WhatsApp Business Platform On-Premises API

WhatsApp_Business_Platform_On-Premises_API.txt

https://developers.facebook.com/docs/whatsapp/on-premises/overview

BSP: Business Solution Provider
WhatsApp Business Platform On-Premises API
Tokens
	login------------->Server
	bearer Token<________╱	

Expiration:
		after certain time
		after logout

	Request (expired token) ---> Server
									(401)<________╱	

Headers
	username:password as base64(String)
	∴
	Authorization: Basic YWRtaW46c2VjcmV0.
	
API Keys
	client----------(api_key)---->server
	   health, metrics, and stats<__╱
	   
	Client-----(api_key)--->Server
			Method,Url,Headers,Body

Whatsapp Business API Responses:
	HTTP Status Code
	Payload (on success)
	Meta (like a fingerprint version of api)
	Errors
	
Whatsapp Business API Architecture

[Database]					[Media Volume]
    |                  |
    +------------------+
    |									 |             _________
[WebApp]<------------>[Core App]<-->[WA Servers
    |											|          ---------
	  | 										|
 _________________        |
[Business Servers ]-------+ 
|									|
|_________________]