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Available in Nexus Repository OSS and Nexus Repository Pro

With the creation of the NuGet project, a package management solution for .NET developers has become available. Similar to Apache Maven dependency management for Java developers, NuGet makes it easy to add, remove and update libraries and tools in Visual Studio projects that use the .NET Framework.

The project website at www.nuget.org hosts tool downloads and detailed documentation as well as links to further resources and provide a repository and features to upload your open source NuGet packages. With the NuGet Gallery, a repository of open source libraries and tools is available and the need for repository management arises.

Nexus Repository Manager Pro and Nexus Repository Manager OSS support the NuGet repository format for hosted and proxy repositories as well as exposing them to the client-side tools as a repository group and have related repositories preconfigured.

Nexus Repository Manager and NuGet allow you to improve collaboration and control, while speeding up .NET development, by facilitating open source libraries and sharing of internal component across teams. When you standardize on a single repository for all your development and use it for internal components, as well, you will get all the benefits of using a repository manager when working in the .NET architecture.

To share a library or tool with NuGet, you create a NuGet package and store it in the NuGet repository on the repository manager. Similarly, you can use packages others have created and made available in their NuGet repositories by proxying them or downloading the packages and installing them in your own hosted repository for third party packages.

The NuGet Visual Studio extension allows you to download the package from the repository and install it in your Visual Studio project or solution. NuGet copies everything and makes any required changes to your project setup and configuration files.

NuGet Repository Format

The NuGet repository format uses OData queries for communication between the client and the repository. These queries include metadata information about available packages and other data.

When the repository manager receives queries from the nuget client, it passes these queries on to the remote repositories. To avoid sending identical queries to the remote repository, the repository manager caches the queries and will rely on previously stored metadata if the same query is received again before the cache expires.

The NuGet section is included in NuGet proxy repositories to allow configuration of this caching. Specifically, the parameter Metadata query cache age can be used to configure the rate at which queries expire and are subsequently re-run.

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