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使用旧 Rust 2015
9.0.1 | 2021年2月22日 |
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#5 in #vap
在 28 个包 (13 直接) 中使用
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vapabi
ABI(应用二进制接口),基本上是调用合约中的函数并获取数据的方式。
ABI确定诸如如何调用函数以及信息应从程序组件传递到下一个组件的哪种二进制格式等详细信息...
Ethereum 智能合约是字节码,EVM,在以太坊区块链上。在 EVM 中,一个合约中可能有多个函数。ABI 是必要的,这样您可以指定要调用合约中的哪个函数,以及确保函数将以您期望的格式返回数据。 了解更多
此库编码函数调用并解码它们的输出。
免责声明
此库旨在仅支持由最近版本 Solidity 生成的有效 ABIs。具体来说,我们不打算支持由于已知 Solidity 错误或未严格遵循规范的第三方库而导致无效的 ABIs。请确保在使用 ethabi
之前预处理您的 ABI,以防它不受支持。
安装
cargo install ethabi-cli
用法
Ethereum ABI coder.
Copyright 2016-2017 Parity Technologies (UK) Limited
Usage:
ethabi encode function <abi-path> <function-name-or-signature> [-p <param>]... [-l | --lenient]
ethabi encode params [-v <type> <param>]... [-l | --lenient]
ethabi decode function <abi-path> <function-name-or-signature> <data>
ethabi decode params [-t <type>]... <data>
ethabi decode log <abi-path> <event-name-or-signature> [-l <topic>]... <data>
ethabi -h | --help
Options:
-h, --help Display this message and exit.
-l, --lenient Allow short representation of input params.
Commands:
encode Encode ABI call.
decode Decode ABI call result.
function Load function from json ABI file.
params Specify types of input params inline.
log Decode event log.
示例
ethabi encode params -v bool 1
0000000000000000000000000000000000000000000000000000000000000001
--
ethabi encode params -v bool 1 -v string gavofyork -v bool 0
00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000096761766f66796f726b0000000000000000000000000000000000000000000000
--
ethabi encode params -v bool[] [1,0,false]
00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
--
ethabi encode params -v '(string,bool,string)' '(test,1,cyborg)'
00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000004746573740000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000066379626f72670000000000000000000000000000000000000000000000000000
--
ethabi encode function examples/test.json foo -p 1
[{
"type":"function",
"inputs": [{
"name":"a",
"type":"bool"
}],
"name":"foo",
"outputs": []
}]
455575780000000000000000000000000000000000000000000000000000000000000001
--
ethabi encode function examples/test.json foo(bool) -p 1
[{
"type":"function",
"inputs": [{
"name":"a",
"type":"bool"
}],
"name":"foo",
"outputs": []
}]
455575780000000000000000000000000000000000000000000000000000000000000001
--
ethabi encode function examples/test.json bar(bool) -p 1
[{
"type":"function",
"inputs": [{
"name":"a",
"type":"bool"
}],
"name":"foo",
"outputs": []
}]
6fae94120000000000000000000000000000000000000000000000000000000000000001
--
ethabi encode function examples/test.json bar(string):(uint256) -p 1
[{
"type":"function",
"inputs": [{
"type":"string"
}],
"name":"foo",
"outputs": [{
"type": "uint256"
}]
}]
d473a8ed000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000013100000000000000000000000000000000000000000000000000000000000000
--
ethabi decode params -t bool 0000000000000000000000000000000000000000000000000000000000000001
bool true
--
ethabi decode params -t bool -t string -t bool 00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000096761766f66796f726b0000000000000000000000000000000000000000000000
bool true
string gavofyork
bool false
--
ethabi decode params -t bool[] 00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
bool[] [true,false,false]
--
ethabi decode params -t '(string,bool,string)' 00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000673706972616c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000067175617361720000000000000000000000000000000000000000000000000000```
(string,bool,string) (spiral,true,quasar)
--
ethabi decode function ./examples/foo.json bar 0000000000000000000000000000000000000000000000000000000000000001
[{
"constant":false,
"inputs":[{
"name":"hello",
"type":"address"
}],
"name":"bar",
"outputs":[{
"name":"",
"type":"bool"
}],
"type":"function"
}]
bool true
--
ethabi decode log ./examples/event.json Event -l 0000000000000000000000000000000000000000000000000000000000000001 0000000000000000000000004444444444444444444444444444444444444444
a bool true
b address 4444444444444444444444444444444444444444
依赖关系
~3.5MB
~77K SLoC