance);
}
/// <summary>
/// Deletes an instance from the table.
/// </summary>
/// <param name="instance">
/// The instance to delete.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the delete has finished.
/// </returns>
public async Task DeleteAsync(T instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
object id = serializer.GetId(instance);
if (serializer.IsDefaultId(id))
{
throw new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
Resources.MobileServiceTable_DeleteWithoutId,
MobileServiceUrlBuilder.IdPropertyName),
"instance");
}
// Send the request
await this.SendDeleteAsync(id, parameters);
// Clear the instance id since it's no longer associated with that
// id on the server (note that reflection is goodly enough to turn
// null into the correct value for us).
serializer.ClearId(instance);
}
/// <summary>
/// Inserts an <paramref name="instance"/> into the table.
/// </summary>
/// <param name="instance">
/// The instance to insert into the table.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <param name="features">
/// Value indicating which features of the SDK are being used in this call. Useful for telemetry.
/// </param>
/// <returns>
/// A task that will complete when the insert finishes.
/// </returns>
internal async Task <JToken> InsertAsync(JObject instance, IDictionary <string, string> parameters, MobileServiceFeatures features)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
// Make sure the instance doesn't have an int id set for an insertion
object id = MobileServiceSerializer.GetId(instance, ignoreCase: false, allowDefault: true);
bool isStringIdOrDefaultIntId = id is string || MobileServiceSerializer.IsDefaultId(id);
if (!isStringIdOrDefaultIntId)
{
throw new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
"Cannot insert if the {0} member is already set.",
MobileServiceSystemColumns.Id),
"instance");
}
features = this.AddRequestFeatures(features, parameters);
string uriString = GetUri(this.TableName, null, parameters);
return(await this.TransformHttpException(async() =>
{
MobileServiceHttpResponse response = await this.MobileServiceClient.HttpClient.RequestAsync(HttpMethod.Post, uriString, this.MobileServiceClient.CurrentUser, instance.ToString(Formatting.None), true, features: this.Features | features);
return GetJTokenFromResponse(response);
}));
}
/// <summary>
/// Inserts an <paramref name="instance"/> into the table.
/// </summary>
/// <param name="instance">
/// The instance to insert into the table.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the insert finishes.
/// </returns>
public async Task <JToken> InsertAsync(JObject instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
// Make sure the instance doesn't have an id set for an insertion
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
object id = serializer.GetId(instance, true);
if (!serializer.IsDefaultId(id))
{
throw new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
Resources.MobileServiceTable_InsertWithExistingId,
MobileServiceUrlBuilder.IdPropertyName),
"instance");
}
string response = await this.SendInsertAsync(instance.ToString(), parameters);
return(response.ParseToJToken());
}
/// <summary>
/// Removes system properties from the passed in item
/// </summary>
/// <param name="item">
/// The item returned from the server
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <param name="version">
/// Set to the value of the version system property before it is removed.
/// </param>
/// <returns>
/// An item that only contains normal fields and the requested system properties
/// </returns>
private JToken RemoveUnrequestedSystemProperties(JToken item, IDictionary <string, string> parameters, string version)
{
object id = null;
if (item == null)
{
return(null);
}
MobileServiceSerializer.TryGetId(item as JObject, true, out id);
if (id == null || MobileServiceSerializer.IsIntegerId(id))
{
return(item);
}
var actualSystemProperties = GetRequestedSystemProperties(parameters);
if (actualSystemProperties == MobileServiceSystemProperties.All)
{
return(item);
}
string ignoredVersion = null;
var cleanedItem = MobileServiceSerializer.RemoveSystemProperties(item as JObject, out ignoredVersion, actualSystemProperties);
if (version != null)
{
cleanedItem[MobileServiceSerializer.VersionSystemPropertyString] = GetValueFromEtag(version);
}
return(cleanedItem);
}
/// <summary>
/// Initializes a new instance of the MobileServiceTables class.
/// </summary>
/// <param name="tableName">
/// The name of the table.
/// </param>
/// <param name="client">
/// The <see cref="MobileServiceClient"/> associated with this table.
/// </param>
public MobileServiceTable(string tableName, MobileServiceClient client)
: base(tableName, client)
{
this.queryProvider = new MobileServiceTableQueryProvider();
this.SystemProperties = client.Serializer.GetSystemProperties(typeof(T));
Type idType = client.Serializer.GetIdPropertyType <T>(throwIfNotFound: false);
this.hasIntegerId = idType == null || MobileServiceSerializer.IsIntegerId(idType);
}
/// <summary>
/// Undeletes an <paramref name="instance"/> from the table.
/// </summary>
/// <param name="instance">The instance to undelete from the table.</param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>A task that will complete when the undelete finishes.</returns>
public async Task UndeleteAsync(T instance, IDictionary <string, string> parameters)
{
Arguments.IsNotNull(instance, nameof(instance));
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
JObject value = serializer.Serialize(instance) as JObject;
JToken updatedValue = await TransformHttpException(serializer, () => UndeleteAsync(value, parameters, MobileServiceFeatures.TypedTable));
serializer.Deserialize(updatedValue, instance);
}
/// <summary>
/// if id is of type string then it strips the system properties and adds version header.
/// </summary>
/// <returns>The header collection with if-match header.</returns>
private Dictionary <string, string> StripSystemPropertiesAndAddVersionHeader(ref JObject instance, ref IDictionary <string, string> parameters, object id)
{
string version = null;
instance = MobileServiceSerializer.RemoveSystemProperties(instance, out version);
Dictionary <string, string> headers = AddIfMatchHeader(version);
return(headers);
}
/// <summary>
/// Executes a lookup against a table.
/// </summary>
/// <param name="id">
/// The id of the instance to lookup.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <param name="features">
/// Value indicating which features of the SDK are being used in this call. Useful for telemetry.
/// </param>
/// <returns>
/// A task that will return with a result when the lookup finishes.
/// </returns>
internal async Task <JToken> LookupAsync(object id, IDictionary <string, string> parameters, MobileServiceFeatures features)
{
MobileServiceSerializer.EnsureValidId(id);
features = this.AddRequestFeatures(features, parameters);
string uriString = GetUri(this.TableName, id, parameters);
MobileServiceHttpResponse response = await this.MobileServiceClient.HttpClient.RequestAsync(HttpMethod.Get, uriString, this.MobileServiceClient.CurrentUser, null, true, features : this.Features | features);
return(GetJTokenFromResponse(response));
}
/// <summary>
/// Executes a lookup against a table.
/// </summary>
/// <param name="id">
/// The id of the instance to lookup.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will return with a result when the lookup finishes.
/// </returns>
public async Task <JToken> LookupAsync(object id, IDictionary <string, string> parameters)
{
MobileServiceSerializer.EnsureValidId(id);
parameters = AddSystemProperties(this.SystemProperties, parameters);
string uriString = GetUri(this.TableName, id, parameters);
MobileServiceHttpResponse response = await this.MobileServiceClient.HttpClient.RequestAsync(HttpMethod.Get, uriString, this.MobileServiceClient.CurrentUser, null, true);
return(GetJTokenFromResponse(response));
}
/// <summary>
/// Inserts a new instance into the table.
/// </summary>
/// <param name="instance">
/// The instance to insert.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the insertion has finished.
/// </returns>
public async Task InsertAsync(T instance, IDictionary <string, string> parameters)
{
Arguments.IsNotNull(instance, nameof(instance));
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
JObject value = serializer.Serialize(instance) as JObject;
value = MobileServiceSerializer.RemoveSystemProperties(value, out string unused);
JToken insertedValue = await TransformHttpException(serializer, () => InsertAsync(value, parameters, MobileServiceFeatures.TypedTable));
serializer.Deserialize(insertedValue, instance);
}
/// <summary>
/// Undeletes an <paramref name="instance"/> from the table.
/// </summary>
/// <param name="instance">The instance to undelete from the table.</param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>A task that will complete when the undelete finishes.</returns>
public async Task UndeleteAsync(T instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
JObject value = serializer.Serialize(instance) as JObject;
JToken updatedValue = await TransformHttpException(serializer, () => this.UndeleteAsync(value, parameters, MobileServiceFeatures.TypedTable));
serializer.Deserialize <T>(updatedValue, instance);
}
/// <summary>
/// Updates an <paramref name="instance"/> in the table.
/// </summary>
/// <param name="instance">
/// The instance to update in the table.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the update finishes.
/// </returns>
public async Task <JToken> UpdateAsync(JObject instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceInvalidOperationException error = null;
object id = MobileServiceSerializer.GetId(instance);
string version = null;
if (!MobileServiceSerializer.IsIntegerId(id))
{
instance = RemoveSystemProperties(instance, out version);
}
parameters = AddSystemProperties(this.SystemProperties, parameters);
try
{
Dictionary <string, string> headers = null;
string content = instance.ToString(Formatting.None);
string uriString = GetUri(this.TableName, id, parameters);
if (version != null)
{
headers = new Dictionary <string, string>();
headers.Add("If-Match", GetEtagFromValue(version));
}
MobileServiceHttpResponse response = await this.MobileServiceClient.HttpClient.RequestAsync(patchHttpMethod, uriString, this.MobileServiceClient.CurrentUser, content, true, headers);
return(GetJTokenFromResponse(response));
}
catch (MobileServiceInvalidOperationException ex)
{
if (ex.Response != null &&
ex.Response.StatusCode != HttpStatusCode.PreconditionFailed)
{
throw;
}
error = ex;
}
JToken value = await this.ParseContent(error.Response);
throw new MobileServicePreconditionFailedException(error, value);
}
/// <summary>
/// Deletes an instance from the table.
/// </summary>
/// <param name="instance">
/// The instance to delete.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the delete has finished.
/// </returns>
public async Task DeleteAsync(T instance, IDictionary <string, string> parameters)
{
Arguments.IsNotNull(instance, nameof(instance));
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
JObject value = serializer.Serialize(instance) as JObject;
await TransformHttpException(serializer, () => DeleteAsync(value, parameters, MobileServiceFeatures.TypedTable));
// Clear the instance id since it's no longer associated with that
// id on the server (note that reflection is goodly enough to turn
// null into the correct value for us).
serializer.SetIdToDefault(instance);
}
/// <summary>
/// Deletes an <paramref name="instance"/> from the table.
/// </summary>
/// <param name="instance">
/// The instance to delete from the table.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the delete finishes.
/// </returns>
public async Task <JToken> DeleteAsync(JObject instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
object id = MobileServiceSerializer.GetId(instance);
parameters = AddSystemProperties(this.SystemProperties, parameters);
string uriString = GetUri(this.TableName, id, parameters);
MobileServiceHttpResponse response = await this.MobileServiceClient.HttpClient.RequestAsync(HttpMethod.Delete, uriString, this.MobileServiceClient.CurrentUser, null, false);
return(GetJTokenFromResponse(response));
}
public async Task <U> InvokeApiAsync <T, U>(string apiName, T body, HttpMethod method, IDictionary <string, string> parameters, CancellationToken cancellationToken = default)
{
Arguments.IsNotNullOrWhiteSpace(apiName, nameof(apiName));
MobileServiceSerializer serializer = this.Serializer;
string content = null;
if (body != null)
{
content = serializer.Serialize(body).ToString();
}
string response = await this.InternalInvokeApiAsync(apiName, content, method, parameters, MobileServiceFeatures.TypedApiCall, cancellationToken);
if (string.IsNullOrEmpty(response))
{
return(default);
/// <summary>
/// Deletes an instance from the table.
/// </summary>
/// <param name="instance">
/// The instance to delete.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the delete has finished.
/// </returns>
public async Task DeleteAsync(T instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
JObject value = serializer.Serialize(instance) as JObject;
await this.DeleteAsync(value, parameters);
// Clear the instance id since it's no longer associated with that
// id on the server (note that reflection is goodly enough to turn
// null into the correct value for us).
serializer.SetIdToDefault(instance);
}
/// <summary>
/// Inserts a new instance into the table.
/// </summary>
/// <param name="instance">
/// The instance to insert.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the insertion has finished.
/// </returns>
public async Task InsertAsync(T instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
JObject value = serializer.Serialize(instance) as JObject;
string unused;
value = MobileServiceSerializer.RemoveSystemProperties(value, out unused);
JToken insertedValue = await TransformHttpException(serializer, () => this.InsertAsync(value, parameters, MobileServiceFeatures.TypedTable));
serializer.Deserialize <T>(insertedValue, instance);
}
/// <summary>
/// Invokes a user-defined custom API of a Windows Azure Mobile Service using the specified HTTP Method.
/// Additional data can be sent though the HTTP content or the query string.
/// </summary>
/// <typeparam name="T">The type of instance sent to the Windows Azure Mobile Service.</typeparam>
/// <typeparam name="U">The type of instance returned from the Windows Azure Mobile Service.</typeparam>
/// <param name="apiName">The name of the custom API.</param>
/// <param name="body">The value to be sent as the HTTP body.</param>
/// <param name="method">The HTTP method.</param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in the request URI query string.
/// </param>
/// <returns>The response content from the custom api invocation.</returns>
public async Task <U> InvokeApiAsync <T, U>(string apiName, T body, HttpMethod method, IDictionary <string, string> parameters)
{
if (string.IsNullOrWhiteSpace(apiName))
{
throw new ArgumentNullException("apiName");
}
MobileServiceSerializer serializer = this.Serializer;
string content = null;
if (body != null)
{
content = serializer.Serialize(body);
}
string response = await this.InternalInvokeApiAsync(apiName, content, method, parameters);
return(serializer.Deserialize <U>(response));
}
/// <summary>
/// Inserts a new instance into the table.
/// </summary>
/// <param name="instance">
/// The instance to insert.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <returns>
/// A task that will complete when the insertion has finished.
/// </returns>
public async Task InsertAsync(T instance, IDictionary <string, string> parameters)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
JObject value = serializer.Serialize(instance) as JObject;
if (!this.hasIntegerId)
{
string unused;
value = RemoveSystemProperties(value, out unused);
}
JToken insertedValue = await this.InsertAsync(value, parameters);
serializer.Deserialize <T>(insertedValue, instance);
}
/// <summary>
/// Deletes an <paramref name="instance"/> from the table.
/// </summary>
/// <param name="instance">
/// The instance to delete from the table.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <param name="features">
/// Value indicating which features of the SDK are being used in this call. Useful for telemetry.
/// </param>
/// <returns>
/// A task that will complete when the delete finishes.
/// </returns>
internal async Task <JToken> DeleteAsync(JObject instance, IDictionary <string, string> parameters, MobileServiceFeatures features)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
object id = MobileServiceSerializer.GetId(instance);
features = this.AddRequestFeatures(features, parameters);
Dictionary <string, string> headers = StripSystemPropertiesAndAddVersionHeader(ref instance, ref parameters, id);
string uriString = GetUri(this.TableName, id, parameters);
return(await TransformHttpException(async() =>
{
MobileServiceHttpResponse response = await this.MobileServiceClient.HttpClient.RequestAsync(HttpMethod.Delete, uriString, this.MobileServiceClient.CurrentUser, null, false, headers, this.Features | features);
return GetJTokenFromResponse(response);
}));
}
/// <summary>
/// Creates a collection of <see cref="JsonProperty"/> instances for the members of a given
/// type.
/// </summary>
/// <remarks>
/// This method is overridden in order to handle the id property of the type. Because multiple
/// property names ("id" with different casings) are all treated as the id property, we must
/// ensure that there is one and only one id property for the type. Also, the id property
/// should be ignored when it is the default or null value and it should always serialize to JSON
/// with a lowercase 'id' name.
///
/// This method also checks for and applies and system property attributes.
/// </remarks>
/// <param name="type">
/// The type for which to create the collection of <see cref="JsonProperty"/> instances.
/// </param>
/// <param name="memberSerialization">
/// Specifies the member serialization options for the type.
/// </param>
/// <returns>
/// A collection of <see cref="JsonProperty"/> instances for the members of a given
/// type.
/// </returns>
protected override IList <JsonProperty> CreateProperties(Type type, MemberSerialization memberSerialization)
{
IList <JsonProperty> properties = base.CreateProperties(type, memberSerialization);
// If this type is for a known table, ensure that it has an id.
TypeInfo typeInfo = type.GetTypeInfo();
if (this.tableNameCache.ContainsKey(type) || this.tableNameCache.Keys.Any(t => t.GetTypeInfo().IsAssignableFrom(typeInfo)))
{
// Filter out properties that are not read/write
properties = properties.Where(p => p.Writable).ToList();
// Find the id property
JsonProperty idProperty = DetermineIdProperty(type, properties);
bool isIntegerIdType = MobileServiceSerializer.IsIntegerId(idProperty);
// Create a reverse cache of property to memberInfo to be used locally for validating the type
Dictionary <JsonProperty, MemberInfo> memberInfoCache = new Dictionary <JsonProperty, MemberInfo>();
foreach (KeyValuePair <MemberInfo, JsonProperty> pair in jsonPropertyCache)
{
if (pair.Key.DeclaringType.GetTypeInfo().IsAssignableFrom(typeInfo))
{
memberInfoCache.Add(pair.Value, pair.Key);
}
}
// Set any needed converters and look for system property attributes
foreach (JsonProperty property in properties)
{
SetMemberConverters(property);
ApplySystemPropertyAttributes(property, memberInfoCache[property], isIntegerIdType);
}
// Determine the system properties from the property names
// and add the system properties to the cache
if (!isIntegerIdType)
{
AddSystemPropertyCacheEntry(type, properties);
}
}
return(properties);
}
/// <summary>
/// Updates an <paramref name="instance"/> in the table.
/// </summary>
/// <param name="instance">
/// The instance to update in the table.
/// </param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in
/// the request URI query string.
/// </param>
/// <param name="features">
/// Value indicating which features of the SDK are being used in this call. Useful for telemetry.
/// </param>
/// <returns>
/// A task that will complete when the update finishes.
/// </returns>
internal async Task <JToken> UpdateAsync(JObject instance, IDictionary <string, string> parameters, MobileServiceFeatures features)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
features = this.AddRequestFeatures(features, parameters);
object id = MobileServiceSerializer.GetId(instance);
Dictionary <string, string> headers = StripSystemPropertiesAndAddVersionHeader(ref instance, ref parameters, id);
string content = instance.ToString(Formatting.None);
string uriString = GetUri(this.TableName, id, parameters);
return(await this.TransformHttpException(async() =>
{
MobileServiceHttpResponse response = await this.MobileServiceClient.HttpClient.RequestAsync(patchHttpMethod, uriString, this.MobileServiceClient.CurrentUser, content, true, headers, this.Features | features);
var result = GetJTokenFromResponse(response);
return RemoveUnrequestedSystemProperties(result, parameters, response.Etag);
}));
}
/// <summary>
/// Returns the id of the <paramref name="instance"/>.
/// </summary>
/// <param name="instance">
/// The instance that should have an id.
/// </param>
/// <returns>
/// The id of the instance.
/// </returns>
/// <exception cref="ArgumentException">
/// Thrown if the <paramref name="instance"/> does not have an id.
/// </exception>
private object GetIdFromInstance(JObject instance)
{
Debug.Assert(instance != null);
// Get the value of the object (as a primitive JSON type)
MobileServiceSerializer serializer = this.MobileServiceClient.Serializer;
object id = serializer.GetId(instance);
if (serializer.IsDefaultId(id))
{
throw new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
Resources.MobileServiceTable_IdNotFound,
MobileServiceUrlBuilder.IdPropertyName),
"instance");
}
return(id);
}
/// <summary>
/// Invokes a user-defined custom API of a Microsoft Azure Mobile Service using the specified HTTP Method.
/// Additional data can be sent though the HTTP content or the query string.
/// </summary>
/// <typeparam name="T">The type of instance sent to the Microsoft Azure Mobile Service.</typeparam>
/// <typeparam name="U">The type of instance returned from the Microsoft Azure Mobile Service.</typeparam>
/// <param name="apiName">The name of the custom API.</param>
/// <param name="body">The value to be sent as the HTTP body.</param>
/// <param name="method">The HTTP method.</param>
/// <param name="parameters">
/// A dictionary of user-defined parameters and values to include in the request URI query string.
/// </param>
/// <returns>The response content from the custom api invocation.</returns>
public async Task <U> InvokeApiAsync <T, U>(string apiName, T body, HttpMethod method, IDictionary <string, string> parameters)
{
if (string.IsNullOrWhiteSpace(apiName))
{
throw new ArgumentNullException("apiName");
}
MobileServiceSerializer serializer = this.Serializer;
string content = null;
if (body != null)
{
content = serializer.Serialize(body).ToString();
}
string response = await this.InternalInvokeApiAsync(apiName, content, method, parameters, MobileServiceFeatures.TypedApiCall);
if (string.IsNullOrEmpty(response))
{
return(default(U));
}
return(serializer.Deserialize <U>(JToken.Parse(response)));
}
