OpenAPI2JsonSchema 1.0.0

OpenApi2JsonSchema

Getting Started

Create OpenAPI-specifiation

First you will need to create an OpenAPI-specification, which you'll be translating to Json-Schema later.

Example

If you use Swashbuckle this might look something like this:

services.AddSwaggerGen(c =>
      {
        c.SwaggerDoc("v1", new OpenApiInfo {Title = "MyApplication", Version = "v1"});
        var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
        var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
        c.IncludeXmlComments(xmlPath);
        c.AddFluentValidationRules();
      });

In this example, an OpenAPI-specification is created. In order to keep Data Annotations out of its model, this examples uses FluentValidationRules, that can be added easily using the last line in the example above.

Installation

Install the library using NuGet-Package Manager:

Install-Package OpenAPI2JsonSchema

Dependency Injection

In order to be able to use the library, simply add the following line to the ConfigureServices()-method in Startup.cs:

services.AddJsonSchemaGenerator();

For this you will need to import the dependency in Startup.cs:

using OpenApi2JsonSchema;

Usage

You can generate a JsonSchema for any type using:

var schema = JsonSchemaGenerator.GetSchemaWithOpenApi<T>("url-to-openapi-file>");

Just replace <url-to-openapi-file> with the URL that points to your OpenAPI-JSON-file.

Create SchemaProvider

Unless you want to specify the OpenAPI-path every time

Configuration

Delete OpenAPI-file on Startup

Since the library downloads the specified OpenAPI-file and caches it for further usage, you can optionally delete the downloaded file on Startup by adding the following lines to the Configure()-method in Startup.cs:

if (File.Exists("swagger.json"))
        File.Delete("swagger.json");

Note that the path to the OpenAPI-file can vary, depending on what download-path you specified.