Question about huma.WriteErr

[NeroBlackstone]

In huma middleware docs.

I don't know where dose the variable api come from?

func MyMiddleware(ctx huma.Context, next func(ctx huma.Context)) {
	// If there is a query parameter "error=true", then return an error
	if ctx.Query("error") == "true" {
               // WHERE DOSE THE VARIABLE API COME FROM
		huma.WriteErr(api, ctx, http.StatusInternalServerError,
			"Some friendly message", fmt.Errorf("error detail"),
		)
		return
	}

	// Otherwise, just continue as normal.
	next(ctx)
})

[danielgtaylor]

@NeroBlackstone you can pass it into the middleware creation function. This creates a closure where you have access to the API. For example, this prints the API title in a middleware:

func MyMiddleware(api huma.API) func(ctx huma.Context, next func(huma.Context)) {
	return func(ctx huma.Context, next func(huma.Context)) {
		fmt.Println("Hello from middleware for " + api.OpenAPI().Info.Title)
		next(ctx)
	}
}

https://go.dev/play/p/khcUijO0D34