Transit Visa needed from flying to Canada from Philipines via China? And how to get it?

Hi,

I am a Filipino, who is immigrating to Canada, I do not have the permanent resident card yet, but I do have the confirmation of permanent residence (COPR).

My flight to Vancouver (China Eastern Airline) has layover in Shanghai-Pu Dong for 3 hours. So I want to know if I need a transit G? As per the ticket, transit visa is required, if yes, then please let me know the process of getting the same.

Thanks
Jen