Function parseApp

modules/caddyevents/eventsconfig/caddyfile.go:42–82

parseApp configures the "events" global option from Caddyfile to set up the events app. Syntax: events { on <event> <handler_module...> } If <event> is *, then it will bind to all events.

(d *caddyfile.Dispenser, _ any)

//
// If <event> is *, then it will bind to all events.
func parseApp(d *caddyfile.Dispenser, _ any) (any, error) {
	d.Next() // consume option name
	app := new(caddyevents.App)
	for d.NextBlock(0) {
		switch d.Val() {
		case "on":
			if !d.NextArg() {
				return nil, d.ArgErr()
			}
			eventName := d.Val()
			if eventName == "*" {
				eventName = ""
			}

			if !d.NextArg() {
				return nil, d.ArgErr()
			}
			handlerName := d.Val()
			modID := "events.handlers." + handlerName
			unm, err := caddyfile.UnmarshalModule(d, modID)
			if err != nil {
				return nil, err
			}

			app.Subscriptions = append(app.Subscriptions, &caddyevents.Subscription{
				Events: []string{eventName},
				HandlersRaw: []json.RawMessage{
					caddyconfig.JSONModuleObject(unm, "handler", handlerName, nil),
				},
			})

		default:
			return nil, d.ArgErr()
		}
	}

	return httpcaddyfile.App{
		Name:  "events",
		Value: caddyconfig.JSON(app, nil),
	}, nil
}