use inline action with eosio.token

EOS.IO Asked by AhmadKajjan on August 20, 2021

Hello guys i am trying to build a contract that act with eosio.token to make a transfer from my contract using inline action with the eosio.token contract
here my code

#include <eosio/eosio.hpp>
#include <eosio.token/eosio.token.hpp>

using namespace std;
using namespace eosio;

class [[eosio::contract("test")]] test:public eosio::contract{
        void make_transfer(name& from,name& to,asset& quantity,string& memo)
            token::transfer_action transfer{"eosio.token"_n, {from, "active"_n}};
            transfer.send(from,to,quantity, memo);

        test(name receiver,name code,datastream <const char*> ds):contract(receiver,code,ds){}
        void trade(name from,name to ,asset fromcoin,asset tocoin,string memo)


i got these error

Error 3090003: Provided keys, permissions, and delays do not satisfy declared authorizations
Ensure that you have the related private keys inside your wallet and your wallet is unlocked.

    Error Details:
    transaction declares authority '{"actor":"alice","permission":"active"}', but does not have signatures for it under a provided delay of 0 ms, provided permissions [{"actor":"test","permission":"eosio.code"}], provided keys [], and a delay max limit of 3888000000 ms
    pending console output: 

2 Answers

I ran into the exact same issue. You have to add your smart contract to the active permission. Check out this answer, it will solve your problem:

Answered by mschoenebeck on August 20, 2021

You can't do this like what eosio.system does. eosio.system is usually deployed on eosio, privileged account, that can send any action with any permission.

Any inline actions your contract send is executed with permission [email protected]. If you want to make USER's token to be transferred by your contract, USER need to add [email protected] to [email protected]. (but it means your contract can send any action with user's active permission)

In this case, it is better to make a notification handler than make your action transfer user's token.

void on_token_transfer(name from, name to, asset quantity, string memo) {

Answered by conr2d on August 20, 2021

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