--- title: "How does .NET Core handle configuration settings and environment-specific configurations?" description: "How does .NET Core handle configuration settings and environment-specific configurations?" author: "Utpal Vishwas" published: 2023-06-25 updated: 2023-06-28 canonical: https://www.mindstick.com/forum/158856/how-does-dot-net-core-handle-configuration-settings-and-environment-specific-configurations category: ".net core" tags: ["asp.net", "asp.net core", ".net core"] reading_time: 3 minutes --- # How does .NET Core handle configuration settings and environment-specific configurations? How does .NET [Core handle configuration](https://www.mindstick.com/forum/158608/how-does-dot-net-core-handle-configuration-and-settings-management) [settings](https://www.mindstick.com/blog/63563/steps-to-change-the-wireless-settings-using-linksys-cloud-account) and [environment](https://yourviews.mindstick.com/view/308/need-to-create-a-supportive-work-environment-for-women)-specific configurations? ## Replies ### Reply by Aryan Kumar .NET Core handles [configuration](https://www.mindstick.com/articles/13112/setting-up-the-perfect-configuration-for-your-work-computer) settings and environment-specific configurations using a variety of sources, including: - **Settings files:** These are files that contain configuration data in key-value pairs. The most common settings files are `appsettings.json` and `appsettings.{Environment}.json`, where `{Environment}` is the name of the environment, such as `Development` or `Production`. - **Environment variables:** These are variables that are set by the operating system or by the user. Environment variables can be used to store configuration data that is specific to the environment in which the application is running. - **Command-line arguments:** These are arguments that are passed to the application when it is started. Command-line arguments can be used to store configuration data that is specific to the user or to the current run of the application. - **Configuration providers:** These are classes that can be used to read configuration data from a variety of sources, such as databases, key-value stores, and cloud services. When an application starts, .NET Core will read configuration data from all of the configured sources. The data from the different sources will be merged together, and the resulting configuration data will be used to configure the application. For example, if you have a settings file called `appsettings.json` and an environment variable called `DB_SERVER`, the configuration data from these two sources will be merged together. The resulting configuration data will include the data from the settings file, as well as the value of the `DB_SERVER` environment variable. .NET Core also supports environment-specific configurations. This means that you can have different configuration data for different environments, such as development, staging, and production. To do this, you can create a settings file for each environment. For example, you could have a settings file called `appsettings.Development.json` for the development environment, and a settings file called `appsettings.Production.json` for the production environment. When an application starts, .NET Core will first look for a settings file that is specific to the current environment. If it finds a settings file for the current environment, it will use that file. If it does not find a settings file for the current environment, it will use the default settings file, which is typically `appsettings.json`. Here are some of the benefits of using environment-specific configurations: - **You can have different configuration data for different environments.** This can be useful for storing sensitive data, such as database passwords, in a different configuration file for each environment. - **You can easily switch between environments.** If you need to switch between environments, you can simply change the configuration file that the application is using. - **You can test your application in different environments.** By testing your application in different environments, you can ensure that it works correctly in all environments. Overall, .NET Core provides a flexible and powerful way to [handle](https://www.mindstick.com/articles/311004/suede-skillet-handle-cover) configuration settings and environment-specific configurations. This makes it easy to develop and deploy applications that can be used in a variety of environments. --- Original Source: https://www.mindstick.com/forum/158856/how-does-dot-net-core-handle-configuration-settings-and-environment-specific-configurations Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.