How to define this API Parameters

[vccomnet]

HI,
I was developing a DAPP based on wallet-core and encountered a problem. I didn't know how to decode the response message data of the received smart contract. The interface return value lock [] of smart contract is an array of structures, defined as follows:

struct Lock {

uint256 id;

address token;

address owner;

uint256 amount;

uint256 lockDate;

uint256 tgeDate; // TGE date for vesting locks, unlock date for normal locks

uint256 tgeBps; // In bips. Is 0 for normal locks

uint256 cycle; // Is 0 for normal locks

uint256 cycleBps; // In bips. Is 0 for normal locks

uint256 unlockedAmount;

string description;

}

function normalLocksForUser(address user)

external

view

returns (Lock[] memory)

{

uint256 length = _ userNormalLockIds[user].length();

Lock[] memory userLocks = new Lock;

for (uint256 i = 0; i < length; i++) {

userLocks[i] = getLockById(_userNormalLockIds[user].at(i));

}

return userLocks;

}

My code is as follows:

SP_ UINT32 TOKEN_ DecodeNormalLocksForUser(SP_CHAR *pEncoded)

{

auto param = TW::Ethereum::ABI::Parameters(std::vector<std::shared_ptrTW::Ethereum::ABI::ParamBase>{

std::make_ sharedTW::Ethereum::ABI::ParamArray(std::vector<std::shared_ptrTW::Ethereum::ABI::ParamBase>{

std::make_ sharedTW::Ethereum::ABI::ParamTuple(std::vector<std::shared_ptrTW::Ethereum::ABI::ParamBase>{

std::make_ sharedTW::Ethereum::ABI::ParamUInt256(), /id/

std::make_ sharedTW::Ethereum::ABI::ParamAddress(), /token/

std::make_ sharedTW::Ethereum::ABI::ParamAddress(), /owner/

std::make_ sharedTW::Ethereum::ABI::ParamUInt256(), /amount/

std::make_ sharedTW::Ethereum::ABI::ParamUInt256(), /lockDate/

std::make_ sharedTW::Ethereum::ABI::ParamUInt256(), /tgeDate/

std::make_ sharedTW::Ethereum::ABI::ParamUInt256(), /tgeBps/

std::make_ sharedTW::Ethereum::ABI::ParamUInt256(), /cycle/

std::make_ sharedTW::Ethereum::ABI::ParamUInt256(), /cycleBps/

std::make_ sharedTW::Ethereum::ABI::ParamUInt256(), /unlockedAmount/

std::make_ sharedTW::Ethereum::ABI::ParamString(), /description/

})

})

});

//((uint256,address,address,uint256,uint256,uint256,uint256,uint256,uint256,uint256,string)[])

std::string type = param.getType();

size_ t offset = 0;

bool res = param.decode(TW::parse_hex(pEncoded), offset);

if (true != res)

{

return SP_ FALSE;

}

SP_ UINT32 i;

SP_ UINT32 udwCount = param.getCount();

for (i = 0; i < udwCount; i++)

{

/*

struct Lock {

uint256 id;

address token;

address owner;

uint256 amount;

uint256 lockDate;

uint256 tgeDate; // TGE date for vesting locks, unlock date for normal locks

uint256 tgeBps; // In bips. Is 0 for normal locks

uint256 cycle; // Is 0 for normal locks

uint256 cycleBps; // In bips. Is 0 for normal locks

uint256 unlockedAmount;

string description;

}

*/

SP_ UINT64 id = (std::dynamic_pointer_castTW::Ethereum::ABI::ParamUInt64((std::dynamic_pointer_castTW::Ethereum::ABI::ParamArray(param.getParam(i)))->getParam(0)))->getVal();

std::string token = TW::hex((std::dynamic_pointer_castTW::Ethereum::ABI::ParamAddress((std::dynamic_pointer_castTW::Ethereum::ABI::ParamArray(param.getParam(i)))->getParam(1)))->getData());

}

return SP_ TRUE;

}

The data returned by the contract:

[vccomnet]

The data returned by the contract: 0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 f4 24000000000000000000000000000995737db111fd9ff272160ab7651e85c1ef2506e00000000000000000000000000000000000000000005858f6d09cd3cdcb25f32254fdeb8 073d5e20e2e00000000000000000000000000000000000000000000152d02c7e14af68000000000000000000000000000000000000000000000000000000000000063def5230000000000000000000000000000000000000000000000000000000064044f780000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000160000000000000000000000000000000000000000000000000000000000000000548656c6c6f000000000000000000000000000000000000000000000000000000

The result is in the code bool res=param.decode (TW:: parse_hex (pEncoded), offset); Returns false.

I think there is a problem with the definition of Parameters param. I don't know whether it is right or not. Please help me see how to solve this problem? thank you.

[vccomnet]

The result is in the code bool res=param.decode (TW:: parse_hex (pEncoded), offset); Returns false. ----------------- Sorry, there are no errors here. The returned value is true.

[vccomnet]

SP_ UINT64 id = (std::dynamic_pointer_castTW::Ethereum::ABI::ParamUInt64((std::dynamic_pointer_castTW::Ethereum::ABI::ParamArray(param.getParam(i)))->getParam(0)))->getVal(); -------------- The error occurred here and an exception occurred.

[vccomnet]

If the contract returns two locks, Data: 0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 1e 000000000000000000000000000000000000000000000000000000000000000000000000 f42400000000000000000000000000000000000 995737db111fd9ff272160ab7651e85c1ef2506e0000 000000000000000000005858f6d09cd3cdcb25f32254fdeb8073d5e20e2e00000000000000000000000000000000000000000000152d02c7e14af68000000000000000000000000000000000000000000000000000000000000063def5230000000000000000000000000000000000000000000000000000000064044f78000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000160000000000000000000000000000000000000000000000000000000000000000548656c6c6f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000f4241000000000000000000000000995737db11 1fd9ff272160ab7651e85c1ef2506e0000000000000000000000005858f6d09cd3cdcb25f32254fdeb8073d5e20e2e00000000000000000000000000000000000000000000152d02c7e14af68000000000000000000000000000000000000000000000000000000000000063df0fe00000000000000000000000000000000000000000000000000000000064046a4100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000160000000000000000000000000000000000000000000000000000000000000000548656c6c6f000000000000000000000000000000000000000000000000000000
SP_ UINT32 udwCount = param.getCount(); The obtained udwCount is still 1