From 8cf4b3cf4598f4f3643d5ebe9c366466d398cb83 Mon Sep 17 00:00:00 2001
From: Richard Moore <github@ricmoo.com>
Date: Thu, 23 Apr 2020 08:13:53 -0400
Subject: [PATCH] Work-around for Cloudflare not offering eth_blockNumber.

---
 packages/providers/src.ts/cloudflare-provider.ts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/providers/src.ts/cloudflare-provider.ts b/packages/providers/src.ts/cloudflare-provider.ts
index 8e163eed4..b2c5f8484 100644
--- a/packages/providers/src.ts/cloudflare-provider.ts
+++ b/packages/providers/src.ts/cloudflare-provider.ts
@@ -28,4 +28,15 @@ export class CloudflareProvider extends UrlJsonRpcProvider {
 
         return host;
     }
+
+    async perform(method: string, params: any): Promise<any> {
+        // The Cloudflare provider does not support eth_blockNumber,
+        // so we get the latest block and pull it from that
+        if (method === "getBlockNumber") {
+            const block = await super.perform("getBlock", { blockTag: "latest" });
+            return block.number;
+        }
+
+        return super.perform(method, params);
+    }
 }