Chainge Finance API TOOLS

Installation

yarn add @chainge/api-tool-sdk
or
npm install @chainge/api-tool-sdk

Usage

import ChaingeWorkbench from '@chainge/api-tool-sdk'

const chaingeWorkbench  = new ChaingeWorkbench({
    channel: 'chainge',
    globalChannelFeeRate: '0'
})

const params = {
    amount: '1000000000',
    symbol: 'USDT',
    fromChain: 'FSN',
    toChain: 'BNB',
}
const result = await chaingeWorkbench.getBridgeQuote(params, '0x42a6685ef29886Cbcb595Aa903f00dea0d1787d8')
// result
// {
//     "code": 0,
//     "msg": "success",
//     "data": {
//         "outAmount": "999.1",
//         "serviceFee": "0.6",
//         "gasFee": "0.3",
//         "feeUnit": "USDT",
//         "serviceFeeRate": "6",
//         "price": "1",
//         "proxy": "0x3668c219b1fa8fe8175158f6ce91ded36fde9152",
//         "contractMethod": "vaultOut",
//         "contractArgs": [
//             "0x8a20c13b42d7fe418f10f922f2cee06246c24269",
//             "1000000000",
//             true,
//             "0x636861696e67653a424e423a3078353564333938333236663939303539666637373534383532343639393930323762333139373935353a3078343261363638356566323938383643626362353935416139303366303064656130643137383764383a303a315f313030303030303030303030303030303030303030303b325f303b335f323b345f313030303030303030303030303030303030303030303b355f424e42"
//         ]
//     }
// }

const params = {
    fromAmount: '1000000000',
    fromTokenAddress: '0x8a20c13b42d7fe418f10f922f2cee06246c24269',
    fromDecimal: '6',
    fromChain: 'FSN',
    toTokenAddress: '0xb712d62fe84258292d1961b5150a19bc4ab49026',
    toDecimal: '18',
    toChain: 'ETH',
}
const result = await chaingeWorkbench.getAggregateQuote(params, '0x42a6685ef29886Cbcb595Aa903f00dea0d1787d8')
// result
// {
//     "code": 0,
//     "msg": "success",
//     "data": {
//         "outAmount": "28779.363396569997980623",
//         "miniOutAmount": "27340.39522674149808159185",
//         "serviceFee": "57.794085659999995953",
//         "gasFee": "59.88534777",
//         "feeUnit": "XCHNG",
//         "serviceFeeRate": "20",
//         "priceImpact": "0.48",
//         "isDirect": false,
//         "proxy": "0x3668c219b1fa8fe8175158f6ce91ded36fde9152",
//         "contractMethod": "vaultOut",
//         "contractArgs": [
//             "0x8a20c13b42d7fe418f10f922f2cee06246c24269",
//             "1000000000",
//             true,
//             "0x636861696e67653a4554483a3078623731326436326665383432353832393264313936316235313530613139626334616234393032363a3078343261363638356566323938383643626362353935416139303366303064656130643137383764383a3530303a315f32383737393336333339363536393939373938303632333b325f303b335f323b345f32373334303339353232363734313439383038313539323b355f46534e"
//         ]
//     }
// }


const params = {
    fromAmount: '1000000000',
    fromTokenAddress: '0xdac17f958d2ee523a2206206994597c13d831ec7',
    fromDecimal: '6',
    fromChain: 'ETH',
    toTokenAddress: '0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee',
    toDecimal: '18',
    toChain: 'ETH'
}
const result = await chaingeWorkbench.getAggregateQuote(params, '0x42a6685ef29886Cbcb595Aa903f00dea0d1787d8')
// result
// {
//     "code": 0,
//     "msg": "success",
//     "data": {
//         "outAmount": "0.378080592055128712",
//         "miniOutAmount": "0.37429978613457742488",
//         "serviceFee": "0",
//         "gasFee": "0",
//         "feeUnit": "ETH",
//         "serviceFeeRate": "10",
//         "priceImpact": "0.01",
//         "isDirect": true,
//         "proxy": "0x850d5097a9970dda56ef7067d79ca9ac5834450f",
//         "contractMethod": "swap",
//         "contractArgs": [
//             "0xdac17f958d2ee523a2206206994597c13d831ec7",
//             "1000000000",
//             "0x1111111254eeb25477b68fb85ed929f73a960582",
//             "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
//             "0x42a6685ef29886Cbcb595Aa903f00dea0d1787d8",
//             "374299786134577425",
//             "0xe449022e000000000000000000000000000000000000000000000000000000003b9aca000000000000000000000000000000000000000000000000000531c7ac200e611000000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000001a00000000000000000000000c7bbec68d12a0d1830360f8ec58fa599ba1b0e9bda12907d",
//             "0x636861696e67653a4554483a3078656565656565656565656565656565656565656565656565656565656565656565656565656565653a3078343261363638356566323938383643626362353935416139303366303064656130643137383764383a3130303a315f3337383038303539323035353132383731323b325f303b335f323b345f3337343239393738363133343537373432353b355f455448"
//         ]
//     }
// }

The proxy field indicates the contract you need to call. The contractMethod field specifies the method of the contract you need to invoke. The contractArgs field represents the parameters you need to pass to the contract method.