From 2b480a63f2ca06b6b39d296c65b35267f8f4f1d0 Mon Sep 17 00:00:00 2001
From: Ladd Hoffman <laddhoffman@gmail.com>
Date: Thu, 18 Apr 2024 14:12:50 -0500
Subject: [PATCH] make sepolia and mainnet hardhat networks optional

---
 README.md                  |  6 ++++++
 ethereum/hardhat.config.js | 20 ++++++++++++--------
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index a62eb1c..70fed24 100644
--- a/README.md
+++ b/README.md
@@ -107,6 +107,12 @@ or
 
         npm install
 
+1. Copy the example configuration file
+
+        cp .env.example .env
+
+1. In `.env`, set a value for `SEED_PHRASE` or `LOCAL_PRIVATE_KEY`
+
 1. Run a hardhat node
 
         npx hardhat node
diff --git a/ethereum/hardhat.config.js b/ethereum/hardhat.config.js
index b795b1b..8e0deb5 100644
--- a/ethereum/hardhat.config.js
+++ b/ethereum/hardhat.config.js
@@ -12,14 +12,18 @@ module.exports = {
         : [process.env.LOCAL_PRIVATE_KEY],
       chainId: 1337,
     },
-    sepolia: {
-      url: `https://sepolia.infura.io/v3/${process.env.INFURA_API_KEY}`,
-      accounts: [process.env.SEPOLIA_PRIVATE_KEY],
-    },
-    mainnet: {
-      url: `https://mainnet.infura.io/v3/${process.env.INFURA_API_KEY}`,
-      accounts: [process.env.MAINNET_PRIVATE_KEY],
-    },
+    ...process.env.SEPOLIA_PRIVATE_KEY ? {
+      sepolia: {
+        url: `https://sepolia.infura.io/v3/${process.env.INFURA_API_KEY}`,
+        accounts: [process.env.SEPOLIA_PRIVATE_KEY],
+      },
+    } : {},
+    ...process.env.MAINNET_PRIVATE_KEY ? {
+      mainnet: {
+        url: `https://mainnet.infura.io/v3/${process.env.INFURA_API_KEY}`,
+        accounts: [process.env.MAINNET_PRIVATE_KEY],
+      },
+    } : {},
   },
   etherscan: {
     apiKey: {