EZ Wallet Implementation Sample

How to implement EZ Wallet in 4 steps

Step 1: Read the content of EZ Wallet connection json file
ステップ1: EZ Wallet 接続 json ファイルの内容を読み取る

Step 2: Get the encrypt key of a user, based on the user's address and EZ Wallet API key
ステップ2: ユーザーのアドレスとEZ Wallet APIキーに基づいて、ユーザーの暗号化キーを取得する

Step 3: Get the private key of the user by decrypting "userData", based on the user's encrypted key
ステップ3: ユーザーの暗号化キーに基づいて、"userData"を復号化してユーザーの秘密鍵を取得する

Step 4: To execute a transaction on the blockchain, use the user's private key to create a Web3 wallet then execute eth_signMessage
ステップ4: ブロックチェーン上でトランザクションを実行するため、ユーザーの秘密鍵を使用してWeb3ウォレットを作成し、eth_signMessageを実行する

Environment Setup

Information Using In This Sample

• Sample ezwallet json file using at Step 1

  • Option 1: Using ezwallet json file at /public/ezwallet-file-sample.json

    {
      "userUrl":"https://ezwallet.keyring.app/demo/my-page/0x9380B41754634056277a763ed9e4d9AFe2007041",
      "userAddress":"0x9380B41754634056277a763ed9e4d9AFe2007041",
      "userData":"U2FsdGVkX18U5403dqbMop0iEOzsfX0H/UVfK2oYWq5Iwf4BkERg35hXZICPQd370oFxuYwmyxK2yTk7KGFE9oD6YOyWXXKu4zJ7DboT7uDjIMeqA56IzcEqC9wFsn0o"
    }

  • Option 2: Create a ezwallet json file by yourself at This page  

• EZ Wallet API key using at Step 2

  pRPaMF07ERrMXqjBTyglpyMkT5eLKcB3

Running the app in development

Required Node.js version >= 12.22.0

• Clone the repo and change the directory

  git clone https://github.com/bacoor-hb/ezwallet-implementation-sample.git
  cd ezwallet-implementation-sample

• Install npm packages

  yarn

• Create your .env.local file on root folder with this content

  NEXT_PUBLIC_EZWALLET_API=https://api-airdropband.keyring.app/service/v1
  NEXT_PUBLIC_EZWALLET_API_KEY=pRPaMF07ERrMXqjBTyglpyMkT5eLKcB3

• Start app with your custom port

  yarn dev --port 3003

• Open http://localhost:3003 with your browser to see the result.