C# OneDrive API Connector
In this article you will learn, how to integrate 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 connection 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 with ODBC and ZappySys ODBC PowerPack then check below links to get started. |
See also
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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, which later will be able to get using C#. Perform these steps:
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Install ZappySys ODBC PowerPack.
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Open ODBC Data Sources (x64):
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Create a User Data Source (User DSN) based on ZappySys API Driver:
You should create System DSN if client application is launched under Windows System Account, e.g. as a Windows Service.
Launch ODBC Data Sources 32-bit version in case your client application is a 32-bit (x86) application (required only for System DSN). -
When a window appears, firstly 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 one where you downloaded it. Finally, hit Continue >> button to continue configuring DSN:
OneDriveDSNOneDrive -
Another window appears and it's time to configure the Connection Manager. Firstly, select Authentication Type, e.g. Token Authentication. Then select API Base URL (in most cases default one is the right one). More info is available in Authentication section.
Steps to get OneDrive Credentials
Firstly, login into Azure Portal and there create an OAuth application:
- Go to Azure Portal and login there.
- Then go to Azure Active Directory.
- On the left side click menu item App registrations
- Then proceed with clicking New registration.
- Enter a name for your application.
- Select one of Accounts in this organizational directory only as supported account type to access data in your company.
- In Redirect URI section leave option selected at Web.
- 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
- Use this Redirect URI in Redirect URL grid row.
- Copy Application (client) ID and paste it into API Connection Manager configuration grid in Client ID row.
- 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
- Close "Endpoints" and create a Client Secret by clicking Certificates & secrets.
- Proceed by clicking New client secret and setting expiration period. Copy the client secret and paste it into configuration grid in Client Secret row.
- Use these scopes in Scopes field: offline_access Files.Read Files.Read.All Files.ReadWrite Files.ReadWrite.All openid profile User.Read email
- Click Generate Token to generate tokens.
- That's it!
And finally, fill in all the required parameters and set optional parameters if needed.:
OneDriveDSNUser Credentials [OAuth]https://graph.microsoft.com/v1.0Required 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... -
Once you configured a data source, you can preview data. Hit Preview tab, and use similar settings to preview data:
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Click OK to finish creating the data source
Read data in C# from the DSN
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Create a fresh new Console project and use this code to get the data:
"OneDriveDSN" -
Hit F5 to run the code and read the data:
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Here is program's 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(); } } }
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If you want to avoid to be dependent on a DSN name 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 use Connection String when initializing OdbcConnection object, for example:
using (var conn = new OdbcConnection("DRIVER={ZappySys API Driver};ServiceUrl=https://services.odata.org/V3/Northwind/Northwind.svc;Provider=OData;AuthName=Http;")) { // ... }
How to overcome long ConnectionString Issue?
If you copy ConnectionString from UI and if you have long RefreshToken=xxxxxxxxxxxxxxxxxx...xxx, very long more than 1000 chars. It can cause the issue.
To overcome from a such issue you can supply RefreshToken via file actually. You just need to cut the RefreshToken and paste it in some text file and save it and pass that file path instead of the RefreshToken.
using (var conn = new OdbcConnection("Driver={ZappySys API Driver};RefreshToken=xxxxxx...xxx;ServiceUrl=xxx...;")) { // ... }
You can use that file path in the ConnectionString, remove the RefreshToken=xxxxxx...xxx; attribute from the ConnectionString and you can pass RefreshTokenFile=c:\my_refresh_token.txt;
using (var conn = new OdbcConnection("Driver={ZappySys API Driver};RefreshTokenFile={{YourRefreshTokenFilePath}};ServiceUrl=...;")) { // ... }
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
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Go to Custom Objects Tab and Click on Add button and Select Add Procedure:
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Enter the desired Procedure name and click on OK:
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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>';
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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.
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Go to Custom Objects Tab and Click on Add button and Select Add Table:
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Enter the desired Table name and click on OK:
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And it will open the New Query Window Click on Cancel to close that window and go to Custom Objects Tab.
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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'
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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).Actions supported by OneDrive Connector
OneDrive Connectors 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.Parameter | Description |
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DriveId |
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Parameter | Description |
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DriveId |
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Parameter | Description |
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DriveId |
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FolderId |
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Parameter | Description |
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DriveId |
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Parameter | Description |
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DriveId |
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FileId |
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Parameter | Description |
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DriveId |
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FileId |
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SheetId |
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Range |
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Parameter | Description |
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DriveId |
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FileId |
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Parameter | Description |
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DriveId |
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SourceFilePath |
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TargetFilePath |
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Parameter | Description |
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DriveId |
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ItemId |
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Parameter | Description |
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Url |
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Body |
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IsMultiPart |
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Filter |
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Headers |
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