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tessl/npm-hardhat-deploy

Hardhat plugin providing comprehensive deployment system for Ethereum smart contracts with replicable deployments and enhanced testing capabilities.

Workspace
tessl
Visibility
Public
Created
Last updated
Describes
npmpkg:npm/hardhat-deploy@1.0.x

To install, run

npx @tessl/cli install tessl/npm-hardhat-deploy@1.0.0

index.mddocs/

Hardhat Deploy

Hardhat Deploy is a comprehensive Hardhat plugin that provides advanced deployment capabilities for Ethereum smart contracts. It enables replicable deployments across networks, enhanced testing with fixtures, proxy and diamond pattern support, named accounts for cleaner scripts, and automated contract verification.

Package Information

  • Package Name: hardhat-deploy
  • Package Type: npm
  • Language: TypeScript
  • Installation: 
    npm install hardhat-deploy
  • Peer Dependencies: 
    hardhat ^2.22.18

Core Imports

import "hardhat-deploy/type-extensions";

For deploy scripts and configuration:

import { HardhatRuntimeEnvironment } from "hardhat/types";
import { DeployFunction } from "hardhat-deploy/types";

For use in tests:

import { deployments, getNamedAccounts } from "hardhat";

Basic Usage

Configuration

Add to your 

hardhat.config.ts
:

import "hardhat-deploy";

export default {
  namedAccounts: {
    deployer: {
      default: 0, // Use first account as deployer
      1: "0x...", // Override for mainnet
    },
    user: {
      default: 1,
    },
  },
  networks: {
    localhost: {
      live: false,
      saveDeployments: true,
      tags: ["local"],
    },
  },
};

Deploy Script

Create 

deploy/001_deploy_contract.ts
:

import { HardhatRuntimeEnvironment } from "hardhat/types";
import { DeployFunction } from "hardhat-deploy/types";

const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
  const { deployments, getNamedAccounts } = hre;
  const { deploy } = deployments;
  const { deployer } = await getNamedAccounts();

  await deploy("MyContract", {
    from: deployer,
    args: ["constructor", "arguments"],
    log: true,
  });
};

func.tags = ["MyContract"];
export default func;

Using in Tests

import { deployments, getNamedAccounts } from "hardhat";

describe("MyContract", function () {
  beforeEach(async function () {
    await deployments.fixture(["MyContract"]);
  });

  it("should work", async function () {
    const { deployer } = await getNamedAccounts();
    const contract = await deployments.get("MyContract");
    // Test logic here
  });
});

Architecture

Hardhat Deploy extends the Hardhat Runtime Environment with several key components:

  • DeploymentsExtension: Main interface for deployment operations, contract interaction, and artifact management
  • Named Accounts: Named address mapping system for cleaner deployment scripts and tests
  • Deploy Scripts: Tagged deployment functions with dependency management and conditional execution
  • Test Fixtures: EVM snapshot-based testing framework for fast test execution
  • Proxy Management: Transparent and UUPS proxy deployment with automatic upgrade handling
  • Diamond Support: Full EIP-2535 diamond pattern implementation with facet management
  • Network Management: Multi-network deployment tracking with companion network support

Capabilities

Core Deployment

Contract deployment with tracking, redeployment detection, and comprehensive deployment options including proxy and diamond patterns.

interface DeploymentsExtension {
  deploy(name: string, options: DeployOptions): Promise<DeployResult>;
  deterministic(
    name: string,
    options: Create2DeployOptions
  ): Promise<{
    address: Address;
    implementationAddress?: Address;
    deploy(): Promise<DeployResult>;
  }>;
  fetchIfDifferent(
    name: string,
    options: DeployOptions
  ): Promise<{ differences: boolean; address?: string }>;
}

interface DeployOptions {
  from: string;
  contract?: string | ArtifactData;
  args?: any[];
  deterministicDeployment?: boolean | string;
  proxy?: boolean | string | ProxyOptions;
  libraries?: Libraries;
  skipIfAlreadyDeployed?: boolean;
  gasLimit?: string | number | BigNumber;
  gasPrice?: string | BigNumber;
  maxFeePerGas?: string | BigNumber;
  maxPriorityFeePerGas?: string | BigNumber;
  log?: boolean;
  autoMine?: boolean;
  waitConfirmations?: number;
}

interface DeployResult extends Deployment {
  newlyDeployed: boolean;
}

Core Deployment

Proxy Deployment

Deploy and upgrade transparent proxies with automatic implementation change detection and admin management.

interface ProxyOptions {
  owner?: Address;
  proxyContract?: string | ArtifactData;
  implementationName?: string;
  upgradeIndex?: number;
  execute?: {
    methodName: string;
    args: any[];
  } | {
    init: { methodName: string; args: any[] };
    onUpgrade?: { methodName: string; args: any[] };
  };
}

Proxy Deployment

Diamond Deployment

Full EIP-2535 diamond pattern support with automatic facet management and upgrade functionality.

interface DeploymentsExtension {
  diamond: {
    deploy(name: string, options: DiamondOptions): Promise<DeployResult>;
  };
}

interface DiamondOptions extends TxOptions {
  owner?: Address;
  facets: DiamondFacets;
  diamondContract?: string | ArtifactData;
  execute?: {
    methodName: string;
    args: any[];
  };
  deterministicSalt?: string;
}

type DiamondFacets = Array<string | FacetOptions>;

interface FacetOptions {
  name?: string;
  contract?: string | ArtifactData;
  args?: any[];
  libraries?: Libraries;
  deterministic?: boolean | string;
}

Diamond Deployment

Contract Interaction

Execute transactions and read contract state using deployed contract names with full type safety.

interface DeploymentsExtension {
  execute(
    name: string,
    options: TxOptions,
    methodName: string,
    ...args: any[]
  ): Promise<Receipt>;
  read(
    name: string,
    options: CallOptions,
    methodName: string,
    ...args: any[]
  ): Promise<any>;
  read(name: string, methodName: string, ...args: any[]): Promise<any>;
  rawTx(tx: SimpleTx): Promise<Receipt>;
}

interface TxOptions extends CallOptions {
  from: string;
  log?: boolean;
  autoMine?: boolean;
  waitConfirmations?: number;
}

Contract Interaction

Test Fixtures

Fast test execution using EVM snapshots with automatic deployment and state management.

interface DeploymentsExtension {
  fixture(
    tags?: string | string[],
    options?: {
      fallbackToGlobal?: boolean;
      keepExistingDeployments?: boolean;
    }
  ): Promise<{ [name: string]: Deployment }>;
  createFixture<T, O>(
    func: FixtureFunc<T, O>,
    id?: string
  ): (options?: O) => Promise<T>;
}

type FixtureFunc<T, O> = (
  env: HardhatRuntimeEnvironment,
  options?: O
) => Promise<T>;

Test Fixtures

Named Accounts

Address management system for cleaner deployment scripts and network-specific configurations.

interface HardhatRuntimeEnvironment {
  getNamedAccounts(): Promise<{ [name: string]: Address }>;
  getUnnamedAccounts(): Promise<string[]>;
  getChainId(): Promise<string>;
}

Named Accounts

Deployment Management

Store, retrieve, and manage deployment artifacts with comprehensive metadata tracking.

interface DeploymentsExtension {
  save(name: string, deployment: DeploymentSubmission): Promise<void>;
  get(name: string): Promise<Deployment>;
  getOrNull(name: string): Promise<Deployment | null>;
  delete(name: string): Promise<void>;
  all(): Promise<{ [name: string]: Deployment }>;
  run(
    tags?: string | string[],
    options?: {
      resetMemory?: boolean;
      deletePreviousDeployments?: boolean;
      writeDeploymentsToFiles?: boolean;
      export?: string;
      exportAll?: string;
    }
  ): Promise<{ [name: string]: Deployment }>;
  
  // Utility functions
  log(...args: any[]): void;
  getNetworkName(): string;
  getGasUsed(): number;
  
  // File operations
  readDotFile(name: string): Promise<string>;
  saveDotFile(name: string, content: string): Promise<void>;
  deleteDotFile(name: string): Promise<void>;
}

interface Deployment {
  address: Address;
  abi: ABI;
  receipt?: Receipt;
  transactionHash?: string;
  args?: any[];
  linkedData?: any;
  implementation?: string;
  facets?: Facet[];
  libraries?: Libraries;
}

Deployment Management

Contract Verification

Automated contract verification with Etherscan and Sourcify for source code transparency and public access.

function submitSources(
  deploymentName: string,
  options?: EtherscanVerificationOptions
): Promise<void>;

function submitSourcesToSourcify(
  deploymentName: string,
  options?: SourcifyVerificationOptions
): Promise<void>;

function etherscanVerify(options?: EtherscanVerificationOptions): Promise<void>;
function sourcifyVerify(options?: SourcifyVerificationOptions): Promise<void>;

interface EtherscanVerificationOptions {
  apiKey?: string;
  apiUrl?: string;
  license?: string;
  forceLicense?: boolean;
  solcInput?: boolean;
  sleep?: number;
}

interface SourcifyVerificationOptions {
  endpoint?: string;
  writeFailingMetadata?: boolean;
}

Contract Verification

Core Types

type Address = string;
type ABI = any[];
type Libraries = { [libraryName: string]: Address };

interface Receipt {
  from: Address;
  transactionHash: string;
  blockHash: string;
  blockNumber: number;
  gasUsed: BigNumber | string | number;
  contractAddress?: string;
  logs?: Log[];
  status?: number;
}

interface DeployFunction {
  (env: HardhatRuntimeEnvironment): Promise<void | boolean>;
  skip?: (env: HardhatRuntimeEnvironment) => Promise<boolean>;
  tags?: string[];
  dependencies?: string[];
  runAtTheEnd?: boolean;
  id?: string;
}

interface ArtifactData {
  abi: ABI;
  bytecode: string;
  deployedBytecode?: string;
  metadata?: string;
}