Greetings!
GraphQL was developed by Facebook and launched publically in 2015.
Sure, can assist you in developing React Native Shopify App as per required.
Relevant Skills and Experience
Excellent ability in front-end and back-end development.
Skilled in Swift, X-Code, Javascript, React.js, HTML5, CSS3.
Well versed in Shopify POS app SDK and GraphQL.
Proposed Milestones
$750 USD - Tentative cost
Looking forward to your reply,
Regards.