49 lines
1.7 KiB
C#
49 lines
1.7 KiB
C#
using System.ComponentModel;
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using System.Text.Json.Nodes;
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using Microsoft.AspNetCore.OpenApi;
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using Microsoft.OpenApi;
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namespace StopShopping.Api.Extensions;
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/// <summary>
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/// 处理enum类型openapi显示
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/// </summary>
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public class EnumOpenApiSchemaTransformer : IOpenApiSchemaTransformer
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{
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public Task TransformAsync(OpenApiSchema schema, OpenApiSchemaTransformerContext context, CancellationToken cancellationToken)
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{
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if (context.JsonTypeInfo.Type.IsEnum)
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{
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schema.Type = JsonSchemaType.Integer;
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var enumValues = Enum.GetValues(context.JsonTypeInfo.Type)
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.Cast<object>()
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.Select(v => JsonNode.Parse(Convert.ToInt32(v).ToString())!)
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.ToList();
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schema.Enum = enumValues;
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var enumNames = Enum.GetNames(context.JsonTypeInfo.Type);
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schema.Extensions ??= new Dictionary<string, IOpenApiExtension>();
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var namesExtension = new JsonNodeExtension(new JsonArray(
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enumNames
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.Select(n => (JsonNode)n)
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.ToArray()));
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schema.Extensions.Add("x-enumNames", namesExtension);
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var descMap = new JsonObject();
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foreach (var name in enumNames)
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{
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if (context.JsonTypeInfo.Type.GetField(name)
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?.GetCustomAttributes(typeof(DescriptionAttribute), false)
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.FirstOrDefault() is DescriptionAttribute attr)
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{
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descMap[name] = attr.Description;
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}
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}
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schema.Extensions.Add("x-enumDescriptions", new JsonNodeExtension(descMap));
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}
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return Task.CompletedTask;
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}
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} |