From 3f0b6803f7290f7291dddc0030338e65bc6cc394 Mon Sep 17 00:00:00 2001
From: Denis Carriere <carriere.denis@gmail.com>
Date: Fri, 31 May 2024 17:52:14 +0200
Subject: [PATCH] fix parseTimestamp number fixes:
 https://github.com/pinax-network/substreams-sink-csv/issues/32

---
 README.md                  |  1 +
 package.json               |  2 +-
 src/applyReservedFields.ts | 11 ++++++++++-
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index efb2c0d..f1a84b6 100644
--- a/README.md
+++ b/README.md
@@ -126,6 +126,7 @@ Additionally, `*.clock`, `*.session` & `*.cursor` files are generated to keep tr
 eth.substreams.pinax.network-3b180e1d2390afef1f22651581304e04245ba001-graph_out-block_meta.csv
 eth.substreams.pinax.network-3b180e1d2390afef1f22651581304e04245ba001-graph_out.clock
 eth.substreams.pinax.network-3b180e1d2390afef1f22651581304e04245ba001-graph_out.cursor
+eth.substreams.pinax.network-3b180e1d2390afef1f22651581304e04245ba001-graph_out.session
 ```
 
 ### CLI Help
diff --git a/package.json b/package.json
index 9324c49..5610165 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-    "version": "0.3.1",
+    "version": "0.3.2",
     "name": "substreams-sink-csv",
     "description": "Substreams Sink CSV",
     "type": "module",
diff --git a/src/applyReservedFields.ts b/src/applyReservedFields.ts
index 5e27a2a..a180ab1 100644
--- a/src/applyReservedFields.ts
+++ b/src/applyReservedFields.ts
@@ -30,8 +30,17 @@ export function applyReservedFields( values: Record<string, unknown>, meta: Meta
     if ( !values["timestamp"] ) values["timestamp"] = timestamp;
 
     // exception parsing timestamp
-    if ( values["timestamp"] ) values["timestamp"] = parseTimestamp(Timestamp.fromDate(new Date(values["timestamp"] as string)));
+    if ( values["timestamp"] ) {
+        // parse UTC string to timestamp
+        if ( !isNumber(values["timestamp"]) ) {
+            values["timestamp"] = parseTimestamp(Timestamp.fromDate(new Date(values["timestamp"] as string)));
+        }
+    }
     else values["timestamp"] = timestamp;
 
     return values;
+}
+
+function isNumber(value: unknown): value is number {
+    return !isNaN(Number(value));
 }
\ No newline at end of file