Ethers Simple Storage

This is a simple smart contract made by using ethers.js, which allows users to store a number and retrieve it. The users are mapped to the numbers respectively.

QuickStart

Clone this repo

git clone https://github.com/0xSanyam/ethers-simple-storage

Then install dependencies

yarn

Note: You'll notice in package.json we are using "solc": "0.8.7-fixed". Usually, you'll just be able to do "solc": "0.8.7" to get a specific version, but there is an issue with that one.

Usage

1. Run your ganache local chain, by hitting quickstart on your ganache application

   Save the workspace. This way, next time you open ganache you can start the workspace you've created, otherwise you'll have to redo all the steps below.

2. Copy the RPC SERVER from ganache, and place it into your .env file.

   

   .env Example:

   RPC_URL = http://0.0.0.0:8545
   

3. Hit the key on one of the accounts, and copy the key you see and place it into your .env file.

   

   

   .env Example:

   PRIVATE_KEY=15e691a01da28afab4445f2e5f0fafbcb81af237bcbe3b2e46ad968b3643fd73
   

4. Compile your code

   Run

   yarn compile
   

   You'll see files SimpleStorage_sol_SimpleStorage.abi and SimpleStorage_sol_SimpleStorage.bin be created.

5. Run your application

   node deploy.js
   

Deploying to a testnet

Make sure you have a metamask or other wallet, and export the private key.

IMPORTANT

Use a Metamask that doesn't have any real funds in it. Just in case you accidentally push your private key to a public place.

1. Export your private key and place it in your .env file, as done above.

2. Go to Alchemy and create a new project on the testnet of choice (e.g. Rinkeby)

3. Grab your URL associated with the testnet, and place it into your .env file.

4. Make sure you have testnet ETH in your account. You should get testnet ETH for the same testnet that you made a project in Alchemy.

5. Run

   node deploy.js
   

   

   ts-node deploy.ts