Question Validate user input is a store game url

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Hi Mod, 

how can i validate the userinput is a steam store game url and get the details of the games such as name, price of the game. 

 

kindly help

sir

 

 

for example,

input : https://store.steampowered.com/app/284790/Nightmares_from_the_Deep_2_The_Sirens_Call/

 

validate it and get app id and all the details of the app id

 

 

and also

if something which does not belong to steam store - an excecption