How to connect asp net web api for sql server database on somee com


ASP.NET is a popular programming language used for web applications. One common requirement in web development is to connect an ASP.NET web API to a SQL Server database. In this article, we will explore how to achieve this connection the ASP.NET programming language.

Step 1: Setting up the SQL Server Database

Before we can connect our ASP.NET web API to a SQL Server database, we need to set up the database itself. This involves creating the necessary tables and the database connection .

Let's assume we have a SQL Server database hosted on We will need to obtain the connection for our database. The connection string contains information such as the server name, database name, and authentication details.

Step 2: Creating the ASP.NET Web API Project

Once we have our SQL Server database set up, we can proceed to create our ASP.NET web API project. Open Visual Studio and create a new ASP.NET Web Application project. Choose the Web API template and give your project a name.

Next, we need to install the necessary NuGet packages to enable database connectivity. Open the NuGet Package Manager Console and run the following command:

Install-Package System.Data.

Step 3: Configuring the Database Connection

Now that we have our project set up, we need to configure the database connection. Open the Web.config file in your project and locate the section. Add a new connection string element with the necessary details:


Replace server_name, database_name, username, and password with the appropriate values for your SQL Server database.

Step 4: Writing the API Controller

With the database connection configured, we can now write the API controller that will handle the database operations. Create a new controller class and the necessary methods for retrieving, inserting, updating, and deleting data from the database.

Here's an example of a simple API controller that retrieves data from a table called “Customers”:

Make sure to replace Customers with the appropriate table name and with the corresponding model class.

Step 5: Testing the API

Now that our API controller is ready, we can test it by the project and making HTTP requests to the API . Use a tool like Postman to send GET requests to the API endpoint for retrieving customers.

For example, if your API is running on http://localhost:5000, you can send a GET request to http://localhost:5000/api/customers to retrieve the list of customers.


In this article, we have explored how to connect an ASP.NET web API to a SQL Server database. We have covered the steps involved in setting up the database, creating the ASP.NET web API project, configuring the database connection, writing the API controller, and testing the API. By following these steps, you should be able to successfully connect your ASP.NET web API to a SQL Server database and perform database operations.

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