Yii2 Rest API Batch update and filtering

Question

1. I am looking to implement batch insert and update in my Yii2 Rest API.

   For single record updation, I am using the Rest API call as

   https://xxxxxx.com/api/web/v1/contacts/update/1 . It wil update the record with ID = 1

   But Now I want to update multiple records with a single API call.How to call the API for that?

2. For data filtering I am using

   https://xxxxxx.com/api/web/v1/contacts?filter[contact_name][like]=sa to filter contact name. If I want to filter the data by id like ID in [1,2,3],How can i do that?

   Please let me know the work around for these two challenges.

   Thank you