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Extend the swagger
x-amazon-apigateway-integration
| Program.cs |
// Assembly Swashbuckle.AspNetCore.SwaggerGen
services.AddSwaggerGen(c =>
{
c.DocumentFilter<ApiGatewayDocumentFilter>();
};
|
| ApiGatewayDocumentFilter.cs |
public class ApiGatewayDocumentFilter : IDocumentFilter
{
private static OpenApiObject AddGatewayExtension(KeyValuePair<string, OpenApiPathItem> path, OperationType operationType)
{
var pathParameters = path.Value.Operations.First().Value.Parameters.Where(p => p.In.HasValue && p.In.Value.ToString().Equals("Path")).ToList();
var requestParam = new OpenApiObject();
foreach (var parameter in pathParameters)
{
requestParam.Add($"integration.request.path.{parameter.Name}", new OpenApiString($"method.request.path.{parameter.Name}"));
}
return new OpenApiObject
{
["type"] = new OpenApiString("${type}"),
["requestParameters"] = requestParam,
["uri"] = new OpenApiString("${uri}" + path.Key),
["httpMethod"] = new OpenApiString(operationType.ToString().ToUpper()),
["connectionId"] = new OpenApiString("${vpc_link_id}"),
["connectionType"] = new OpenApiString("${connection_type}"),
["passthroughBehavior"] = new OpenApiString("when_no_match")
};
}
private static void BuildCorsOperation(OpenApiOperation operation, KeyValuePair<string, OpenApiPathItem> path, OperationType operationType)
{
var response = new OpenApiResponse
{
Description = "Success",
};
var corsOperation = new OpenApiOperation
{
Summary = operation.Summary,
Parameters = operation.Parameters.ToList(),
Tags = operation.Tags.OrderBy(x => x.Name).ToList(),
Responses = new OpenApiResponses
{
{ "204", response }
},
};
corsOperation.Extensions.Add("x-amazon-apigateway-integration", AddGatewayExtension(path, operationType));
path.Value.Operations.Add(operationType, corsOperation);
}
public void Apply(OpenApiDocument swaggerDoc, DocumentFilterContext context)
{
foreach (var path in swaggerDoc.Paths)
{
foreach (var operation in path.Value.Operations)
{
operation.Value.Extensions.Add("x-amazon-apigateway-integration", AddGatewayExtension(path, operation.Key));
}
BuildCorsOperation(path.Value.Operations.FirstOrDefault().Value, path, OperationType.Options);
}
}
}
|
