基于EOS的去中心化交易平台
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一. 合约接口说明:
创建代币bancor池:
void create(account_name payer, account_name exchange_account, asset eos_supply, account_name token_contract, asset token_supply);
payer: 支付账号,从这个账号转出代币和EOS到bancor池账号
exchange_account: bancor池账号,TEST代币和EOS代币都在此账号名下:如:etbexchange1
eos_supply: 初始化EOS数量:如: 100000.0000 EOS
token_contract: 代币属于哪个合约,如:issuemytoken部署创建了TEST代币
token_supply: 初始化代币数量:如:1000000.0000 TEST代币
购买代币,收取万分之markets.buy_fee_rate手续费,由交易池所有股东共享
void buytoken( account_name payer, asset eos_quant,account_name token_contract, symbol_type token_symbol, account_name fee_account,int64_t fee_rate);
payer: 买币账号
eos_quant: 用quant个EOS购买代币
token_contract: 代币属于哪个合约,如TEST代币是issuemytoken部署创建的
token_symbol: 想要购买的代币符号:如TEST
fee_account: 收取手续费的账号
fee_rate: 手续费率:[0,10000),如:50等同于万分之50; 0等同于无手续费
卖代币,收取万分之markets.sell_fee_rate手续费,由交易池所有股东共享
void selltoken( account_name receiver, account_name token_contract, asset quant ,account_name fee_account,int64_t fee_rate);
receiver: 卖币账号,接收EOS
token_contract: 代币属于哪个合约,如TEST代币是issuemytoken部署创建的
quant: 想要卖出的quant个代币
fee_account: 收取手续费的账号
fee_rate: 手续费率:[0,10000),如:50等同于万分之50; 0等同于无手续费
参与做庄,往交易池注入EOS和token代币,享受手续费分红,最少注入交易池的1/100,最多做庄人数为markets.banker_max_number
void exchange::addtoken( account_name account,asset quant, account_name token_contract,symbol_type token_symbol )
account: 支付账号,从这个账号转出当前市场价格的代币和EOS到bancor池账号中
quant: 新增的EOS量
token_contract: 代币属于哪个合约,如TEST代币是issuemytoken部署创建的
token_symbol: 新增的代币符号
例如:当前市场1EOS可以买到10个TEST,那么增加1000个EOS时,会从account转出1000个EOS和10000个TEST到bancor池中
庄家取走代币,必须全额取走,会根据比例获得交易手续费分红
void exchange::subtoken( account_name account, asset quant, account_name token_contract,symbol_type token_symbol )
account: 支付账号,向这个账号转入当前市场价格的代币和EOS
quant: 减少的EOS量
token_contract: 代币属于哪个合约,如TEST代币是issuemytoken部署创建的
token_symbol: 减少的代币符号
例如:当前市场1EOS可以买到10个TEST,那么减少1000个EOS时,会从bancor池中转出1000个EOS和10000个TEST到account中
设置参数
void exchange::setparam(account_name token_contract,symbol_type token_symbol, string paramname, string param);
token_contract: 代币属于哪个合约,如TEST代币是issuemytoken部署创建的
token_symbol: 减少的代币符号
paramname: 设置参数的名称,如exchange_type
param: 设置的参数
暂停交易所
void exchange::pause();
重启交易所
void exchange::restart();
二. 交易所操作步骤:合约账号:etbexchanger,用于创建交易所;(可在主网上查看)
1.编译合约
eosiocpp -o /eos/contracts/etbexchange/etbexchange.wast /eos/contracts/etbexchange/etbexchange.cpp /eos/contracts/etbexchange/exchange_state.cpp
eosiocpp -g /eos/contracts/etbexchange/etbexchange.api /eos/contracts/etbexchange/etbexchange.cpp
部署交易所合约
eg: cleos set contract etbexchanger /eos/contracts/etbexchange -p etbexchanger
创建TEST代币bancor池:
先授权给合约:
cleos set account permission etbexchanger active '{"threshold": 1,"keys": [{"key": "EOS6mBLtJQv5Adv36dDkvWtPP7bqUNArwWXiZCT8711CUBPBTbdnR","weight": 1}],"accounts": [{"permission":{"actor":"etbexchanger","permission":"eosio.code"},"weight":1}]}' owner -p etbexchanger
从etbexchanger中转出4个EOS和100000000个TEST币到bancor池etbexchange1中:
cleos push action etbexchanger create '["etbexchanger","etbexchange1", "4.0000 EOS","issuemytoken","100000000.0000 TEST"]' -p etbexchanger
撤销授权:
cleos set account permission etbexchanger active '{"threshold": 1,"keys": [{"key": "EOS6mBLtJQv5Adv36dDkvWtPP7bqUNArwWXiZCT8711CUBPBTbdnR","weight": 1}],"accounts": []}' owner -p etbexchanger
cleos get table etbexchanger etbexchanger shareholders { "rows": [{ "id": 0, "idxkey": "0x044554420000000010149ba6a1ae4e56", "total_quant": "3.8364 EOS", "map_acc_info": [{ "account": "user11111111", "info": { "eos_in": "3.8364 EOS", "token_in": "104265457.2018 TEST", "eos_holding": "3.8364 EOS", "token_holding": "104265457.2018 TEST" } } ] }], "more": false }
三. 用户交易步骤:
用户1:user11111111, 用户2:user22222222,
授权: cleos set account permission user11111111 active '{"threshold": 1,"keys": [{"key": "EOS5EwrHc3V4aFjL2ADV9X246yoZgyFdpKj4spKxq3GJBhETndJum","weight": 1}],"accounts": [{"permission":{"actor":"etbexchanger","permission":"eosio.code"},"weight":1}]}' owner -p user11111111
买TEST币: cleos push action etbexchanger buytoken '["user11111111", "0.1000 EOS", "issuemytoken","4,TEST", "user11111111", "0"]' -p user11111111
撤销授权: cleos set account permission user11111111 active '{"threshold": 1,"keys": [{"key": "EOS5EwrHc3V4aFjL2ADV9X246yoZgyFdpKj4spKxq3GJBhETndJum","weight": 1}],"accounts": []}' owner -p user11111111
授权: cleos set account permission user11111111 active '{"threshold": 1,"keys": [{"key": "EOS5EwrHc3V4aFjL2ADV9X246yoZgyFdpKj4spKxq3GJBhETndJum","weight": 1}],"accounts": [{"permission":{"actor":"etbexchanger","permission":"eosio.code"},"weight":1}]}' owner -p user11111111
卖TEST币: cleos push action etbexchanger selltoken '["user11111111", "issuemytoken","12439024.3889 TEST", "user11111111", "0" ]' -p user11111111
撤销授权: cleos set account permission user11111111 active '{"threshold": 1,"keys": [{"key": "EOS5EwrHc3V4aFjL2ADV9X246yoZgyFdpKj4spKxq3GJBhETndJum","weight": 1}],"accounts": []}' owner -p user11111111
授权: cleos set account permission user11111111 active '{"threshold": 1,"keys": [{"key": "EOS5EwrHc3V4aFjL2ADV9X246yoZgyFdpKj4spKxq3GJBhETndJum","weight": 1}],"accounts": [{"permission":{"actor":"etbexchanger","permission":"eosio.code"},"weight":1}]}' owner -p user11111111
做庄: cleos push action etbexchanger addtoken '["user11111111", "1000.0000 EOS","issuemytoken", "4,TEST"]' -p user11111111
撤销授权: cleos set account permission user11111111 active '{"threshold": 1,"keys": [{"key": "EOS5EwrHc3V4aFjL2ADV9X246yoZgyFdpKj4spKxq3GJBhETndJum","weight": 1}],"accounts": []}' owner -p user11111111
授权: cleos set account permission user11111111 active '{"threshold": 1,"keys": [{"key": "EOS5EwrHc3V4aFjL2ADV9X246yoZgyFdpKj4spKxq3GJBhETndJum","weight": 1}],"accounts": [{"permission":{"actor":"etbexchanger","permission":"eosio.code"},"weight":1}]}' owner -p user11111111
卖TEST币: cleos push action etbexchanger subtoken '["user11111111", "0.0000 EOS","issuemytoken", "4,TEST" ]' -p user11111111
撤销授权: cleos set account permission user11111111 active '{"threshold": 1,"keys": [{"key": "EOS5EwrHc3V4aFjL2ADV9X246yoZgyFdpKj4spKxq3GJBhETndJum","weight": 1}],"accounts": []}' owner -p user11111111
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