## 一、交易信息获取 ### 1.1 合约事件例子定义 举例，比如合约中事件如下：（以下内容均使用该事件例子） “` event Transfer(address indexed from, address indexed to, uint256 value); “` – 事件名称：Transfer – 事件的参数：address, address, uint256 – 注意：此事件的from和to参数前有indexed标记，value没有indexed标记 ### 1.2
web3调用中文文档：https://www.wenjiangs.com/doc/pr2nvcat curl 调用： eth_getTransactionReceipt 注意：getTransaction返回结果中包含input，而getTransactionReceipts返回结果中包含logs。 若input=0x则为非合约调用，否则为合约方法调用。 以合约方法function transfer(address to, uint tokens) 为例; input数据分为3个部分： 例如：a9059cbb，具体可参见：
curl -s -H "Content-Type: application/json" -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":["0xae2a33da8396a6bc40e874b0f32b9967113a3dbf071ab1290c44c62d86873d36"],"id":1}' http://127.0.0.1:8545{ "jsonrpc": "2.0", "id": 1, "result": { "blockHash": "0xb0d0e3b6c5e59b7b3e7e16701f6d6cb0c3c93487415b03839e88b3f7a241c528", "blockNumber": "0xd19505", "contractAddress": null, "cumulativeGasUsed": "0x6c847e", "effectiveGasPrice": "0x274daee580", "from": "0xb8262c6a2dcabd92a77df1d5bd074afd07fc5829", "gasUsed": "0xa169", "logs": [ { "address": "0xdac17f958d2ee523a2206206994597c13d831ec7", "topics": [ "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef", "0x000000000000000000000000b8262c6a2dcabd92a77df1d5bd074afd07fc5829", "0x000000000000000000000000dac17f958d2ee523a2206206994597c13d831ec7" ], "data": "0x000000000000000000000000000000000000000000000000000000016512c902", "blockNumber": "0xd19505", "transactionHash": "0xae2a33da8396a6bc40e874b0f32b9967113a3dbf071ab1290c44c62d86873d36", "transactionIndex": "0x71", "blockHash": "0xb0d0e3b6c5e59b7b3e7e16701f6d6cb0c3c93487415b03839e88b3f7a241c528", "logIndex": "0xa0", "removed": false } ], "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000010000000000000000000000000000000000000000000000000000000008000000000080000000000000000000000000000000000000000000000000000000000000000000200000000000000010000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000080000000000000000000000000000000000000004000000002000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000200", "status": "0x1", "to": "0xdac17f958d2ee523a2206206994597c13d831ec7", "transactionHash": "0xae2a33da8396a6bc40e874b0f32b9967113a3dbf071ab1290c44c62d86873d36", "transactionIndex": "0x71", "type": "0x2" } }
二、input解析
2.1 input内容解析
三、logs解析
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