csharp

IP2Region.Net

.NET client library for IP2Region

Installation

Install the package with NuGet

Install-Package IP2Region.Net

Usage

using IP2Region.Net.Abstractions;
using IP2Region.Net.XDB;

ISearcher searcher = new Searcher(CachePolicy , "your xdb file path");

Cache Policy Description

Cache Policy	Description	Thread Safe
CachePolicy.Content	Cache the entire xdb data.	Yes
CachePolicy.VectorIndex	Cache vecotorIndex to speed up queries and reduce system io pressure by reducing one fixed IO operation.	Yes
CachePolicy.File	Completely file-based queries	Yes

XDB File Description

Generate using maker, or download pre-generated xdb files

ASP.NET Core Usage

services.AddSingleton<ISearcher>(new Searcher(CachePolicy , "your xdb file path"));

Performance

BenchmarkDotNet=v0.13.2, OS=macOS 13.4.1 (c) (22F770820d) [Darwin 22.5.0]
Apple M1, 1 CPU, 8 logical and 8 physical cores
.NET SDK=7.0.306
  [Host]     : .NET 6.0.20 (6.0.2023.32017), Arm64 RyuJIT AdvSIMD
  DefaultJob : .NET 6.0.20 (6.0.2023.32017), Arm64 RyuJIT AdvSIMD

Method	Mean	Error	StdDev
CachePolicy_Content	155.7 ns	0.46 ns	0.39 ns
CachePolicy_File	2,186.8 ns	34.27 ns	32.06 ns
CachePolicy_VectorIndex	1,570.3 ns	27.53 ns	22.99 ns

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

Apache License 2.0