tip: 31
title: TRC-31 Trigger constant contract
author: llwslc<[email protected]>
discussions to: https://github.com/tronprotocol/TIPs/issues/31
category: TRC
status: Final
created: 2019-4-3
This TIP specifies a new api, which triggers the constant contract without ABI.
Some of contracts are uploaded without the ABI. It is hard to judge whether the function is a constant function or not. So, we must provide an interface for calling the constant function explicitly.
A new api, triggerConstantContract, is introduced.
// api.proto
rpc TriggerConstantContract (TriggerSmartContract) returns (TransactionExtention) {}
The triggerConstantContract parameters are the same as the triggerContract.
triggerConstantContract contract_address method args isHex
Http interface example:
curl -X POST http://127.0.0.1:8090/wallet/triggerconstantcontract -d {"contract_address":"4189139CB1387AF85E3D24E212A008AC974967E561","function_selector":"foo(uint256,uint256)","parameter":"00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002","owner_address":"41D1E7A6BC354106CB410E65FF8B181C600FF14292"}'
In case the type of method is not constant will gets error.
There are no backwards compatibility concerns.
- Trigger the constant method by
triggerConstantContract. - Trigger the non-constant method by
triggerConstantContract.