confirm readme.md

README.md

@@ -1,4 +1,41 @@
 # 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
 ```