# Configure OneDrive Web API Service

## Content



To configure OneDrive Web API Service and perform different operations, follow these steps:

1.  [Configure Storage Connection String](/componentone/docs/webapi/online-webapicore/Services/cloud-services/configureonedriveservice#step-1-configure-storage-connection-string)
2.  [Register the Cloud Service](/componentone/docs/webapi/online-webapicore/Services/cloud-services/configureonedriveservice#step-2-register-the-cloud-service)
3.  [Perform Operations](/componentone/docs/webapi/online-webapicore/Services/cloud-services/configureonedriveservice#step-3-perform-operations)

### Step 1: Configure Storage Connection String

2.  Register your app on OneDrive. For registering app, see [Register your app](https://docs.microsoft.com/en-us/onedrive/developer/rest-api/getting-started/msa-oauth?view=odsp-graph-online#register-your-app).
3.  Generate an access token. For detailed information on how to obtain access token, see [Supported Authentication flows](https://docs.microsoft.com/en-us/onedrive/developer/rest-api/getting-started/msa-oauth?view=odsp-graph-online#supported-authentication-flows).

### Step 2: Register the Cloud Service

1.  Create a new C1 Web API Application and make sure the following references are added to the application:
    *   C1.AspNetCore.Api.dll
    *   C1.AspNetCore.Api.Cloud.dll
    *   OneDrive.Api
2.  Register the OneDrive cloud service using the following code:
    
    ```CODE
    app.UseStorageProviders().AddOneDriveStorage("OneDrive", “your one drive AccessToken”);
    ```

### Step 3: Perform Operations

You can choose to perform various operations, such as listing data, uploading, deleting or downloading a file, after registering the cloud service. To understand how to perform these operations, see [Perform Operations](/componentone/docs/webapi/online-webapicore/Services/cloud-services/performoperations).