Morcatko.AspNetCore.JsonMergePatch 2.0.4

JSON Merge Patch support for ASP.NET Core 2.X

Install-Package Morcatko.AspNetCore.JsonMergePatch -Version 2.0.4
dotnet add package Morcatko.AspNetCore.JsonMergePatch --version 2.0.4
<PackageReference Include="Morcatko.AspNetCore.JsonMergePatch" Version="2.0.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Morcatko.AspNetCore.JsonMergePatch --version 2.0.4
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

JSON Merge Patch support for ASP.NET Core

Nuget - Morcatko.AspNetCore.JsonMergePatch (ASP.NET Core 2.x)
Nuget - Morcatko.AspNetCore.JsonMergePatch.NewtonsoftJson (ASP.NET Core 3.x)
Nuget - Morcatko.AspNetCore.JsonMergePatch.SystemText (ASP.NET Core 3.x)
Nuget - Morcatko.AspNetCore.JsonMergePatch.Document (ASP.NET Core 3.x - base package)

JSON Merge Patch

  • RFC 7396
  • performs partial resource update similar to JSON Patch
  • Supports Swagger
  • netstandard 2.0
C# object:
var backendModel = new Model()
{
    Name = "James Bond"
    Age = "45"
    Weapon = "Gun"
}

JSON Merge Patch:
{
    "Weapon": "Knife"
}

resulting C# object:
{
    Name = "James Bond"
    Age = "45"
    Weapon = "Knife"
}

How to

See 2.1-testApp or 3.0 testApp for sample

  1. Install nuget.
  1. Add to your startup class
using Morcatko.AspNetCore.JsonMergePatch;

public void ConfigureServices(IServiceCollection services)
{
    ...
    services
        .AddMvc()                         // or .AddMvcCore()
        //.AddJsonMergePatch();           // 2.x
        //.AddNewtonsoftJsonMergePatch(); // 3.x (Newtonsoft.Josn)
        //.AddSystemTextJsonMergePatch(); // 3.x (System.Text)
    ...
}
  1. Use in your controller
using Morcatko.AspNetCore.JsonMergePatch;

[HttpPatch]
[Consumes(JsonMergePatchDocument.ContentType)]
public void Patch([FromBody] JsonMergePatchDocument<Model> patch)
{
    ...
    patch.ApplyTo(backendModel);
    ...
}

You can apply a patch to a different Type (be carefull, all C# static typing is ignored) - see #16 for more details.

BackendModel backendModel;
JsonMergePatch<DtoModel> patch;
patch.ApplyToT(backendModel)
  1. Swagger config (optional)

copy & paste this class into your app

  • 2.x - https://github.com/Morcatko/Morcatko.AspNetCore.JsonMergePatch/blob/master/src/2.1-testApp/JsonMergePatchDocumentOperationFilter.cs
  • 3.x - https://github.com/Morcatko/Morcatko.AspNetCore.JsonMergePatch/blob/master/src/3.0-testApp/JsonMergePatchDocumentOperationFilter.cs
services.AddSwaggerGen(c =>
    {
        c.OperationFilter<JsonMergePatchDocumentOperationFilter>();
    });

Options

    services
        .AddMvc()
        .AddJsonMergePatch(o => ....)
  • bool EnableDelete - Deletes items when target object is Dictionary and patched value is null

How to - unit testing

See tests in ...Builder.Json.Simple class for more examples

Morcatko.AspNetCore.JsonMergePatch.Tests.Builder.Json

public void UnitTest()
{
    var model = new Model();
    var patch1 = PatchBuidler.Build<Model>("{ integer: 1}");
    ...
    or
    ...
    var original = new Model();
    var patched = new Model() { Integer = 1};
    var patch2 = PatchBuilder.Build(original, patched);
}

Known issues/Not working

  • ModelState.IsValid is false when a required property is missing
  • Enums with [EnumMember(Value = "....")] attribute

JSON Merge Patch support for ASP.NET Core

Nuget - Morcatko.AspNetCore.JsonMergePatch (ASP.NET Core 2.x)
Nuget - Morcatko.AspNetCore.JsonMergePatch.NewtonsoftJson (ASP.NET Core 3.x)
Nuget - Morcatko.AspNetCore.JsonMergePatch.SystemText (ASP.NET Core 3.x)
Nuget - Morcatko.AspNetCore.JsonMergePatch.Document (ASP.NET Core 3.x - base package)

JSON Merge Patch

  • RFC 7396
  • performs partial resource update similar to JSON Patch
  • Supports Swagger
  • netstandard 2.0
C# object:
var backendModel = new Model()
{
    Name = "James Bond"
    Age = "45"
    Weapon = "Gun"
}

JSON Merge Patch:
{
    "Weapon": "Knife"
}

resulting C# object:
{
    Name = "James Bond"
    Age = "45"
    Weapon = "Knife"
}

How to

See 2.1-testApp or 3.0 testApp for sample

  1. Install nuget.
  1. Add to your startup class
using Morcatko.AspNetCore.JsonMergePatch;

public void ConfigureServices(IServiceCollection services)
{
    ...
    services
        .AddMvc()                         // or .AddMvcCore()
        //.AddJsonMergePatch();           // 2.x
        //.AddNewtonsoftJsonMergePatch(); // 3.x (Newtonsoft.Josn)
        //.AddSystemTextJsonMergePatch(); // 3.x (System.Text)
    ...
}
  1. Use in your controller
using Morcatko.AspNetCore.JsonMergePatch;

[HttpPatch]
[Consumes(JsonMergePatchDocument.ContentType)]
public void Patch([FromBody] JsonMergePatchDocument<Model> patch)
{
    ...
    patch.ApplyTo(backendModel);
    ...
}

You can apply a patch to a different Type (be carefull, all C# static typing is ignored) - see #16 for more details.

BackendModel backendModel;
JsonMergePatch<DtoModel> patch;
patch.ApplyToT(backendModel)
  1. Swagger config (optional)

copy & paste this class into your app

  • 2.x - https://github.com/Morcatko/Morcatko.AspNetCore.JsonMergePatch/blob/master/src/2.1-testApp/JsonMergePatchDocumentOperationFilter.cs
  • 3.x - https://github.com/Morcatko/Morcatko.AspNetCore.JsonMergePatch/blob/master/src/3.0-testApp/JsonMergePatchDocumentOperationFilter.cs
services.AddSwaggerGen(c =>
    {
        c.OperationFilter<JsonMergePatchDocumentOperationFilter>();
    });

Options

    services
        .AddMvc()
        .AddJsonMergePatch(o => ....)
  • bool EnableDelete - Deletes items when target object is Dictionary and patched value is null

How to - unit testing

See tests in ...Builder.Json.Simple class for more examples

Morcatko.AspNetCore.JsonMergePatch.Tests.Builder.Json

public void UnitTest()
{
    var model = new Model();
    var patch1 = PatchBuidler.Build<Model>("{ integer: 1}");
    ...
    or
    ...
    var original = new Model();
    var patched = new Model() { Integer = 1};
    var patch2 = PatchBuilder.Build(original, patched);
}

Known issues/Not working

  • ModelState.IsValid is false when a required property is missing
  • Enums with [EnumMember(Value = "....")] attribute

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version History

Version Downloads Last updated
2.0.4 498 8/26/2020
2.0.3 274 8/7/2020
2.0.2 9,013 11/7/2019
2.0.1 1,213 11/3/2019
2.0.0 15,214 6/20/2019
2.0.0-beta10 803 5/27/2019
2.0.0-beta09 1,891 4/11/2019
2.0.0-beta08 326 4/2/2019
2.0.0-beta07 11,082 12/13/2018
2.0.0-beta06 1,079 12/7/2018
2.0.0-beta05 1,831 11/20/2018
2.0.0-beta04 6,770 9/7/2018
2.0.0-beta03 4,765 11/6/2017
2.0.0-beta02 368 11/3/2017
2.0.0-beta01 328 10/24/2017
2.0.0-alpha02 1,243 9/14/2017
1.0.0-alpha01 525 6/23/2017