Where to store API access token?

Question

I am using an API ( https://developers.gfycat.com/api/ ) that uses the typical OAuth flow to grant developers access to API requests. I am able to successfully simulate the entire process of getting an access token and using it in an API request by manually plugging in the values throughout my code. Now that I have all the moving parts successfully working, I am trying to put all the pieces together and have some questions:

A successful request for the API access token looks like this:

{"token_type":"bearer","scope":"","expires_in":3600,"access_token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1NDM5NTIzOTEsImlzcyI6IjJfWldiaktHIiwicm9sZXMiOlsiQ29udGVudF9SZWFkZXIiXX0.SFdMGS8J_KP7pM2H33eu3l6ip2-8PkVHM4VTZzxTWyw"}

1. Is it best to retrieve the access token once at app launch, then store the access token somewhere, and then every time I try making an API request ensure that I catch any "access token expired" errors before attempting to retrieve an access token? Or is it acceptable to simply make a request for the access_token each and every time I make an API request, even if it's very frequently?

2. Where in my app do I store the access_token field if I decide to go that route?

Answer 1

1. create a column in table of database to save the token,but it's kinda annoying because every time when you need to update your token , you have to write to databases again.
2. you can search "Redis", I think it can help you more suitable to save the token