带有 IDictionary<string, object> 的自定义模型绑定器

Answer 1

还有另一种方法。如果您的问题真的只是您想获取字典的值，那么只需像这样发送您的请求：

curl --location --request POST 'https://localhost:7299/api/data/cars' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--data-raw '{ "Record": {
    "model": 1,
    "name": "Ford",
    "id":"a47d52de-fcd1-48e7-8656-7edb84dc78bd",
    "is_created": true,
    "date":"2022-09-23",
    "datetime":"2022-09-23 13:10"
}}'

如果您想摆脱Record 属性，那么您可能无法避免编写自定义活页夹。像这样的东西。

[ModelBinder(BinderType = typeof(CreateSingleRecordBnder))]
public class CreateSingleRecord : ICommand<object>
{
    public string Entity { get; init; }

    public IDictionary<string, object> Record { get; init; }
}

模型粘合剂

public class CreateSingleRecordBnder : IModelBinder
{
    public async Task BindModelAsync(ModelBindingContext bindingContext)
    {
        if (bindingContext == null)
        {
            throw new ArgumentNullException(nameof(bindingContext));
        }

        var bodyStream = bindingContext.HttpContext.Request.Body;
        using var streamReader = new StreamReader(bodyStream);
        var body = await streamReader.ReadToEndAsync();

        var data = System.Text.Json.JsonSerializer.Deserialize<IDictionary<string, object>>(body);

        var model = new CreateSingleRecord
        {
            Entity = bindingContext.HttpContext.Request.RouteValues["entity"].ToString(),
            Record = data
        };

        bindingContext.Result = ModelBindingResult.Success(model);
    }
}

更新

删除混合绑定并尝试这个怎么样？是不是更适合你？

端点

[HttpPost]
[Route("/api/data/{entity}")]

public async Task<object> CreateSingleEntity([FromRoute] CreateSingleRecord model)
{
    await Task.CompletedTask;
    return Task.FromResult("Test");
}

和单曲

public class CreateSingleRecord : ICommand<object>
{
    [FromRoute(Name = "entity")]
    public string Entity { get; init; }

    [FromBody]
    public IDictionary<string, object> Record { get; init; }
}