43 lines
1.4 KiB
C#
43 lines
1.4 KiB
C#
using System.Dynamic;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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using Elsa.Expressions.Helpers;
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using Elsa.Http.Contracts;
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using Elsa.Workflows.Core.Serialization.Converters;
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namespace Elsa.Http.Parsers;
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/// <summary>
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/// Reads application/json and text/json content type streams.
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/// </summary>
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public class JsonHttpContentParser : IHttpContentParser
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{
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/// <inheritdoc />
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public int Priority => 0;
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/// <inheritdoc />
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public bool GetSupportsContentType(string contentType) => contentType.Contains("json", StringComparison.InvariantCultureIgnoreCase);
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/// <inheritdoc />
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public async Task<object> ReadAsync(Stream content, Type? returnType, CancellationToken cancellationToken)
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{
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var options = new JsonSerializerOptions
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{
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PropertyNameCaseInsensitive = true
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};
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options.Converters.Add(new JsonStringEnumConverter());
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using var reader = new StreamReader(content, leaveOpen: true);
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var json = await reader.ReadToEndAsync();
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if (returnType == null || returnType.IsPrimitive)
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return json.ConvertTo(returnType ?? typeof(string))!;
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if (returnType != typeof(ExpandoObject) && returnType != typeof(object))
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return JsonSerializer.Deserialize(json, returnType, options)!;
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options.Converters.Add(new ExpandoObjectConverterFactory());
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return JsonSerializer.Deserialize<object>(json, options)!;
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}
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} |