Need to Load Chinese Health Code on my Mobile Phone

Dear Sir/Madam,
I need to satisfy the requirements to board an airplane bound for Shanghai:
Tuesday, 02AUG 2022 DEPART Seattle
DELTA 287 11:55pm

Arrive SHANGHAI-PUDONG1
6:10am
Thursday 4 August 2022
I have a copy of my vaccination Card, a residence permit and visa to visit my wife in Qingyuan, Guangdong Province.
Is there a Clinic run by Chinese medical staff near the SEATAC airport who can give me a PCR test and help me load the health code on my mobile phone?

Thank you so much.
Mickey Joseph Greisen