---
title: "How to configure connection string in .net core 6."  
description: "How to configure connection string in .net core 6."  
author: "Sandra Emily"  
published: 2023-11-07  
updated: 2023-11-08  
canonical: https://www.mindstick.com/forum/160447/how-to-configure-connection-string-in-dot-net-core-6  
category: ".net core"  
tags: ["asp.net core", ".net core", ".net core 6"]  
reading_time: 2 minutes  

---

# How to configure connection string in .net core 6.

How to [configure](https://www.mindstick.com/blog/242/how-to-configuring-sql-server-memory-settings) [connection string](https://www.mindstick.com/articles/328/connection-strings) in .net core 6.

## Replies

### Reply by Aryan Kumar

In .NET Core 6, you can configure [connection](https://www.mindstick.com/articles/13012/what-makes-ethernet-connection-better-than-wifi) strings in your ASP.NET Core application using the **appsettings.json** file and the **IConfiguration** service. Here's how to configure a connection [string](https://www.mindstick.com/articles/1527/string-split-in-c-sharp):

**Create an appsettings.json File**:

If you don't already have one, create an **appsettings.json** file in your project's root directory. This file will store your connection string and other configuration settings.

Here's an example of what your **appsettings.json** file might look like:

```plaintext
{
  "ConnectionStrings": {
    "DefaultConnection": "YourConnectionStringHere"
  },
  "OtherSettings": {
    "SomeSetting": "SomeValue"
  }
}
```

Replace **"YourConnectionStringHere"** with your actual database connection string.

**Load Configuration in Startup.cs**:

In your **Startup.cs** file, you need to load the configuration from the **appsettings.json** file. This is typically done in the **ConfigureServices** method.

```plaintext
using Microsoft.Extensions.Configuration;

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    public void ConfigureServices(IServiceCollection services)
    {
        // Load
```

**Use the Connection String**:

You can now use the **connectionString** variable in your **Startup.cs** or any other services or controllers where you need it. For example, you can configure a database context:

```plaintext
public void ConfigureServices(IServiceCollection services)
{
    string connectionString = Configuration.GetConnectionString("DefaultConnection");

    services.AddDbContext<MyDbContext>(options =>
        options.UseSqlServer(connectionString));

    // Other services configuration
}
```

**Specify Environment-Specific Connection Strings** (Optional):

You can also specify environment-specific connection strings in your **appsettings.json** file. For example, you can have separate connection strings for development and production environments:

```plaintext
{
  "ConnectionStrings": {
    "DefaultConnection": "YourConnectionStringHere",
    "ProductionConnection": "YourProductionConnectionStringHere"
  },
  "OtherSettings": {
    "SomeSetting": "SomeValue"
  }
}
```

To use environment-specific connection strings, you can modify your code to select the appropriate connection string based on the current environment, typically by using the **IHostEnvironment** service:

```plaintext
public void ConfigureServices(IServiceCollection services)
{
    string defaultConnectionString = Configuration.GetConnectionString("DefaultConnection");
    string productionConnectionString = Configuration.GetConnectionString("ProductionConnection");

    string connectionString = Environment.IsProduction() ? productionConnectionString : defaultConnectionString;

    services.AddDbContext<MyDbContext>(options =>
        options.UseSqlServer(connectionString));

    // Other services configuration
}
```

By following these steps, you can configure and use connection strings in your .NET Core 6 application. This approach allows you to centralize your configuration settings and provides flexibility to switch between different connection strings based on the environment.


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Original Source: https://www.mindstick.com/forum/160447/how-to-configure-connection-string-in-dot-net-core-6

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