fhEVM
WebsiteLibrariesProduct & ServicesDevelopersSupport
0.4
0.4
  • Welcome to fhEVM
  • Getting Started
    • What is fhEVM
    • Connecting to Zama Devnet
    • Using Zama Faucet
    • Local dev node
    • Whitepaper
  • Fundamentals
    • Write contract
      • Using Hardhat
      • Using Remix
      • Other development environment
    • Use encrypted types
    • Operations on encrypted types
    • Branching in FHE
    • Decrypt and reencrypt
    • Generate random number
    • Contracts standard library
  • Guides
    • Gas estimation
    • Common pitfalls and best practises
    • How can I break a loop ?
    • Encrypt an input
    • Reencryption
    • Use the CLI
    • Build a web application
    • Build with Node
    • Common webpack errors
  • Tutorials
    • See all tutorials
    • Write confidential smart contract with fhEVM
  • References
    • API Function specifications
    • Repositories
  • Developer
    • Contributing
    • Development roadmap
    • Release note
    • Feature request
    • Bug report
Powered by GitBook

Libraries

  • TFHE-rs
  • Concrete
  • Concrete ML
  • fhEVM

Developers

  • Blog
  • Documentation
  • Github
  • FHE resources

Company

  • About
  • Introduction to FHE
  • Media
  • Careers
On this page
  • Setup
  • Faucet

Was this helpful?

Export as PDF
  1. Getting Started

Local dev node

PreviousUsing Zama FaucetNextWrite contract

Last updated 1 year ago

Was this helpful?

Setup

We provide a docker image to spin up a fhEVM node for local development.

docker run -i -p 8545:8545 -p 8546:8546 --rm --name fhevm ghcr.io/zama-ai/ethermint-dev-node:v0.4.2
Type
URL

JSON-RPC

http://127.0.0.1:8545

Websocket

http://127.0.0.1:8546

However, we advise developers to use directly pnpm fhevm:start or npm run fhevm:start commands available within the , instead of the previous command, as this will launch a bash script which will also deploy automatically the oracle contract and launch the oracle relayer service, which are needed for asynchronous decryption requests.

WARNING: > OracleCaller.sol must be imported at least once in one of your smart contracts if you wish to use the recommended fhevm:start command, or else the bash script will emit an error and decryptions would fail. This is needed because hardhat needs to compile the oracle predeploy contract before your initial deployment. This can be done simply by adding the following import at the top of any of the smart contracts used in your project: import "fhevm/oracle/OracleCaller.sol";

Faucet

If you need to get coins for a specific wallet, you can use the faucet as follow:

docker exec -i fhevm faucet 0xa5e1defb98EFe38EBb2D958CEe052410247F4c80
hardhat template