Output OpenAPI json file during build

[LoaderB0T]

Hi,

I just started looking into a project that uses FastEndpoints and I am trying to find a way to generate the OpenAPI file(s) during the build.

I imagine it would work similarly to the GenerateClientsAndExitAsync method. The difference is that I don't want a whole Client to be generated, just the OpenAPI description file (json or yaml) that is otherwise available during runtime in the browser.

Is this somehow possible or planned? 😃. Otherwise FastEndpoints seems like a really nice choice for creating... well... fast endpoints! 😁

Thanks

[dj-nitehawk]

can add that in a few days. but if you're in a hurry, it's pretty easy to do it yourself inside an if block in the startup yourself. see this test code for an example:
https://github.com/FastEndpoints/FastEndpoints/blob/main/Tests/IntegrationTests/FastEndpoints.Swagger.IntegrationTests/SwaggerDocTests.cs

[LoaderB0T]

Thanks for the hint, I got it working in no time,
A built-in method would be the cherry on the top 👍

[dj-nitehawk]

implemented in v5.4.1.5-beta

FastEndpoints/Src/ClientGen/Extensions.cs

Lines 148 to 155 in d6e9000

	/// <summary>
	/// exports swagger.json files to disk if the application is run with the commandline argument <c>--exportswaggerjson true</c>
	/// and exits the program with a zero exit code.
	/// <para>HINT: make sure to place the call straight after <c>app.UseFastEndpoints()</c></para>
	/// </summary>
	/// <param name="documentName">the name of the swagger document to generate the clients for</param>
	/// <param name="destinationPath">the folder path (without file name) where the client files will be save to</param>
	public static async Task ExportSwaggerJsonAndExitAsync(this WebApplication app, string documentName, string destinationPath)

[LoaderB0T]

Wow, thanks a lot for the quick solution!

[frasermclean]

This is awesome! Thanks