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LINQ to Twitter Data
LINQ offers versatile querying capabilities within the .NET Framework (v3.0+), offering a straightforward method for programmatic data access through CData ADO.NET Data Providers. In this article, we demonstrate the use of LINQ to retrieve information from the Twitter Data Provider.
This article illustrates using LINQ to access tables within the Twitter via the CData ADO.NET Data Provider for Twitter. To achieve this, we will use LINQ to Entity Framework, which facilitates the generation of connections and can be seamlessly employed with any CData ADO.NET Data Providers to access data through LINQ.
See the help documentation for a guide to setting up an EF 6 project to use the provider.
- In a new project in Visual Studio, right-click on the project and choose to add a new item. Add an ADO.NET Entity Data Model.
- Choose EF Designer from Database and click Next.
- Add a new Data Connection, and change your data source type to "CData Twitter Data Source".
Enter your data source connection information.
All tables require authentication. You can connect using your User and Password or OAuth. To authenticate using OAuth, you can use the embedded OAuthClientId, OAuthClientSecret, and CallbackURL or you can register an app to obtain your own.
If you intend to communicate with Twitter only as the currently authenticated user, then you can obtain the OAuthAccessToken and OAuthAccessTokenSecret directly by registering an app.
See the Getting Started chapter in the help documentation for a guide to using OAuth.
- If saving your entity connection to App.Config, set an entity name. In this example we are setting TwitterEntities as our entity connection in App.Config.
- Enter a model name and select any tables or views you would like to include in the model.
Using the entity you created, you can now perform select , update, delete, and insert commands. For example:
TwitterEntities context = new TwitterEntities();
var tweetsQuery = from tweets in context.Tweets
select tweets;
foreach (var result in tweetsQuery) {
Console.WriteLine("{0} {1} ", result.Id, result.From_User_Name);
}
See "LINQ and Entity Framework" chapter in the help documentation for example queries of the supported LINQ.
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Twitter ADO.NET Provider
A straightforward interface to connect any .NET application with Twitter integration capabilities including Search, GeoSearch, UserInfo, DirectMessages, Followers, and more!
