@bandada/utils

Bandada utils

General Bandada utility functions.

👥 Contributing   |   🤝 Code of conduct   |   🔎 Issues   |   🗣️ Chat & Support

This package provides simple utility functions that can be used by Bandada itself or externals.

🛠 Install

npm or yarn

Install the @bandada/utils package with npm:

npm i @bandada/utils

or yarn:

yarn add @bandada/utils

📜 Usage

# request(url: string, config?: AxiosRequestConfig): Promise<any>

Makes a request using Axios.

import { request } from "@bandada/utils"

const url = "https://api.bandada.pse.dev/groups"
const config = {
    headers: {
        "Content-Type": "application/json"
    },
    baseURL: "https://api.bandada.pse.dev"
}
const group = await request(url, config)

# shortenAddress(address: string, chars: number): string

Returns a shorter address.

import { shortenAddress } from "@bandada/utils"

const address = shortenAddress("0x1234567890123456789012345678901234567890")

# getProvider(network: Network, apiKey?: string): JsonRpcProvider

Returns the provider to communicate with the blockchain.

import { getProvider } from "@bandada/utils"

const provider = getProvider("localhost")

# getContract(contractName: ContractName, network: Network, privateKeyOrSigner?: string | Signer, apiKey?: string): Contract

Returns an Ethers contract.

import { getContract } from "@bandada/utils"

const contractName = "Semaphore"
const network = "localhost"
const contract = getContract(contractName, network)

# getSemaphoreContract(network: Network, privateKeyOrSigner?: string | Signer, apiKey?: string): SemaphoreContract

Returns a new instance of the SemaphoreContract class.

import { getSemaphoreContract } from "@bandada/utils"

const semaphore = getSemaphoreContract("localhost")

# getBandadaContract(network: Network, privateKeyOrSigner?: string | Signer, apiKey?: string): BandadaContract

Returns a new instance of the BandadaContract class.

import { getBandadaContract } from "@bandada/utils"

const bandada = getBandadaContract("localhost")

# getWallet(privateKey: string, network?: Network, apiKey?: string): JsonRpcProvider

Returns an Ethers wallet.

import { getWallet } from "@bandada/utils"

const privateKey =
    "0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80"
const wallet = getWallet(privateKey)

# getContractAddresses(networkName: Network): { Bandada: string, Semaphore: string, BandadaSemaphore: string }

Returns the contract addresses for the Bandada, Semaphore and BandadaSemaphore smart contracts.

import { getContractAddresses } from "@bandada/utils"

const addresses = getContractAddresses("sepolia")

# blockchainCredentialSupportedNetworks

Returns the list of supported blockchain networks.

import { blockchainCredentialSupportedNetworks } from "@bandada/utils"

const networks = blockchainCredentialSupportedNetworks
const id = blockchainCredentialSupportedNetworks.find("sepolia")
const name = blockchainCredentialSupportedNetworks.find("Sepolia")

# easCredentialSupportedNetworks

Returns the list of supported EAS attestations networks. List of supported networks can be found here.

import { easCredentialSupportedNetworks } from "@bandada/utils"

const networks = easCredentialSupportedNetworks
const id = easCredentialSupportedNetworks.find("sepolia")
const name = easCredentialSupportedNetworks.find("Ethereum (Sepolia)")