Error when trying to add new Subscriber

[eclane]

Hello, I am trying to add a new subscriber using go and gin-gonic, but I keep getting an error

"error": "POST https://connect.mailerlite.com/api/subscribers: 422 The groups field must be an array. map[groups:[The groups field must be an array.]]",

Here is my code

var MAILERLITE_API = os.Getenv("MAILERLITE_API")
func SaveNewsletter() gin.HandlerFunc {
	return func(c *gin.Context) {
		client := mailerlite.NewClient(MAILERLITE_API)
		ctx := context.TODO()
		subscriber := &mailerlite.Subscriber{
			Email: "example@gmail.com",
			Fields: map[string]interface{}{
				"city": "Vilnius",
			},
		}
		newSubscriber, _, err := client.Subscriber.Create(ctx, subscriber)
		if err != nil {
			c.JSON(http.StatusInternalServerError, gin.H{"success": false, "error": err.Error()})
			return
		}
		log.Println(err, newSubscriber)
		c.JSON(http.StatusOK, gin.H{
			"success":    true,
			"subscriber": newSubscriber.Data,
		})

	}
}

[agparadiso]

If you don't need to add groups you can probably make it work by adding:
Groups: []mailerlite.Group{},
like this:

subscriber := &mailerlite.Subscriber{
			Email: "example@gmail.com",
			Fields: map[string]interface{}{
				"city": "Vilnius",
			},
			Groups: []mailerlite.Group{},
		}

If you need to add groups like Im trying to do now, this won't work because the api is expecting a list of strings instead of a list of mailerlite.Group{}. Probably a new struct should be created for the creation of subscribers

[robgordon89]

open to PR's to fix this 👍

[robgordon89]

you can now submit this without groups, im trying to think of the best way to handle subscriber groups 🤔 i would hate to have to introduce a new type just for this NewSubscriber for example