我已经使用此签名实现了端点
[HttpPost("Test")]
public IActionResult MyTest([Required] IFormFile pdf, [Required] IFormFile image)
{
// some stuff...
return Ok();
}
这会在swagger.json (相关部分)
中生成以下条目"content": {
"multipart/form-data": {
"schema": {
"required": [
"image",
"pdf"
],
"type": "object",
"properties": {
"pdf": {
"type": "string",
"format": "binary"
},
"image": {
"type": "string",
"format": "binary"
}
}
},
"encoding": {
"pdf": {
"style": "form"
},
"image": {
"style": "form"
}
}
}
}
但是,我还需要指定编码,例如the specs(v3)。所以对于我的任务,我认为JSON应该看起来像这样……
"encoding": {
"pdf": {
"style": "form",
"contentType": "application/pdf"
},
"image": {
"style": "form",
"contentType": "image/png, image/jpeg"
}
}
但是我该如何从代码中做到这一点?我想到了SwaggerParameter attribute,但是它只包含描述和必需的标志...
我在.NET Core 2.2上使用Swashbuckle.AspNetCore NuGeT软件包(版本5.0.0-rc2)。
答案 0 :(得分:2)
如果您查看this line,则会看到仅使用Style
属性创建了编码,而未设置ContentType
。您可以通过创建自定义Attribute
并在其中定义内容类型的方式来手动设置此设置:
[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter,AllowMultiple = false)]
public class OpenApiEncodingContentTypeAttribute : Attribute
{
public OpenApiEncodingContentTypeAttribute(string contentType)
{
ContentType = contentType;
}
public string ContentType { get; }
}
,然后在Attribute
内使用那个IOperationFilter
public class FormContentTypeSchemaOperationFilter : IOperationFilter
{
public void Apply(OpenApiOperation operation, OperationFilterContext context)
{
var contentTypeByParameterName = context.MethodInfo.GetParameters()
.Where(p => p.IsDefined(typeof(OpenApiEncodingContentTypeAttribute), true))
.ToDictionary(p => p.Name, s => s.GetCustomAttribute<OpenApiEncodingContentTypeAttribute>().ContentType);
if (contentTypeByParameterName.Any())
{
foreach (var requestContent in operation.RequestBody.Content)
{
var encodings = requestContent.Value.Encoding;
foreach (var encoding in encodings)
{
if (contentTypeByParameterName.TryGetValue(encoding.Key, out string value))
{
encoding.Value.ContentType = value;
}
}
}
}
}
}
然后只需使用此Attribute
[HttpPost("Test")]
public IActionResult MyTest([Required] [OpenApiEncodingContentType("application/pdf")] IFormFile pdf, [Required] [OpenApiEncodingContentType("image/png, image/jpeg")] IFormFile image)
{
// some stuff...
return Ok();
}
也不要忘记在IOperationFilter
中定义AddSwaggerGen
services.AddSwaggerGen(opts =>
{
// all other stuff
opts.OperationFilter<FormContentTypeSchemaOperationFilter>();
})
这就是你得到的
"requestBody": {
"content": {
"multipart/form-data": {
"schema": {
"required": [
"image",
"pdf"
],
"type": "object",
"properties": {
"pdf": {
"type": "string",
"format": "binary"
},
"image": {
"type": "string",
"format": "binary"
}
}
},
"encoding": {
"pdf": {
"contentType": "application/pdf",
"style": "form"
},
"image": {
"contentType": "image/png, image/jpeg",
"style": "form"
}
}
}
}
}
您可能可以通过附加检查/空检查和其他适合您需要的内容来改善IOperationFilter
,因为这只是一个基本实现。
答案 1 :(得分:0)
您还可以查看ISchemaFilter和以下问题:
https://github.com/domaindrivendev/Swashbuckle.AspNetCore/issues/1148
这可能有助于您过滤操作并为同一类型(IFormInput)添加不同的contentStyles。
我相信您当前要实现的目标只有使用自定义属性,但是在活动开发中有一个活动的分支可增强FormsInput支持,也许您可以添加功能请求。
https://github.com/domaindrivendev/Swashbuckle.AspNetCore/commits/enhance-support-for-forms