40 lines
1.5 KiB
C#
40 lines
1.5 KiB
C#
using System;
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using System.Threading.Tasks;
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namespace EmbedIO.WebApi
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{
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/// <summary>
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/// <para>Specifies that a parameter of a controller method will receive
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/// an object obtained by deserializing the request body as JSON.</para>
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/// <para>The received object will be <see langword="null"/>
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/// only if the deserialized object is <c>null</c>.</para>
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/// <para>If the request body is not valid JSON,
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/// or if it cannot be deserialized to the type of the parameter,
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/// a <c>400 Bad Request</c> response will be sent to the client.</para>
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/// <para>This class cannot be inherited.</para>
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/// </summary>
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/// <seealso cref="Attribute" />
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/// <seealso cref="IRequestDataAttribute{TController}" />
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[AttributeUsage(AttributeTargets.Parameter)]
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public class JsonDataAttribute : Attribute, IRequestDataAttribute<WebApiController>
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{
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/// <inheritdoc />
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public async Task<object?> GetRequestDataAsync(WebApiController controller, Type type, string parameterName)
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{
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string body;
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using (var reader = controller.HttpContext.OpenRequestText())
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{
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body = await reader.ReadToEndAsync().ConfigureAwait(false);
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}
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try
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{
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return Swan.Formatters.Json.Deserialize(body, type);
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}
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catch (FormatException)
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{
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throw HttpException.BadRequest($"Expected request body to be deserializable to {type.FullName}.");
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}
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}
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}
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} |