From 479e4290471cceeefa8e3da73519c1688918a233 Mon Sep 17 00:00:00 2001
From: Kumar Mantesh <kumar.mantesh007@gmail.com>
Date: Fri, 18 Sep 2020 22:16:49 +0530
Subject: [PATCH 1/2] expire an invoice belonging to a subaccount

---
 invoice/client.go | 7 +++++--
 invoice/params.go | 3 ++-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/invoice/client.go b/invoice/client.go
index 1c09dd89..3d28bce1 100644
--- a/invoice/client.go
+++ b/invoice/client.go
@@ -90,13 +90,16 @@ func (c *Client) ExpireWithContext(ctx context.Context, data *ExpireParams) (*xe
 	}
 
 	response := &xendit.Invoice{}
-
+	header := &http.Header{}
+	if data.ForUserID != "" {
+		header.Add("for-user-id", data.ForUserID)
+	}
 	err := c.APIRequester.Call(
 		ctx,
 		"POST",
 		fmt.Sprintf("%s/invoices/%s/expire!", c.Opt.XenditURL, data.ID),
 		c.Opt.SecretKey,
-		nil,
+		header,
 		nil,
 		response,
 	)
diff --git a/invoice/params.go b/invoice/params.go
index 21541a56..dff57460 100644
--- a/invoice/params.go
+++ b/invoice/params.go
@@ -77,5 +77,6 @@ func (p *GetAllParams) QueryString() string {
 
 // ExpireParams contains parameters for Expire
 type ExpireParams struct {
-	ID string `json:"id" validate:"required"`
+	ID        string `json:"id" validate:"required"`
+	ForUserID string `json:"-"`
 }

From 4f59fda237e30262d96bbfb13900b818a6cd3f7c Mon Sep 17 00:00:00 2001
From: Kumar Mantesh <kumar.mantesh007@gmail.com>
Date: Fri, 18 Sep 2020 23:06:29 +0530
Subject: [PATCH 2/2] corrected header in the tests

---
 invoice/invoice_test.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/invoice/invoice_test.go b/invoice/invoice_test.go
index a9bcc7f2..55e44b0a 100644
--- a/invoice/invoice_test.go
+++ b/invoice/invoice_test.go
@@ -184,7 +184,6 @@ func TestExpire(t *testing.T) {
 
 	for _, tC := range testCases {
 		t.Run(tC.desc, func(t *testing.T) {
-			var header *http.Header
 
 			apiRequesterMockObj.On(
 				"Call",
@@ -192,7 +191,7 @@ func TestExpire(t *testing.T) {
 				"POST",
 				xendit.Opt.XenditURL+"/invoices/123/expire!",
 				xendit.Opt.SecretKey,
-				header,
+				&http.Header{},
 				nil,
 				&xendit.Invoice{},
 			).Return(nil)