From 549168cc4d0d3d18b12caa70bf5c58f4bcdc0175 Mon Sep 17 00:00:00 2001
From: Richard Moore <github@ricmoo.com>
Date: Thu, 11 Aug 2022 15:03:02 -0400
Subject: [PATCH] Added finalized and safe blockTags (#3091).

---
 packages/providers/src.ts/formatter.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/packages/providers/src.ts/formatter.ts b/packages/providers/src.ts/formatter.ts
index b8003da65..89051979e 100644
--- a/packages/providers/src.ts/formatter.ts
+++ b/packages/providers/src.ts/formatter.ts
@@ -250,8 +250,10 @@ export class Formatter {
 
         if (blockTag === "earliest") { return "0x0"; }
 
-        if (blockTag === "latest" || blockTag === "pending") {
-            return blockTag;
+        switch (blockTag) {
+            case "earliest": return "0x0";
+            case "latest": case "pending": case "safe": case "finalized":
+                return blockTag;
         }
 
         if (typeof(blockTag) === "number" || isHexString(blockTag)) {