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Analysis of eth transaction record input

2022-02-03 20:56:27 【Q & A of Denglian community】

image.png How to parse input The parameters of ？



Take the answer 1：

First of all, I'm not sure what you need to analyze ？ Because reverse parsing is very unstable , Similar to the confused JS Code , Flexible after reverse recovery . One byte32 The data of , Can represent an address , It could be one byte256 The data of .

Unless you know the contract you're investigating ABI Interface .

I guess you need to parse Token Transfer transactions . If it needs to be parsed Token The transfer , It should be done by reading the event log .

Only successful transfer , Will generate the event log . If it's just to analyze the transaction Input Is incomplete . Such as ：

  1. The deal failed .
  2. To yes A contract , but A Internal automatic transfer to TokenB.

How to use event log parsing Token What about the transfer records I'll give you some information ：

  1. https://learnblockchain.cn/2018/12/19/8be8047936d2
  2. https://learnblockchain.cn/article/776
  3. https://learnblockchain.cn/question/29




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