How do I access global variables in Go?

Accessing Global Variables in Go

You are attempting to declare a globally accessible variable outside of the main() function in Go, but are encountering an error. The appropriate approach depends on whether the variable should be constant or mutable.

For Non-Constant Variables

To declare a non-constant variable outside of a function and make it accessible within a package, use the following syntax:

var test = "A Test Value"

In this case, the lowercase t in the variable name indicates that it is only visible within the package (unexported).

Here's an example:

package apitest

import "fmt"

var sessionID string

func main() {
    // Check and update sessionID as needed...
}

For Constant Variables

For constants, use the const keyword instead of var. The syntax is:

const test = "A Test Value"

Constants must be given a value during declaration and cannot be changed later.

Additional Notes

• You can use init() function to initialize package-level variables before main() is run.

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