From 42b2638115fb3925af0e3e05475b632ca314f03c Mon Sep 17 00:00:00 2001
From: Gabriel Cardona <gabriel@avalabs.org>
Date: Mon, 1 Mar 2021 14:47:48 -0800
Subject: [PATCH] Print list of accounts, fund accounts and check balances.

---
 README.md          | 66 ++++++++++++++++++++++++++++++++++++++++++++++
 scripts/example.js |  2 +-
 2 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 971967b..f0c5b16 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,29 @@ You can define custom hardhat tasks in [hardhat.config.js](./hardhat.config.js).
 
 `yarn accounts` will print the list of accounts. `yarn balances` prints the list of AVAX account balances. As with other `yarn` scripts you can pass in a `--network` flag to hardhat tasks. For example, to check the balances of the accounts on the `avash` network.
 
+### Accounts
+
+Print a list of accounts.
+
+```zsh
+yarn accounts --network avash
+yarn run v1.22.4
+$ npx hardhat accounts --network avash
+0x8db97C7cEcE249c2b98bDC0226Cc4C2A57BF52FC
+0x9632a79656af553F58738B0FB750320158495942
+0x55ee05dF718f1a5C1441e76190EB1a19eE2C9430
+0x4Cf2eD3665F6bFA95cE6A11CFDb7A2EF5FC1C7E4
+0x0B891dB1901D4875056896f28B6665083935C7A8
+0x01F253bE2EBF0bd64649FA468bF7b95ca933BDe2
+0x78A23300E04FB5d5D2820E23cc679738982e1fd5
+0x3C7daE394BBf8e9EE1359ad14C1C47003bD06293
+0x61e0B3CD93F36847Abbd5d40d6F00a8eC6f3cfFB
+0x0Fa8EA536Be85F32724D57A37758761B86416123
+```
+
+### Balances
+
+Print a list of accounts and their corresponding AVAX balance.
 
 ```zsh
 yarn balances --network avash
@@ -110,6 +133,49 @@ $ npx hardhat balances --network avash
 
 Run it with `yarn send-avax`.
 
+## Funding Accounts
+
+[package.json](./package.json) has a `fund-cchain-addresses` script. [fund-cchain-addresses](./scripts/fund-cchain-addresses.js) will fund each of the C-Chain `accounts` on the `avash` network with 1000 AVAX.
+
+```json
+"scripts": {
+  ...
+  "fund-cchain-addresses": "npx hardhat run scripts/fund-cchain-addresses.js"
+}
+```
+
+This is a utility script which handles funding accounts on the C-Chain since it's a prerequisite for running smart contracts. It's currently hardcoded to use the `12345` or `avash` network.
+
+```zsh
+yarn fund-cchain-addresses
+yarn run v1.22.4
+$ npx hardhat run scripts/fund-cchain-addresses.js
+Exporting 1000 AVAX to each address on the C-Chain...
+2b75ae74ScLkWe5GVFTYJoP2EniMywkcZySQUoFGN2EJLiPDgp
+Importing AVAX to the C-Chain...
+2dyXcQGiCk1ckCX4Fs8nLgL8GJgsM72f9Ga13rX5v9TAguVJYM
+✨  Done in 4.07s.
+```
+
+You can confirm that it worked by running `yarn balance --network avash`.
+
+```zsh
+yarn balances --network avash
+yarn run v1.22.4
+$ npx hardhat balances --network avash
+0x8db97C7cEcE249c2b98bDC0226Cc4C2A57BF52FC has balance 1000000000000000000000
+0x9632a79656af553F58738B0FB750320158495942 has balance 1000000000000000000000
+0x55ee05dF718f1a5C1441e76190EB1a19eE2C9430 has balance 1000000000000000000000
+0x4Cf2eD3665F6bFA95cE6A11CFDb7A2EF5FC1C7E4 has balance 1000000000000000000000
+0x0B891dB1901D4875056896f28B6665083935C7A8 has balance 1000000000000000000000
+0x01F253bE2EBF0bd64649FA468bF7b95ca933BDe2 has balance 1000000000000000000000
+0x78A23300E04FB5d5D2820E23cc679738982e1fd5 has balance 1000000000000000000000
+0x3C7daE394BBf8e9EE1359ad14C1C47003bD06293 has balance 1000000000000000000000
+0x61e0B3CD93F36847Abbd5d40d6F00a8eC6f3cfFB has balance 1000000000000000000000
+0x0Fa8EA536Be85F32724D57A37758761B86416123 has balance 1000000000000000000000
+✨  Done in 0.62s.
+```
+
 ## Hardhat Help
 
 You can run `yarn hardhat` to list hardhat version, usage instructions, global options and available tasks.
diff --git a/scripts/example.js b/scripts/example.js
index 10027bf..849fccd 100644
--- a/scripts/example.js
+++ b/scripts/example.js
@@ -2,7 +2,7 @@ const { Contract } = require("ethers");
 const hre = require("hardhat");
 
 // TODO: Enter your deployed contract address
-const COIN_ADDR = "0xcB65daD78320a8d15Ad8a88001324e4e163ca534";
+const COIN_ADDR = "0x0000000000000000000000000000000000000000";
 
 /**
  * Empty. Try calling some functions here.