How to find see GOPATH and configure go extension for VSC?

Question

go

could not import go.mongodb.org/mongo-driver/mongo (cannot find package "go.mongodb.org/mongo-driver/mongo" in any of 
/usr/lib/go-1.17/src/go.mongodb.org/mongo-driver/mongo (from $GOROOT)
/root/go/src/go.mongodb.org/mongo-driver/mongo (from $GOPATH))

There is main.go, which works, uses imported packages without errors. But apparently the extension itself, by default, looks into other directories. Actually how to set it up for the extension and how to see the current (correct) GOPATH?

Answer 1

Install it:
go get go.mongodb.org/mongo-driver/mongo