User Guide: SDKs > .NET (Visual Studio) SDK > Invoking an Object Service > ObjectService Class

ObjectService Class

The ObjectService class provides methods that act on the Volt MX Foundry endpoint, including basic CRUD and metadata functions .

Methods

The following methods are used by the ObjectService class.

Create Method

Creates an object in the Volt MX Foundry endpoint.

Syntax

 Create(dataObject, headers, queryParams);

Parameters

Parameter	Type	Description
dataObject	DataObject	An instance of the DataObject class which contains data about the object and its data.
headers	Dictionary	Key/value pairs of httpHeaders that are sent along with the network call.
queryParams	Dictionary	Key/value pairs of query params that are appended to the url while making a network call.

Example

public void CreateObject() {
    VoltMX.SDK sdkObject = new VoltMX.SDK();
    try {
        sdkObject.Init("<app_key>", "<app_secret>", "<service_url>");
        VoltMX.ObjectService objectsvc = sdkObject.GetObjectService("<service_name>");
        VoltMX.DataObject dataObject = new VoltMX.DataObject("<object_name>");
        dataObject.AddField("field1", "value1");
        JObject result = objectsvc.Create(dataObject);
    } catch (Exception e) {
        sdkObject.Log("Create Object Failed");
    }
}

DeleteRecord Method

Deletes an object in the Volt MX Foundry endpoint.

Syntax

 DeleteRecord(dataobject, headers, queryParams);

Parameters

Parameter	Type	Description
dataObject	DataObject	An instance of the DataObject class which contains data about the object and its data.
headers (Optional)	Dictionary	Key/value pairs of httpHeaders that are sent along with the network call.
queryParams (Optional)	Dictionary	Key/value pairs of query params that are appended to the url while making a network call.

Example

 public void DeleteObject() {
    VoltMX.SDK sdkObject = new VoltMX.SDK();
    try {
        sdkObject.Init("<app_key>", "<app_secret>", "<service_url>");
        VoltMX.ObjectService objectsvc = sdkObject.ObjectServices("<service_name>");
        VoltMX.DataObject dataObject = new VoltMX.DataObject("<object_name>");
        //Primary Key is Required to perform the DeleteRecord operation.
        dataObject.DeleteRecord("Primary_Key", "value");
        JObject result = objectsvc.DeleteRecord(dataObject);
    } catch (Exception e) {
        sdkObject.Log("Delete Object Failed");
    }
}

GetMetadataOfAllObjects Method

Gets the metadata associated with the objects defined in the service from the server or local store.

Syntax

 GetMetadataOfAllObjects(headers, queryParams);

Parameters

Parameter	Type	Description
headers	Dictionary	Key/value pairs of httpHeaders that are sent along with the network call.
queryParams	Dictionary	Key/value pairs of query params that are appended to the url while making a network call. To query data, the Odata Url is sent in this parameter.

Example

 public void GetMetadataForAllObjects() {
    VoltMX.SDK sdkObject = new VoltMX.SDK();
    try {
        sdkObject.Init("<app_key>", "<app_secret>", "<service_url>");
        VoltMX.ObjectService objectsvc = sdkObject.ObjectServices("<service_name>");
        VoltMX.Metadata objectsMetadata = null;
        objectsMetadata = objectsvc.GetMetadataOfAllObjects();
    } catch (Exception e) {
        sdkObject.Log("Get Metadata Of All Objects Failed");
    }
}

GetMetadataOfObject Method

Gets the metadata associated with an object defined in the service from the server or local store.

Syntax

 GetMetadataOfObject(objectName, headers, queryParams);

Parameters

Parameter	Type	Description
objectName	string	Object name in Volt MX Foundry
headers	Dictionary	Key/value pairs of httpHeaders that are sent along with the network call.
queryParams	Dictionary	Key/value pairs of query params that are appended to the url while making a network call.

Example

 public void GetMetadataForObject() {
    VoltMX.SDK sdkObject = new VoltMX.SDK();
    try {
        sdkObject.Init("<app_key>", "<app_secret>", "<service_url>");
        VoltMX.ObjectService objectsvc = sdkObject.ObjectServices("<service_name>");
        VoltMX.Metadata objectsMetadata = null;
        objectsMetadata = objectsvc.GetMetadataOfObject("<object_Name>");
    } catch (Exception e) {
        sdkObject.Log("Get Metadata Of Object Failed");
    }
}

PartialUpdate Method

Partially updates an object in the Volt MX Foundry endpoint.

Syntax

 PartialUpdate(dataObject);

Parameters

Parameter	Type	Description
dataObject	DataObject	An instance of the DataObject class which contains data about the object and its data.
headers	Dictionary	Key/value pairs of httpHeaders that are sent along with the network call.
queryParams	Dictionary	Key/value pairs of query params that are appended to the url while making a network call.

Example

 public void PartialUpdateSampleObject() {
    VoltMX.SDK sdkObject = new VoltMX.SDK();
    try {
        sdkObject.Init("<app_key>", "<app_secret>", "<service_url>");
        VoltMX.ObjectService objectsvc = sdkObject.ObjectServices.<service_name>;
        VoltMX.DataObject dataObject = new VoltMX.DataObject("<object_name>");
        dataObject.AddField("Updatedfield1", "Updatedvalue1");
        //Primary Key is required to perform the update operation.
        dataObject.AddField("Primary_Key", "value");
        JObject result = objectsvc.PartialUpdate(dataObject);
    } catch (Exception e) {
        sdkObject.Log("Update Object Failed");
    }
}       

Update Method

Updates an object in the Volt MX Foundry endpoint.

Syntax

 Update(dataobject, headers, queryParams);

Parameters

Parameter	Type	Description
dataObject	DataObject	An instance of the DataObject class which contains data about the object and its data.
headers	Dictionary	Key/value pairs of httpHeaders that are sent along with the network call.
queryParams	Dictionary	Key/value pairs of query params that are appended to the url while making a network call.

Example

 public void UpdateSampleObject() {
    VoltMX.SDK sdkObject = new VoltMX.SDK();
    try {
        sdkObject.Init("<app_key>", "<app_secret>", "<service_url>");
        VoltMX.ObjectService objectsvc = sdkObject.ObjectServices("<service_name>");
        VoltMX.DataObject dataObject = new VoltMX.DataObject("<object_name>");
        dataObject.AddField("Updatedfield1", "Updatedvalue1");
        //Primary Key is required to perform the update operation.
        dataObject.AddField("Primary_Key", "value");
        JObject result = objectsvc.Update(dataObject);
    } catch (Exception e) {
        sdkObject.Log("Update Object Failed");
    }
}