From 880773a269ebca6158dcbbd13c7ad96425c51e08 Mon Sep 17 00:00:00 2001
From: Tolga Ceylan <tolga.ceylan@gmail.com>
Date: Wed, 3 Jan 2018 16:17:40 -0800
Subject: [PATCH] fn: FN_DEADLINE description (#638)

---
 docs/writing.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docs/writing.md b/docs/writing.md
index 8d390023e..33367578c 100644
--- a/docs/writing.md
+++ b/docs/writing.md
@@ -34,6 +34,7 @@ You will also have access to a set of environment variables.
 * `FN_PATH` - the matched route, eg: `/hello`
 * `FN_METHOD` - the HTTP method for the request, eg: `GET` or `POST`
 * `FN_CALL_ID` - a unique ID for each function execution.
+* `FN_DEADLINE` - RFC3339 time stamp of the expiration (deadline) date of function execution.
 * `FN_FORMAT` - a string representing one of the [function formats](function-format.md), currently either `default` or `http`. Default is `default`.
 * `FN_MEMORY` - a number representing the amount of memory available to the call, in MB
 * `FN_TYPE` - the type for this call, currently 'sync' or 'async'