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package context
import "context"
type versionKey struct{}
func (versionKey) String() string { return "version" }
// WithVersion stores the application version in the context. The new context
// gets a logger to ensure log messages are marked with the application
// version.
func WithVersion(ctx context.Context, version string) context.Context {
ctx = context.WithValue(ctx, versionKey{}, version)
// push a new logger onto the stack
return WithLogger(ctx, GetLogger(ctx, versionKey{}))
}
// GetVersion returns the application version from the context. An empty
// string may returned if the version was not set on the context.
func GetVersion(ctx context.Context) string {
return GetStringValue(ctx, versionKey{})
}
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