C# OneDrive Connector In this article you will learn how to integrate OneDrive data to C# (live / bi-directional connection to OneDrive). OneDrive Connector can be used to integrate OneDrive and your defined data source, e.g. Microsoft SQL, Oracle, Excel, Power BI, etc. Get, write, delete OneDrive data in a few clicks!. Using OneDrive Connector you will be able to connect, read, and write data from within C#. Follow the steps below to see how we would accomplish that. Download  Help File  Buy  Driver mentioned in this article is part of ODBC PowerPack which is a collection of high-performance Drivers for various API data source (i.e. REST API, JSON, XML, CSV, Amazon S3 and many more). Using familiar SQL query language you can make live connections and read/write data from API sources or JSON / XML / CSV Files inside SQL Server (T-SQL) or your favorite Reporting (i.e. Power BI, Tableau, Qlik, SSRS, MicroStrategy, Excel, MS Access), ETL Tools (i.e. Informatica, Talend, Pentaho, SSIS). You can also call our drivers from programming languages such as JAVA, C#, Python, PowerShell etc. If you are new to ODBC and ZappySys ODBC PowerPack then check the following links to get started. ODBC PowerPack - System Requirements and Installation Getting Started - Using ODBC PowerPack ODBC API Driver Help File

See also Connect OneDrive in SSIS Connect OneDrive in SQL Server Connect OneDrive in Power BI Connect OneDrive in SSRS Connect OneDrive in Informatica Connect OneDrive in MS Access Connect OneDrive in MS Excel Connect OneDrive in SSAS Connect OneDrive in Python Connect OneDrive in JAVA Connect OneDrive in Tableau Connect OneDrive in SAP Crystal Reports Connect OneDrive in Azure Data Factory (ADF) Connect OneDrive in ODBC

Create ODBC Data Source (DSN) based on ZappySys API Driver

To get data from OneDrive using C# we first need to create a DSN (Data Source) which will access data from OneDrive. We will later be able to read data using C#. Perform these steps:

1. Install ZappySys ODBC PowerPack.

2. Open ODBC Data Sources (x64):
   

3. Create a User Data Source (User DSN) based on ZappySys API Driver

   ZappySys API Driver

   
   You should create a System DSN (instead of a User DSN) if the client application is launched under a Windows System Account, e.g. as a Windows Service. If the client application is 32-bit (x86) running with a System DSN, use ODBC Data Sources (32-bit) instead of the 64-bit version.

4. When the Configuration window appears give your data source a name if you haven't done that already, then select "OneDrive" from the list of Popular Connectors. If "OneDrive" is not present in the list, then click "Search Online" and download it. Then set the path to the location where you downloaded it. Finally, click Continue >> to proceed with configuring the DSN:

   OneDriveDSN

   OneDrive

   

5. Now it's time to configure the Connection Manager. Select Authentication Type, e.g. Token Authentication. Then select API Base URL (in most cases, the default one is the right one). More info is available in the Authentication section.

    User Credentials [OAuth]

   OAuth App must be created in Microsoft Azure AD. These settings typically found here https://docs.microsoft.com/en-us/graph/auth-register-app-v2. [Read more..]

   Steps to get OneDrive Credentials
   

   Firstly, login into Azure Portal and there create an OAuth application:

   1. Go to Azure Portal and login there.
   2. Then go to Azure Active Directory.
   3. On the left side click menu item App registrations
   4. Then proceed with clicking New registration.
   5. Enter a name for your application.
   6. Select one of Accounts in this organizational directory only as supported account type to access data in your company.
   7. In Redirect URI section leave option selected at Web.
   8. In nearby textbox enter https://login.microsoftonline.com/common/oauth2/nativeclient as Redirect URI or any other valid redirect URL, e.g. https://zappysys.com/oauth
   9. Use this Redirect URI in Redirect URL grid row.
   10. Copy Application (client) ID and paste it into API Connection Manager configuration grid in Client ID row.
   11. Then click on Endpoints link and copy first URL to Authorization URL and second one to Token URL in configuration grid. Usually they look similar to these:
       • https://login.microsoftonline.com/daed1250-xxxx-xxxx-xxxx-ef0a982d3d1e/oauth2/v2.0/authorize
       • https://login.microsoftonline.com/daed1250-xxxx-xxxx-xxxx-ef0a982d3d1e/oauth2/v2.0/token
       • https://login.microsoftonline.com/common/oauth2/v2.0/authorize
       • https://login.microsoftonline.com/common/oauth2/v2.0/token
   12. Close "Endpoints" and create a Client Secret by clicking Certificates & secrets.
   13. Proceed by clicking New client secret and setting expiration period. Copy the client secret and paste it into configuration grid in Client Secret row.
   14. Use these scopes in Scopes field: offline_access Files.Read Files.Read.All Files.ReadWrite Files.ReadWrite.All openid profile User.Read email
   15. Click Generate Token to generate tokens.
   16. That's it!

   Fill in all required parameters and set optional parameters if needed:

   OneDriveDSN

   OneDrive

   User Credentials [OAuth]

   https://graph.microsoft.com/v1.0

   Required Parameters
   Authorization URL	Fill in the parameter...
   Token URL	Fill in the parameter...
   Client ID	Fill in the parameter...
   Scope	Fill in the parameter...
   Optional Parameters
   Client Secret	Fill in the parameter...
   Refresh Token File Path	Fill in the parameter...
   ReturnUrl	Fill in the parameter...
   RetryMode	Fill in the parameter...
   RetryStatusCodeList	Fill in the parameter...
   RetryCountMax	Fill in the parameter...
   RetryMultiplyWaitTime	Fill in the parameter...
   Login Prompt Option	Fill in the parameter...

   

    Application Credentials [OAuth]

   OAuth App must be created in Microsoft Azure AD. These settings typically found here https://docs.microsoft.com/en-us/graph/auth-v2-service [Read more..]

   Steps to get OneDrive Credentials
   

   Firstly, login into Azure Portal and there create an OAuth application:

   1. Go to Azure Portal and login there.
   2. Then go to Azure Active Directory.
   3. On the left side click menu item App registrations
   4. Then proceed with clicking New registration.
   5. Enter a name for your application.
   6. Select one of Accounts in this organizational directory only as supported account type to access data in your company.
   7. In Redirect URI section leave option selected at Web.
   8. Copy Application (client) ID and paste it into API Connection Manager configuration grid in Client ID row.
   9. Then click on Endpoints link and copy second, Token, URL to Token URL field in configuration grid. Usually they look similar to these:
      • https://login.microsoftonline.com/daed1250-xxxx-xxxx-xxxx-ef0a982d3d1e/oauth2/v2.0/token
      • https://login.microsoftonline.com/common/oauth2/v2.0/token
   10. Close "Endpoints" and create a Client Secret by clicking Certificates & secrets.
   11. Proceed by clicking New client secret and setting expiration period. Copy the client secret and paste it into configuration grid in Client Secret row.
   12. Go to API Permissions section and add Microsoft Graph permissions. Then and add Drive permissions, e.g. Files.Read.All, Files.ReadWrite.All.
   13. Use these scopes in Scopes field: offline_access Files.Read Files.Read.All Files.ReadWrite Files.ReadWrite.All openid profile User.Read email
   14. Finally, Grant admin consent for your domain for your permissions.
   15. That's it!

   Fill in all required parameters and set optional parameters if needed:

   OneDriveDSN

   OneDrive

   Application Credentials [OAuth]

   https://graph.microsoft.com/v1.0

   Required Parameters
   Token URL	Fill in the parameter...
   Client ID	Fill in the parameter...
   Client Secret	Fill in the parameter...
   Optional Parameters
   Scope	Fill in the parameter...
   RetryMode	Fill in the parameter...
   RetryStatusCodeList	Fill in the parameter...
   RetryCountMax	Fill in the parameter...
   RetryMultiplyWaitTime	Fill in the parameter...

   

6. Once the data source has been configured, you can preview data. Select the Preview tab and use settings similar to the following to preview data:
   

7. Click OK to finish creating the data source.

Read data in C# from the DSN

1. Create a new Console project and use this code to read the data:
   

   "OneDriveDSN";

   

2. Press F5 to run the code and read the data:
   

3. Here is the code in text format:

   
   using System;
   using System.Data.Odbc;
   
   namespace ConsoleApp {
       class Program {
           static void Main() {
               var dsn = "OneDriveDSN";
               using (var conn = new OdbcConnection(String.Format("DSN={0}", dsn)))
               {
                   conn.Open();
                   var cmd = new OdbcCommand("SELECT * FROM Products", conn);
                   var rdr = cmd.ExecuteReader();
                   while (rdr.Read())
                   {
                       for (int i = 0; i < rdr.FieldCount; i++)
                       {
                               Console.Write("{0}\t", rdr[i]);
                       }
                       Console.WriteLine();
                   }
               }
               Console.ReadKey();
           }
       }
   }
   

4. If you want to avoid being dependent on a DSN and creating multiple DSNs for each platform (x86, x64), then you can use a fully qualified connection string. Simply go to your DSN and copy the Connection String . Then in your C# code, pass the connection string as an argument when calling the OdbcConnection object's constructor, for example:

       
   var connectionString = "DRIVER={ZappySys API Driver};ServiceUrl=https://services.odata.org/V3/Northwind/Northwind.svc;Provider=OData;AuthName=Http;";
   
   using (var conn = new OdbcConnection(connectionString))
   {
       // ...
   }
   

   How to Overcome the Long Connection String Issue

   This issue is typically caused when the connection string includes a long RefreshToken attribute (i.e. RefreshToken=xxxxxxxxxxxx...xxx, especially if it's more than 1,000 characters).

   A good solution is to supply the RefreshToken by a file. Simply copy and paste the RefreshToken into a text file and save it, and then pass that file path in the connection string instead of directly supplying the RefreshToken.

   Here is an example of a connection string that can cause the issue:

   
   var connectionString = "Driver={ZappySys API Driver};RefreshToken=xxxxxxxxxxxx...xxxxxxx;ServiceUrl=...;";
   
   using (var conn = new OdbcConnection(connectionString))
   {
       // ...
   }
   

   Here is an example of a connection string that has resolved the issue by moving the RefreshToken attribute to the file c:\my_refresh_token.txt:

   
   var connectionString = "Driver={ZappySys API Driver};RefreshTokenFile=c:\my_refresh_token.txt;ServiceUrl=...;";
   
   using (connectionString)
   {
       // ...
   }
   

Create Custom Store Procedure in ZappySys Driver

You can create procedures to encapsulate custom logic and then only pass handful parameters rather than long SQL to execute your API call.

Steps to create Custom Store Procedure in ZappySys Driver. You can insert Placeholders anywhere inside Procedure Body. Read more about placeholders here

1. Go to Custom Objects Tab and Click on Add button and Select Add Procedure:
   

2. Enter the desired Procedure name and click on OK:
   

3. Select the created Store Procedure and write the your desired store procedure and Save it and it will create the custom store procedure in the ZappySys Driver:
   Here is an example stored procedure for ZappySys Driver. You can insert Placeholders anywhere inside Procedure Body. Read more about placeholders here
   

   CREATE PROCEDURE [usp_get_orders]
       @fromdate = '<<yyyy-MM-dd,FUN_TODAY>>'
    AS
       SELECT * FROM Orders where OrderDate >= '<@fromdate>';
   

   
   

4. That's it now go to Preview Tab and Execute your Store Procedure using Exec Command. In this example it will extract the orders from the date 1996-01-01:
   

   Exec usp_get_orders '1996-01-01';

   
   

Create Custom Virtual Table in ZappySys Driver

ZappySys API Drivers support flexible Query language so you can override Default Properties you configured on Data Source such as URL, Body. This way you don't have to create multiple Data Sources if you like to read data from multiple EndPoints. However not every application support supplying custom SQL to driver so you can only select Table from list returned from driver.

Many applications like MS Access, Informatica Designer wont give you option to specify custom SQL when you import Objects. In such case Virtual Table is very useful. You can create many Virtual Tables on the same Data Source (e.g. If you have 50 URLs with slight variations you can create virtual tables with just URL as Parameter setting.

1. Go to Custom Objects Tab and Click on Add button and Select Add Table:
   

2. Enter the desired Table name and click on OK:
   

3. And it will open the New Query Window Click on Cancel to close that window and go to Custom Objects Tab.

4. Select the created table, Select Text Type AS SQL and write the your desired SQL Query and Save it and it will create the custom table in the ZappySys Driver:
   Here is an example SQL query for ZappySys Driver. You can insert Placeholders also. Read more about placeholders here
   

   SELECT
     "ShipCountry",
     "OrderID",
     "CustomerID",
     "EmployeeID",
     "OrderDate",
     "RequiredDate",
     "ShippedDate",
     "ShipVia",
     "Freight",
     "ShipName",
     "ShipAddress",
     "ShipCity",
     "ShipRegion",
     "ShipPostalCode"
   FROM "Orders"
   Where "ShipCountry"='USA'

   
   

5. That's it now go to Preview Tab and Execute your custom virtual table query. In this example it will extract the orders for the USA Shipping Country only:
   

   SELECT * FROM "vt__usa_orders_only"

   
   

Conclusion

In this article we discussed how to connect to OneDrive in C# and integrate data without any coding. Click here to Download OneDrive Connector for C# and try yourself see how easy it is. If you still have any question(s) then ask here or simply click on live chat icon below and ask our expert (see bottom-right corner of this page).

Download OneDrive Connector for C# Documentation 

Actions supported by OneDrive Connector

OneDrive Connector support following actions for REST API integration. If some actions are not listed below then you can easily edit Connector file and enhance out of the box functionality.

Other App Integration scenarios for OneDrive

Other Connectors for C#

Download OneDrive Connector for C# Documentation 

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