fix(logging): nil pointer (#205)

* fix(logging): nil pointer

* fix(logging): nil pointer

Author: Reasno

ctxmeta/ctxmeta.go

@@ -159,6 +159,9 @@ func (b *Baggage) Delete(key interface{}) (err error) {
 
 // Slice returns a slice of key/value pairs in the order in which they were set.
 func (b *Baggage) Slice() []KeyVal {
+	if b == nil {
+		return nil
+	}
 	s := <-b.c
 	defer func() { b.c <- s }()
 
@@ -169,6 +172,10 @@ func (b *Baggage) Slice() []KeyVal {
 
 // Map returns a map of key to value.
 func (b *Baggage) Map() map[string]interface{} {
+	if b == nil {
+		return nil
+	}
+
 	s := <-b.c
 	defer func() { b.c <- s }()
 

ctxmeta/ctxmeta_test.go

@@ -62,6 +62,9 @@ func TestContextMeta_ErrNoBaggae(t *testing.T) {
 
 	err = baggage.Delete("foo")
 	assert.ErrorIs(t, err, ErrNoBaggage)
+
+	assert.Nil(t, baggage.Slice())
+	assert.Nil(t, baggage.Map())
 }
 
 func TestContextMeta_ErrNotFound(t *testing.T) {

logging/log.go

@@ -113,6 +113,7 @@ func WithContext(logger log.Logger, ctx context.Context) log.Logger {
 	var args []interface{}
 
 	bag := ctxmeta.GetBaggage(ctx)
+
 	for _, kv := range bag.Slice() {
 		args = append(args, kv.Key, kv.Val)
 	}