Frontend Withdraw

Frontend Withdraw

withdraw()

withdraw() is a function from privacycash/utils used to withdraw SOL from the PrivacyCash protocol to a specified recipient address.

Parameters

The withdraw() function takes a configuration object with the following properties:

Parameter	Type	Description
amount_in_lamports	number	The amount of SOL to withdraw, specified in lamports.
connection	Connection	Solana web3 connection object.
encryptionService	EncryptionService	An instance of the EncryptionService used for decrypting UTXO data.
keyBasePath	string	The base path for loading circuit zkeys (e.g., '/circuit2').
publicKey	PublicKey	The owner’s Solana public key.
storage	Storage	A storage object that implements the Web Storage API (e.g., localStorage).
recipient	PublicKey	The Solana address that will receive the withdrawn funds.
lightWasm	any	The Poseidon hasher instance (usually from @lightprotocol/hasher.rs).

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Example Usage

import { withdrawSPL } from "privacycash/utils"
import { PublicKey } from "@solana/web3.js"

const result = await withdrawSPL({
    mintAddress: 'EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v', // USDC
    base_units: 1_000_000, // 1 USDC
    connection: connection,
    encryptionService: encryptionService,
    keyBasePath: '/circuit2',
    publicKey: userPublicKey,
    storage: localStorage,
    recipient: new PublicKey('...'),
    lightWasm: hasher,
});

withdrawSPL()

withdrawSPL() is used to withdraw SPL tokens from the PrivacyCash protocol to a specified recipient address.

Parameters

The withdrawSPL() function takes a configuration object with the following properties:

Parameter	Type	Description
mintAddress	string	The mint address of the SPL token.
base_units	number	The amount of tokens to withdraw, specified in base units.
connection	Connection	Solana web3 connection object.
encryptionService	EncryptionService	An instance of the EncryptionService.
keyBasePath	string	The base path for loading circuit zkeys.
publicKey	PublicKey	The owner’s Solana public key.
storage	Storage	A storage object (e.g., localStorage).
recipient	PublicKey	The Solana address that will receive the withdrawn funds.
lightWasm	any	The Poseidon hasher instance.

Example Usage

import { withdraw } from "privacycash/utils"
import { PublicKey } from "@solana/web3.js"

const result = await withdraw({
    amount_in_lamports: 1_000_000_000, // 1 SOL
    connection: connection,
    encryptionService: encryptionService,
    keyBasePath: '/circuit2',
    publicKey: userPublicKey,
    storage: localStorage,
    recipient: new PublicKey('...'), // Recipient address
    lightWasm: hasher,
});