added endpoint to get an invoice's items only

1 files changed, 40 insertions, 0 deletions

diff --git a/invoice/controller.go b/invoice/controller.go
index 6bd5ad5..d3dd51c 100644
--- a/invoice/controller.go
+++ b/invoice/controller.go
@@ -192,6 +192,46 @@ func handleDelInvoice (ctx *gin.Context) {
 	})
 }
 
+// get items belonging to a certain invoice
+func handleGetInvoiceItems (ctx *gin.Context) {
+	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
+	if err != nil {
+		ctx.Error(e.ErrInvalidID)
+		ctx.Abort()
+		return
+	}
+
+	uId, ok := ctx.Get("UserID")
+	if !ok {
+		ctx.Error(e.ErrUnauthorized)
+		ctx.Abort()
+		return
+	}
+
+	userId := uId.(uint)
+
+
+	err = checkInvoiceOwnership(uint(id), userId)
+	if err != nil {
+		ctx.Error(err)
+		ctx.Abort()
+		return
+	}
+
+	var items []InvoiceItem
+	err = getInvoiceItems(&items, uint(id))
+	if err != nil {
+		ctx.Error(err)
+		ctx.Abort()
+		return
+	}
+
+	ctx.JSON(http.StatusOK, gin.H{
+		"message": "success",
+		"data": items,
+	})
+}
+
 func addItem (ctx *gin.Context) {
 	id, err := strconv.ParseUint(ctx.Param("id"), 10, 64)
 	if err != nil {