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feat: Introduce object mapper benchmarking project

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This project provides a comparative analysis of popular .NET object-to-object
mapping libraries, including AutoMapper, TinyMapper, Mapster, and Mapperly,
against a hand-written and a generated manual mapper.

It uses BenchmarkDotNet to measure performance and memory allocation when
mapping a complex Spotify album DTO structure.
This commit is contained in:
Thom Lamb
2026-06-23 10:26:13 -05:00
parent ce849058bb
commit 63bc9f1fd5
9 changed files with 940 additions and 0 deletions
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MappersBenchmarks/Models/SpotifyAlbum.cs
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namespace MappersBenchmarks.Models;
public class SpotifyAlbum
{
public string AlbumType { get; set; }
public Artist[] Artists { get; set; }
public string[] AvailableMarkets { get; set; }
public Copyright[] Copyrights { get; set; }
public ExternalIds ExternalIds { get; set; }
public ExternalUrls ExternalUrls { get; set; }
public object[] Genres { get; set; }
public string Href { get; set; }
public string Id { get; set; }
public Image[] Images { get; set; }
public string Name { get; set; }
public long Popularity { get; set; }
public string ReleaseDate { get; set; }
public string ReleaseDatePrecision { get; set; }
public Tracks Tracks { get; set; }
public string Type { get; set; }
public string Uri { get; set; }
}
public class Tracks
{
public string Href { get; set; }
public Item[] Items { get; set; }
public long Limit { get; set; }
public object Next { get; set; }
public long Offset { get; set; }
public object Previous { get; set; }
public long Total { get; set; }
}
public class Item
{
public Artist[] Artists { get; set; }
public string[] AvailableMarkets { get; set; }
public long DiscNumber { get; set; }
public long DurationMs { get; set; }
public bool Explicit { get; set; }
public ExternalUrls ExternalUrls { get; set; }
public string Href { get; set; }
public string Id { get; set; }
public string Name { get; set; }
public string PreviewUrl { get; set; }
public long TrackNumber { get; set; }
public string Type { get; set; }
public string Uri { get; set; }
}
public class Image
{
public long Height { get; set; }
public string Url { get; set; }
public long Width { get; set; }
}
public class ExternalIds
{
public string Upc { get; set; }
}
public class Copyright
{
public string Text { get; set; }
public string Type { get; set; }
}
public class Artist
{
public ExternalUrls ExternalUrls { get; set; }
public string Href { get; set; }
public string Id { get; set; }
public string Name { get; set; }
public string Type { get; set; }
public string Uri { get; set; }
}
public class ExternalUrls
{
public string Spotify { get; set; }
}