How to refresh existing db connection username and password

[blnprasad]

I have a long running daemon written in Go, that listens to a port and spins up multiple go routines for every new connection to handle the data. There is a global variable context that has db Conn(*sql.DB) that is assigned connection context returned by database/sql library’s open() function during initialization time.
for security reasons we want to rotate db username & password periodically. I'm looking for best possible way to achieve same but i'm not able to find any pointers to it in documentation. Can you please suggest for the same?
I'm also not able find info about auto reconnection details in case of DB failure. Just wondering how long driver will keep retyring in case of DB shutdown or failure?

closest one that i got is: https://stackoverflow.com/questions/61921525/how-to-update-db-connection-in-gorm-with-new-aws-token/77287404#77287404. but its good for only postgress.

[shogo82148]

closest one that i got is: https://stackoverflow.com/questions/61921525/how-to-update-db-connection-in-gorm-with-new-aws-token/77287404#77287404. but its good for only postgress.

This solution is also good for MySQL.
You can use BeforeConnect option.
https://pkg.go.dev/github.com/go-sql-driver/[email protected]#BeforeConnect