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Milestone 7: Config Manager

Command

web3 config              # Show current config
web3 config init         # Interactive setup
web3 config get <key>    # Read a value (e.g. rpc.base)
web3 config set <key> <value>
web3 config path         # Print config file path

Config file

Stored at .web3-devkit/config.json:

{
  "defaultChain": "base",
  "chainType": "evm",
  "framework": "foundry",
  "rpc": {
    "base": "https://mainnet.base.org"
  },
  "wallet": {
    "type": "privateKey"
  }
}
Field Description
defaultChain Default network when -n is omitted (EVM id or Solana cluster)
chainType evm or solana
framework foundry, hardhat, or anchor
rpc Per-network RPC URLs
wallet.type privateKey, env, or hardware

Integration

When a config file exists, these commands use defaultChain and rpc.<network> automatically:

  • web3 deploy, web3 verify
  • web3 wallet balance|tokens
  • web3 network check, web3 rpc test
  • web3 monitor

RPC URLs from config are applied to RPC_URL / SOLANA_RPC_URL when not set in .env.

Examples

web3 config init
web3 config set defaultChain base
web3 config set rpc.base https://base-mainnet.g.alchemy.com/v2/KEY
web3 config get defaultChain
web3 deploy evm -y          # uses defaultChain + rpc from config