@delvtech/hyperdrive-appconfig

Pre-generated metadata for applications that use Hyperdrive.

Note: The data schema in this package may change at any time, and semantic versioning is not strictly enforced.

Table of Contents

• @delvtech/hyperdrive-appconfig
• Table of Contents
• Installation
• Example Usage
• Building the package
• Selector Functions
  • findBaseToken
  • findHyperdriveConfig
  • findToken
• Utility Functions
  • isMainnetChain

Installation

# npm
npm install @delvtech/hyperdrive-appconfig

# pnpm
pnpm add @delvtech/hyperdrive-appconfig

# Yarn
yarn add @delvtech/hyperdrive-appconfig

Example Usage

import { appConfig, findBaseToken } from "@delvtech/hyperdrive-appconfig";

// 1. Grab the first hyperdrive in the app config
const firstHyperdrive = appConfig.hyperdrives[0];

// 2. Lookup its base token
const baseToken = findBaseToken({
  hyperdriveChainId: firstHyperdrive.chainId,
  hyperdriveAddress: firstHyperdrive.address,
  appConfig,
});

// 3. Access token metadata
const { name, symbol, decimals, iconUrl } = baseToken;

Building the package

1. Add .env variables for chains where Hyperdrive is deployed
2. Run the appropriate, eg: gen:local or gen:cloudchain script (see package.json)
3. Run the build script.

Note: The generated/ folder is checked into the repo. You'll want to regenerate the app configs whenever there are new addresses to obtain metadata for.

Once generated, build the package to make it available to other projects in the monorepo.

Selector Functions

This package exports several selector functions to help you find specific configurations within the app config. Here's a breakdown of each function:

findBaseToken

Finds the base token configuration for a given Hyperdrive instance.

Inputs:

• hyperdriveChainId: The chain ID of the Hyperdrive instance
• hyperdriveAddress: The address of the Hyperdrive instance
• appConfig: The entire app configuration object

Output: The TokenConfig object for the base token.

Errors: This will throw an error if the base token cannot be found.

Example:

import { appConfig, findBaseToken } from "@delvtech/hyperdrive-appconfig";

const firstHyperdrive = appConfig.hyperdrives[0];

const baseToken = findBaseToken({
  hyperdriveChainId: firstHyperdrive.chainId,
  hyperdriveAddress: firstHyperdrive.address,
  appConfig,
});

const { name, symbol, decimals, iconUrl, ... } = baseToken;

findHyperdriveConfig

Finds the Hyperdrive configuration for a given chain ID and address.

Inputs:

• hyperdriveChainId: The chain ID of the Hyperdrive instance
• hyperdriveAddress: The address of the Hyperdrive instance
• hyperdrives: The hyperdrives list on the appConfig object

Output: The HyperdriveConfig object for the specified Hyperdrive instance.

Example:

import {
  appConfig,
  findHyperdriveConfig,
} from "@delvtech/hyperdrive-appconfig";

const hyperdriveConfig = findHyperdriveConfig({
  hyperdriveChainId: 1,
  hyperdriveAddress: "0x...",
  hyperdrives: appConfig.hyperdrives,
});

const { name, poolConfig, initializationBlock, withdrawOptions, ... } =
  hyperdriveConfig;

findToken

Finds the token configuration for a given chain ID and token address.

Note: When retrieving the base token for a Hyperdrive, it's recommended to use findBaseToken instead of findToken. findBaseToken is specifically designed for Hyperdrive configurations and provides more comprehensive functionality. It not only attempts to resolve the base token directly but also handles cases where a fallback base token is specified. This ensures you always get the correct token configuration for the Hyperdrive, even in complex scenarios.

Inputs:

• chainId: The chain ID of the token
• tokenAddress: The address of the token
• tokens: The tokens list on the appConfig object

Output: The TokenConfig object for the specified token, or undefined if not found.

Example:

import { appConfig, findToken } from "@delvtech/hyperdrive-appconfig";

const token = findToken({
  chainId: 1,
  tokenAddress: "0x...",
  tokens: appConfig.tokens,
});

const { name, symbol, decimals, iconUrl, ... } = token;

Utility Functions

isMainnetChain

Determines if a given chain ID corresponds to a mainnet chain. This includes any mainnet chain, such as Ethereum Mainnet, Linea, Base, etc.

Input:

• chainId: The chain ID to check

Output: A boolean indicating whether the chain is a mainnet chain

Example:

import { appConfig, isMainnetChain } from "@delvtech/hyperdrive-appconfig";

const firstHyperdrive = appConfig.hyperdrives[0];

const isMainnetHyperdrive = isMainnetChain(firstHyperdrive.chainId);

const firstToken = appConfig.tokens[0];
const isMainnetToken = isMainnetChain(firstToken.chainId);