EOS Bancor Contract

This contract implements bancor contract which allows token issuer to supply his token (called smart token) by embedded pricing algorithm. Each connector provides conversion between smart token and medium token of interexchange (called connected token).

Build

It requires eosio.cdt v1.6.1 or higher. Compiled wasm and abi will be generated under ./build.

$ ./build.sh

Deploy

$ cleos set contract eosbancor build/eosbancor
$ cleos set account permission eosbancor active --add-code

Usage

It requires deployed eosio.token contract or other contracts which owns issue, retire and transfer actions compatible with eosio.token.

First, initialize contract by setting connected token. (init can be called only once)

$ cleos push action eosbancor init '["eosio", ["4,EOS", "eosio.token"]]' -p eosbancor@active

Second, create a connector and transfer token for initial balance. Here, smart token is issued on conr2d.token contract and its issuer is conr2d. The symbol of smart token is HOBL.

$ cleos push action eosbancor connect '[["0,HOBL", "conr2d.token"], {"quantity": "10000.0000 EOS", "contract": "eosio.token"}, 0.5]' -p conr2d@active
$ cleos push action eosio.token transfer '["conr2d", "eosbancor", "10000.0000 EOS", "[email protected]"]' -p conr2d@active
$ cleos set account permission conr2d active eosbancor --add-code

Third, user can convert smart or connected token by trasfer token to bancor contract.

// buy token
$ cleos push action eosio.token transfer '["alice", "eosbancor", "1.0000 EOS", "[email protected]"]' -p alice@active

// sell token
$ cleos push action conr2d.token transfer '["alice", "eosbancor", "1 HOBL", "[email protected]"]' -p alice@active