connect react app to backend make necessary changes to call the api from backend

Hello! I'm looking to connect a VERY SMALL React REDUX app to backend (YOU NEED TO CREATE THE BACKEND WITH NODE EXPRESSJS AND AXIOS AND MYSQL (REQUIRED) NO OTHER DB ALLOWED, RIGHT NOW ALL THE API IS BEING CALLED FROM REACT REDUX THUNK I NEED U TO MAKE CHANGES SO THAT REDUX SHOULD CONTACT BACKEND TO GET THE THIRD PARTY API WITH SECRET KEY NOT BEING EXPOSED..) and make the necessary changes to call the API from the backend. The framework I want to use is Node.js, and while I don't have an existing database I can create one. On top of that, I do have existing server infrastructure already set up. All I need is the right freelancer to make the necessary changes and ensure everything works as it should. Please let me know if you have any questions and I'm looking forward to seeing what you can do.
FRONTEND MADE BACKEND U HAVE TO CREATE AND CONNECT WHOLE THING TO MAKE IT FULL STACK. I AM STUDING SO PLEASE MAKE SURE TO ADD COMMENTS AND DESCRIBE EACH STEP. I NEED IT TO BE COMPLETED ASAP.