How can i get the spotify app bundle id and ea session string?

[allenGUO]

Plan

Free/Premium

Country

Device

(iPhone 8, Samsung Galaxy 9, Macbook Pro late 2016)

Operating System

(iOS 10, Android Oreo, Windows 10,etc.)

My Question or Issue

I want to open spotify app with app launch message of iap2, but i don't know the bundle id, how can i get it? what other message shoud  send with ea session? and what's the ea session string? is there any doc for these feature? IAP2 is ok now.