Good day for all readers!
I have api service which needs key for some decrypt issues. Key calculates all time when I make request. That is wrong from an architectural point of view.
The option with environments (.env, viper...) drops because, in the future, I want to bring out this module to a separate library.
Hint me, how it is possible without using environments to calculate the key when starting the application and use it until stopping the application?
CodePudding user response：
If you are sure you need a global variable, you can do this:
package main
var globalVar string = "My string"
func init(){
globalVar = "The new value of the variable"
}
func main(){
println(globalVar)
}
CodePudding user response：
A global var starts with a capital, so it is reachable from within other packages.
But... it's actually bad behaviour, because those other packages can change it.
Having a non capital one, still means that functions in the same package can change it.
Perhaps you can use a constant?
or make a singleton variable, see :