DateOnly Json Conversion in .net6 api

DateOnly Json Conversion in .net6 api

To serialize/deserialize a DateOnly object in .NET 6 API, you can use the System.Text.Json library which is built-in and does not require any additional installation.

First, make sure to set the JsonSerializerOptions to use the yyyy-MM-dd format for the date. You can set this in the ConfigureServices method of the Startup.cs file:

public void ConfigureServices(IServiceCollection services) { services.AddControllers() .AddJsonOptions(options => { options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase; options.JsonSerializerOptions.Converters.Add(new DateOnlyConverter("yyyy-MM-dd")); }); }

Then, create a custom JsonConverter to handle the DateOnly type. Here's an example implementation:

public class DateOnlyConverter : JsonConverter<DateOnly> { private readonly string _dateFormat; public DateOnlyConverter(string dateFormat) { _dateFormat = dateFormat; } public override DateOnly Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) { return DateOnly.ParseExact(reader.GetString(), _dateFormat); } public override void Write(Utf8JsonWriter writer, DateOnly value, JsonSerializerOptions options) { writer.WriteStringValue(value.ToString(_dateFormat)); } }

With this implementation, you can now serialize/deserialize DateOnly objects in your API controllers like this:

public class MyController : ControllerBase { [HttpGet] public IActionResult Get() { var myDate = new DateOnly(2022, 3, 15); var jsonString = JsonSerializer.Serialize(myDate); // {"value":"2022-03-15"} var deserializedDate = JsonSerializer.Deserialize<DateOnly>(jsonString); return Ok(deserializedDate); } }

Examples

  1. Serialize DateOnly Property to JSON in .NET 6 API

    public class MyModel { public DateOnly DateProperty { get; set; } }

    Description: Defining a DateOnly property in a model for serialization to JSON in a .NET 6 API.

  2. JSON Serialization Settings for DateOnly in .NET 6 API

    services.AddControllers().AddJsonOptions(options => { options.JsonSerializerOptions.Converters.Add(new DateOnlyConverter()); });

    Description: Configuring JSON serialization settings in a .NET 6 API to handle serialization of DateOnly using a custom converter.

  3. Custom JSON Converter for DateOnly in .NET 6 API

    public class DateOnlyConverter : JsonConverter<DateOnly> { public override DateOnly Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) => DateOnly.Parse(reader.GetString()); public override void Write(Utf8JsonWriter writer, DateOnly value, JsonSerializerOptions options) => writer.WriteStringValue(value.ToString()); }

    Description: Implementing a custom JSON converter for DateOnly to handle serialization and deserialization in a .NET 6 API.

  4. DateOnly Serialization Format in .NET 6 API

    services.AddControllers().AddJsonOptions(options => { options.JsonSerializerOptions.Converters.Add(new DateOnlyConverter()); options.JsonSerializerOptions.DefaultBufferSize = 256; options.JsonSerializerOptions.WriteIndented = true; });

    Description: Configuring additional settings for the JSON serializer in a .NET 6 API to control the serialization format of DateOnly.

  5. DateOnly Property in JSON Response of .NET 6 API

    [HttpGet] public IActionResult GetDateOnly() { var model = new MyModel { DateProperty = DateOnly.Now }; return Ok(model); }

    Description: Exposing a DateOnly property in the JSON response of a .NET 6 API controller.

  6. DateOnly Deserialization from JSON in .NET 6 API

    [HttpPost] public IActionResult PostDateOnly([FromBody] MyModel model) { // model.DateProperty contains the deserialized DateOnly value return Ok(); }

    Description: Handling deserialization of a DateOnly property from JSON in a .NET 6 API controller.

  7. Handling Null DateOnly Property in JSON in .NET 6 API

    public class MyModel { public DateOnly? DateProperty { get; set; } }

    Description: Defining a nullable DateOnly property in a model to handle null values during JSON serialization and deserialization.

  8. DateOnly Format in JSON Response of .NET 6 API

    [HttpGet] public IActionResult GetDateOnly() { var model = new MyModel { DateProperty = DateOnly.Now }; return Ok(model); }

    Description: Controlling the format of the DateOnly property in the JSON response of a .NET 6 API controller.

  9. Ignoring DateOnly Property During JSON Serialization in .NET 6 API

    [JsonIgnore] public DateOnly DateProperty { get; set; }

    Description: Using the JsonIgnore attribute to exclude a DateOnly property from JSON serialization in a .NET 6 API.

  10. Handling Different DateOnly Formats in JSON in .NET 6 API

    services.AddControllers().AddJsonOptions(options => { options.JsonSerializerOptions.Converters.Add(new DateOnlyConverter("yyyy-MM-dd")); });

    Description: Configuring a custom DateOnlyConverter with a specific date format for handling different DateOnly formats during JSON serialization and deserialization in a .NET 6 API.

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