I would like to invoke a smart contract function using Ethers library.
Since I have my own node I'm connecting using RPC connection and now I would like to invoke a
transfer function (of an ERC20 contract), which according to the documentation requires me to use a signer:
const provider = new ethers.providers.JsonRpcProvider(NODE_URL) const signer = provider.getSigner() // Read-Write; By connecting to a Signer, allows: // - Everything from Read-Only (except as Signer, not anonymous) // - Sending transactions for non-constant functions const erc20_rw = new ethers.Contract(erc20ContractAddress, abi, signer) const tx = await erc20_rw.transfer(targetAddress, amount)
My question is: Where should I provide my private key? I mean - the provider requires me to give only a node url and the signer is provided by the provider. I'm invoking a transfer, which defiantly should require me to provide a private key at some point. What am I missing?