This could be a noob question. While going through the community, I have seen some questions regarding packed transaction. Can anyone explain what is a packed transaction?

  • it's the current transaction packed in binary form to be accessible in the transaction itself
    – confused00
    Nov 9, 2018 at 11:08
  • So, is that the output of 'abi_json_to_bin' RPC API?
    – Muhzin
    Nov 12, 2018 at 3:22

1 Answer 1


A packed transaction is one where the transaction structure is converted from the JSON format into a packed binary format. In the C++ code in EOS, this is done using Boost. The abi_json_to_bin method is used to pack smart contract method arguments into a packed format. Packing a transaction uses a similar process.

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