WA Gateway Project With API & Webhook Integration For Notifications

I want to build a whatsapp gateway which is api integrated and can use webhooks
I have attached the features for myself below :

- Support for 4 Level User Account Features, Super admin, Reseller, Admin and User
- User Permission Feature Level Settings
- User Device Login Device Settings
- Provision of Device Access Limits for Each Reseller, Admin and User
- Device Login Settings
- Every Login Device Supports Whatsapp API For Notification
- Login Time Limit For Subscription
- Super Admin Can Create Multiple Packages For Reseller and Admin and grant access to them
- User Account Supports Webhooks
- Provision of Live Chat Features That Can Be Granted Access Rights to Anyone and This Feature Is Regulated By Super Admin to allow or not allow
- Live Chat User Accounts Can Assign Tags to Chat Targets and Save Chat Target Contacts with names and telephone numbers
- Live Chat Whatsapp 1 Device Can Be Used By Many Users
- Send Multi Whatsapp Messages
- Send Mass Messages (Support Button Url, Telephone, Reply and Support Catalog Menu)
- Send Whatsapp Bulk Messages
- Support Caption, Image, Video, document, and others
- Send Whatsapp Messages Bulk And Spintax Support Variables
- Add Contact Group Feature Support
- Contact List Page, Can Be Integrated With Add Group Contacts
- Import Contact List Using Excel Can Be Integrated with Contact Groups
- Import Contact List Taking Contacts On Mobile Directly Can Be Integrated With Group Contacts
- Import Contact List Take Contacts in Whatsapp Groups Directly and Can Be Integrated with Contact Groups
- Auto Reply (Support Button Url, Telephone, Reply and Support Catalog Menu)
- Message Schedule (Support Button Url, Telephone, Reply and Support Catalog Menu)
- History Chat Autoreply, Support Export and Search by Date
- Chat Report Send Whatsapp Bulk Messages
- etc

Integrated Woocommerce, Contact Form 7 and Caldera