Examples

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Aave

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Aave V3へUSDCを供給

このセッションでは、dAppがユーザーウォレットの代理でArbitrum上のAave V3プールに最大100 USDCを24時間供給できます。 供給はユーザーウォレットの代理のみ可能です。

import { type ExplicitSessionParams } from "@0xsequence/connect";

export const USDC_ADDRESS_ARBITRUM = '0xaf88d065e77c8cC2239327C5EDb3A432268e5831'
export const AAVE_V3_POOL_ADDRESS_ARBITRUM = '0x794a61358D6845594F94dc1DB02A252b5b4814aD'

const aaveSupplySession: ExplicitSessionParams = {
    chainId: 42161,
    nativeTokenSpending: {
        valueLimit: 0n,
    },
    expiresIn: {
        hours: 24,
    },
    permissions: [
        createContractPermission({
            address: AAVE_V3_POOL_ADDRESS_ARBITRUM,
            functionSignature: 'function supply(address asset, uint256 amount, address onBehalfOf, uint16 referralCode)',
            rules: [
                {
                    param: 'asset',
                    type: 'address',
                    condition: 'EQUAL',
                    value: USDC_ADDRESS_ARBITRUM,
                },
                {
                    param: 'onBehalfOf',
                    type: 'address',
                    condition: 'EQUAL',
                    value: {userWalletAddress},
                },
                {
                    param: 'amount',
                    type: 'uint256',
                    condition: 'LESS_THAN_OR_EQUAL',
                    value: parseUnits('100', 6),
                },
            ],
        }),
    ],
};

​

AaveプールからUSDCを引き出す

このセッションでは、dAppがユーザーウォレットの代理でArbitrum上のAave V3プールから最大100 USDCを24時間引き出せます。 引き出し先はユーザーのウォレットアドレスのみです。

import { type ExplicitSessionParams } from "@0xsequence/connect";

export const USDC_ADDRESS_ARBITRUM = '0xaf88d065e77c8cC2239327C5EDb3A432268e5831'
export const AAVE_V3_POOL_ADDRESS_ARBITRUM = '0x794a61358D6845594F94dc1DB02A252b5b4814aD'

const aaveWithdrawSession: ExplicitSessionParams = {
    chainId: 42161,
    nativeTokenSpending: {
        valueLimit: 0n,
    },
    expiresIn: {
        hours: 24,
    },
    permissions: [
        createContractPermission({
            address: '0x...',
            functionSignature: 'function withdraw(address asset, uint256 amount, address to)',
            rules: [
                {
                    param: 'asset',
                    type: 'address',
                    condition: 'EQUAL',
                    value: USDC_ADDRESS_ARBITRUM,
                },
                {
                    param: 'amount',
                    type: 'uint256',
                    condition: 'LESS_THAN_OR_EQUAL',
                    value: parseUnits('100', 6),
                },
                {
                    param: 'to',
                    type: 'address',
                    condition: 'EQUAL',
                    value: {userWalletAddress},
                },
            ],
        }),
    ],
};

​

AaveへETHを供給

このセッションでは、dAppがユーザーウォレットの代理でArbitrum上のAave V3プールに最大0.1 ETHを24時間供給できます。 供給はユーザーウォレットの代理のみで、dApp自身のポジションを増やすことはできません。

import { type ExplicitSessionParams } from "@0xsequence/connect";

export const AAVE_V3_WRAPPED_TOKEN_GATEWAY_ADDRESS_ARBITRUM = '0x794a61358D6845594F94dc1DB02A252b5b4814aD'
export const AAVE_V3_POOL_ADDRESS_ARBITRUM = '0x794a61358D6845594F94dc1DB02A252b5b4814aD'

const aaveSupplyETHSession: ExplicitSessionParams = {
    chainId: 42161,
    nativeTokenSpending: {
        valueLimit: parseEther('0.1'),
    },
    expiresIn: {
        hours: 24,
    },
    permissions: [
        createContractPermission({
            address: AAVE_V3_WRAPPED_TOKEN_GATEWAY_ADDRESS_ARBITRUM,
            functionSignature: 'function depositETH(address pool, address onBehalfOf, uint16 referralCode)',
            rules: [
                {
                    param: 'pool',
                    type: 'address',
                    condition: 'EQUAL',
                    value: AAVE_V3_POOL_ADDRESS_ARBITRUM
                },
                {
                    param: 'onBehalfOf',
                    type: 'address',
                    condition: 'EQUAL',
                    value: {userWalletAddress},
                }
            ]
        }),
    ],
};

​

AaveからUSDCを借りる

このセッションでは、dAppがユーザーウォレットの代理でArbitrum上のAave V3プールから最大100 USDCを24時間借りることができます。 借り入れはユーザーウォレットの代理のみ可能です。

import { type ExplicitSessionParams } from "@0xsequence/connect";

export const USDC_ADDRESS_ARBITRUM = '0xaf88d065e77c8cC2239327C5EDb3A432268e5831'
export const AAVE_V3_POOL_ADDRESS_ARBITRUM = '0x794a61358D6845594F94dc1DB02A252b5b4814aD'

const aaveBorrowSession: ExplicitSessionParams = {
    chainId: 42161,
    nativeTokenSpending: {
        valueLimit: 0n,
    },
    expiresIn: {
        hours: 24,
    },
    permissions: [
        createContractPermission({
            address: AAVE_V3_POOL_ADDRESS_ARBITRUM,
            functionSignature: 'function borrow(address asset, uint256 amount, uint256 interestRateMode, uint16 referralCode, address onBehalfOf)',
            rules: [
                {
                    param: 'asset',
                    type: 'address',
                    condition: 'EQUAL',
                    value: USDC_ADDRESS_ARBITRUM,
                },
                {
                    param: 'amount',
                    type: 'uint256',
                    condition: 'LESS_THAN_OR_EQUAL',
                    value: parseUnits('100', 6), // 100 USDC
                },
                {
                    param: 'onBehalfOf',
                    type: 'address',
                    condition: 'EQUAL',
                    value: {userWalletAddress},
                }
            ],
        }),
    ],
};