# start
```
npm install
npm run start ${port} // default: 12345
```

# api
```
1, /checkPayment/eth
[request]
method:post
params:coin string, address string, amount float64, ts uint64 (request-body)

[response]
success: {code:0, result:true, data:array[]{
      "blockNumber": "23088543",
      "timeStamp": "1754561951",
      "hash": "0x887ba171af3ed43cec6dfaef5f0379e2718cdc91a538eea7173947461dbcfd90",
      "nonce": "0",
      "blockHash": "0x5752c8fc343db877853c76aa14ecdfa6aa19bc9f273e1df715cd03020395152f",
      "from": "0xfdd78d01030956dc417a3057b205159490b3919e",
      "contractAddress": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
      "to": "0xa9d1e08c7793af67e9d92fe308d5697fb81d3e43",
      "value": "1100000000",
      "tokenName": "USDC",
      "tokenSymbol": "USDC",
      "tokenDecimal": "6",
      "transactionIndex": "110",
      "gas": "45746",
      "gasPrice": "2240053599",
      "gasUsed": "40348",
      "cumulativeGasUsed": "16503510",
      "input": "deprecated",
      "methodId": "0xa9059cbb",
      "functionName": "transfer(address _to, uint256 _value)",
      "confirmations": "4768"
    }, ... }

error: {code:-1, result:false, data: array[]} // 未转账
       {code:-2, result:false, data: array[]} // coin参数不支持
```