Skip to content
A simple standard for digital assets (both fungible and NFTs - non-fungible tokens) for EOSIO blockchains
Shell C++ CMake
Branch: master
Clone or download
Latest commit 0e657aa Aug 12, 2019
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
build/SimpleAssets
external_test v1.1.1 Aug 12, 2019
include v1.1.1 Aug 12, 2019
ricardian
src v1.1.1 Aug 12, 2019
CMakeLists.txt v0.1.0 Feb 26, 2019
LICENSE v0.3.0 Mar 26, 2019
README.md v1.1.1 Aug 12, 2019
SimpleAssets.abi v1.1.1 Aug 12, 2019
build.sh v0.4.0 Apr 8, 2019

README.md

SimpleAssets

中文翻译

한국어 번역

A simple standard for digital assets (both fungible and non-fungible tokens - NFTs) for EOSIO blockchains
by CryptoLions

web: http://simpleassets.io
Git: https://github.com/CryptoLions/SimpleAssets
Telegram: https://t.me/simpleassets

Intro & Demos: https://medium.com/@cryptolions/introducing-simple-assets-b4e17caafaa4

Events Receiver Example for authors: https://github.com/CryptoLions/SimpleAssets-EventReceiverExample

WARNING!!! CDT currently has a bug that doesn't allow compilation on v1.6.x. 1.5.0 also has a bug "Segmentation fault (core dumped)", but only with abi generation. Recommendation: Use 1.5.0 for contract compilation and use our abi
issue: https://github.com/EOSIO/eosio.cdt/issues/527


Use Simple Assets by making calls to the Simple Assets contract. It's like a Dapp for Dapps.

Jungle Testnet: simpleassets

EOS Mainnet: simpleassets
MEETONE Mainnet: smplassets.m
TELOS Mainnet: simpleassets

Simple Assets is a separate contract which other Dapps can call to manage their digital assets. This serves as an additional guarantee to users of the Dapp that the ownership of assets is managed by a reputable outside authority, and that once created, the Dapp can only manage the asset's mdata. All the ownership-related functionality exists outside the game.

We are in the process of creating a DAC which will curate updates to Simple Assets after deployment to the EOSIO mainnet.

Related: understanding ownership authority.

To post information about your NFTs to third-party marketplaces, use the regauthor action.

Alternatively, dapps can Deploy their own copy of Simple Assets and make modifications to have greater control of functionality. Before deploying, Simple Assets should be modified to prevent anyone from making assets.


RAM usage

The RAM usage for NFTs depends on how much data is stored in the idata and mdata fields. If they both empty, each NFT takes up 276 bytes.

Each symbol in imdata and mdata is +1 byte.


Scope:

  1. Contract actions
  2. Data Structures
  3. EXAMPLES: how to use Simple Assets in smart contracts
  4. ChangeLog

Contract actions

A description of each parameter can be found here:
https://github.com/CryptoLions/SimpleAssets/blob/master/include/SimpleAssets.hpp

 # -- For Non-Fungible Tokens ---
 
 create			(author, category, owner, idata, mdata, requireсlaim)  
 update			(author, owner, assetid, mdata)  
 transfer		(from, to , [assetid1,..,assetidn], memo)  
 burn			(owner, [assetid1,..,assetidn], memo)  
 
 offer			(owner, newowner, [assetid1,..,assetidn], memo)  
 canceloffer		(owner, [assetid1,..,assetidn])  
 claim			(claimer, [assetid1,..,assetidn])  
  
 regauthor		(name author, data, stemplate)  
 authorupdate		(author, data, stemplate)  
 
 delegate		(owner, to, [assetid1,..,assetidn], period, memo)  
 undelegate		(owner, from, [assetid1,..,assetidn])  
 delegatemore		(owner, assetid, period)  
 
 attach			(owner, assetidc, [assetid1,..,assetidn])
 detach			(owner, assetidc, [assetid1,..,assetidn])
 
 attachf		(owner, author, quantity, assetidc)
 detachf		(owner, author, quantity, assetidc)
 
 # -- For Fungible Tokens ---
 
 createf		(author, maximum_supply, authorctrl, data)
 updatef		(author, sym, data)
 issuef			(to, author, quantity, memo)
 transferf		(from, to, author, quantity, memo)
 burnf			(from, author, quantity, memo)

 offerf			(owner, newowner, author, quantity, memo)
 cancelofferf		(owner, [ftofferid1,...,ftofferidn])
 claimf			(claimer, [ftofferid1,...,ftofferidn])

 openf			(owner, author, symbol, ram_payer)
 closef			(owner, author, symbol)
 

Data Structures

Assets

sasset {  
	uint64_t	id; 		// asset id used for transfer and search;  
	name		owner;  	// asset owner (mutable - by owner!!!);  
	name		author;		// asset author (game contract, immutable);  
	name		category;	// asset category, chosen by author, immutable;  
	string		idata;		// immutable assets data. Can be stringified JSON or just sha256 string;  
	string		mdata;		// mutable assets data, added on creation or asset update by author. Can be  
					// stringified JSON or just sha256 string;  
	sasset[]	container;	// other NFTs attached to this asset
	account[]	containerf;	// FTs attached to this asset
}  

// Please include in idata or mdata info about asset name img desc which will be used by Markets

Offers

offers {  
	uint64_t	assetid;	// asset id offered for claim ; 
	name		owner;		// asset owner;  
	name		offeredto;	// who can claim this asset ; 
	uint64_t	cdate;		// offer create date;  
}  

Authors

authors {  
	name	author;			// assets author, who will be able to create and update assets;  
	string	data;			// author’s data (json) will be used by markets for better display;
					// recommendations: logo, info, url;  
	string	stemplate;		// data (json) schema for third-party markets. 
					// key: state values, where key is the key from mdata or idata;  
					// recommended values: txt, img, url, hide, webgl, mp3, video, timestamp;  
}  

Delegates

delegates{  
	uint64_t	assetid;	// asset id offered for claim;  
	name		owner;		// asset owner;  
	name		delegatedto;	// who can claim this asset;  
	uint64_t	cdate;		// offer create date;  
	uint64_t	period;		// Time in seconds that the asset will be lent. Lender cannot undelegate until 
					// the period expires, however the receiver can transfer back at any time.
	string		memo;		// memo from action parameters. Max 64 length.

}  

Currency Stats (Fungible Token)

stat {  
	asset		supply;		// Tokens supply 
	asset		max_supply;	// Max token supply
	name		issuer;		// Fungible token author
	uint64_t	id;		// Unique ID for this token
	bool		authorctrl;	// if true(1) allow token author (and not just owner) to burn and transfer.
	string		data;		// stringified json. recommended keys to include: `img`, `name`
}

Account (Fungible Token)

accounts {  
	uint64_t	id;		// token id, from stat table
	name		author;		// token author
	asset		balance;	// token balance
}  
sofferf {
	uint64_t	id;		// id of the offer for claim (increments automatically) 
	name		author;		// ft author
	name		owner;		// ft owner
	asset		quantity;	// quantity
	name		offeredto;	// account who can claim the offer
	uint64_t	cdate;		// offer creation date
}

EXAMPLES: how to use Simple Assets in smart contracts

Creating Asset and transfer to owner account ownerowner22:

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

name author = get_self();
name category = "weapon"_n;
name owner = "ownerowner22"_n;
string idata = "{\"power\": 10, \"speed\": 2.2, \"name\": \"Magic Sword\" }";
string mdata = "{\"color\": \"bluegold\", \"level\": 3, \"stamina\": 5, \"img\": \"https://bit.ly/2MYh8EA\" }";

action createAsset = action(
	permission_level{author, "active"_n},
	SIMPLEASSETSCONTRACT,
	"create"_n,
	std::make_tuple( author, category, owner, idata, mdata,	0 )
);
createAsset.send();	

Creating Asset with requireclaim option for ownerowner22:

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

name author = get_self();
name category = "balls"_n;
name owner = "ownerowner22"_n;
string idata = "{\"radius\": 2, \"weigh\": 5, \"material\": \"rubber\", \"name\": \"Baseball\" }";
string mdata = "{\"color\": \"white\", \"decay\": 99, \"img\": \"https://i.imgur.com/QoTcosp.png\" }";


action createAsset = action(
	permission_level{author, "active"_n},
	SIMPLEASSETSCONTRACT,
	"create"_n,
	std::make_tuple( author, category, owner, idata, mdata, 1 )
);
createAsset.send();	

Search asset and get assets info

  1. Please add in your hpp file info about assets structure WARNING!!! CDT currently has a bug that doesn't allow compilation (v1.6.1).
    1.5.0 also has a bug "Segmentation fault (core dumped)", but only with abi generation (including array of self objects : std::vector container;)
TABLE account {
	uint64_t	id;
	name		author;
	asset		balance;

	uint64_t primary_key()const { 
		return id;
	}
};
typedef eosio::multi_index< "accounts"_n, account > accounts;

TABLE sasset {
	uint64_t		id;
	name			owner;
	name			author;
	name			category;
	string			idata;
	string			mdata;
	std::vector<sasset>	container;
	std::vector<account>	containerf;

			
	auto primary_key() const {
		return id;
	}

	uint64_t by_author() const {
		return author.value;
	}
};

typedef eosio::multi_index< "sassets"_n, sasset, 		
		eosio::indexed_by< "author"_n, eosio::const_mem_fun<sasset, uint64_t, &sasset::by_author> >
> sassets;
  1. Searching and using info
name SIMPLEASSETSCONTRACT = "simpleassets"_n;
name author = get_self();
name owner = "lioninjungle"_n;

uint64_t assetid = 100000000000187

sassets assets(SIMPLEASSETSCONTRACT, owner.value);
auto idx = assets.find(assetid);

check(idx != assets.end(), "Asset not found or not yours");

check (idx->author == author, "Asset is not from this author");

auto idata = json::parse(idx->idata);  // for parsing json here is used nlohmann lib
auto mdata = json::parse(idx->mdata);  // https://github.com/nlohmann/json

check(mdata["cd"] < now(), "Not ready yet for usage");

Update Asset

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

auto mdata = json::parse(idxp->mdata);
mdata["cd"] = now() + 84600;

name author = get_self();
name owner = "ownerowner22"_n;
uint64_t assetid = 100000000000187;

action saUpdate = action(
	permission_level{author, "active"_n},
	SIMPLEASSETSCONTRACT,
	"update"_n,
	std::make_tuple(author, owner, assetid, mdata.dump())
);
saUpdate.send();

Transfer one Asset

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

name author = get_self();
name from = "lioninjungle"_n;
name to = "ohtigertiger"_n;

std::vector<uint64_t> assetids;
assetids.push_back(assetid);

string memo = "Transfer one asset";

action saUpdate = action(
	permission_level{author, "active"_n},
	SIMPLEASSETSCONTRACT,
	"transfer"_n,
	std::make_tuple(from, to, assetids, memo)
);
saUpdate.send();

Transfer two Asset to same receiver with same memo

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

name author = get_self();
name from = "lioninjungle"_n;
name to = "ohtigertiger"_n;

std::vector<uint64_t> assetids;
assetids.push_back(assetid1);
assetids.push_back(assetid2);

string memo = "Transfer two asset"

action saUpdate = action(
	permission_level{author, "active"_n},
	SIMPLEASSETSCONTRACT,
	"transfer"_n,
	std::make_tuple(from, to, assetids, memo)
);
saUpdate.send();

issuef (fungible) issue created token

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

asset wood;
wood.amount = 100;
wood.symbol = symbol("WOOD", 0);

name author = get_self();
name to = "lioninjungle"_n;

std::string memo = "WOOD faucet";
action saRes1 = action(
	permission_level{author, "active"_n},
	SIMPLEASSETSCONTRACT,
	"issuef"_n,
	std::make_tuple(to, author, wood, memo)
);
saRes1.send();

transferf (fungible) by author if authorctrl is enabled

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

asset wood;
wood.amount = 20;
wood.symbol = symbol("WOOD", 0);

name from = "lioninjungle"_n;
name to = get_self();
name author = get_self();

std::string memo = "best WOOD";
action saRes1 = action(
	permission_level{author, "active"_n},
	SIMPLEASSETSCONTRACT,
	"transferf"_n,
	std::make_tuple(from, to, author, wood, memo)
);
saRes1.send();

burnf (fungible) by author if authorctrl is enabled

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

asset wood;
wood.amount = 20;
wood.symbol = symbol("WOOD", 0);

name author = get_self();
name from = "lioninjungle"_n;

std::string memo = "WOOD for oven";
action saRes1 = action(
	permission_level{author, "active"_n},
	SIMPLEASSETSCONTRACT,
	"burnf"_n,
	std::make_tuple(from, author, wood, memo)
);
saRes1.send();

Change Log v1.1.1

  • optimized claim/transfer/burn functionality
  • Memo field added to delegates table. (This allows lenders/games to create different classes of borrowed assets - eg. high risk / low risk.) On delegete action, the memo from action parmeter is stored to this new field. max 64 chars length.
  • Added three new unit tests for delegate memo.

Change Log v1.1.0

  • Code refactoring
  • Fixed detaching containerized NFTs for delegated and transferred NFTs.
  • new action delegatemore which allows extending delegate period for borrowed NFT.
  • Added external(bash) unit tests

Change Log v1.0.1

  • new parameter requireclaim in createlog action which is used internaly to create actions history logs.

Change Log v1.0.0

  • Block owner from offering assets to themselves

Change Log v0.4.2

  • format for saeclaim event changed: array of assetids replaced by map <assetid, from>

Change Log v0.4.1

  • added require_recipient(owner) to create action

Change Log v0.4.0

Easily find fungible token information (fungible tokens have scope author):

  • new field author in account table for FT. (makes it easier to find fungible token information)

More fungible token information:

  • new field data in currency_stats table - stringify json which might include keys img, name (recommended for better displaying by markets)
  • new parameter data in createf action
  • new action updatef to change FT data

Offer/claim fungible tokens

  • new table sofferf to use for offer/calim FT
  • new actions offerf, cancelofferf and claimf
  • on closef check if no open offers (internal)

Containerizing assets
WARNING!!! CDT currently has a bug that doesn't allow compilation (v1.6.1).
1.5.0 also has a bug "Segmentation fault (core dumped)", but only with abi generation. Recommendation: Use 1.5.0 for contract compilation and use our abi

  • new fields container and containerf in nft asset structure for attaching and detaching other NFT or FT
  • new actions attach, detach
  • new actions attachf, detachf

misc

  • fields renamed lastid -> lnftid, spare->defid (internal usage) in table global
  • field offeredTo renamed to offeredto in table soffer

Change Log v0.3.2

  • Added memo parameter to action offer;
  • Added memo parameter to action delegate;

Change Log v0.3.1

  • Internal action for NFT createlog added. Used by create action to log assetid so that third party explorers can easily get new asset ids and other information.
  • New singelton table tokenconfigs added. It helps external contracts parse actions and tables correctly (Usefull for decentralized exchanges, marketplaces and other contracts that use multiple tokens). Marketplaces, exchanges and other reliant contracts will be able to view this info using the following code.
     Configs configs("simpleassets"_n, "simpleassets"_n.value);
     configs.get("simpleassets"_n);
    
  • added action updatever. It updates version of this SimpleAstes deployment for 3rd party wallets, marketplaces, etc;
  • New examples for Event notifications: https://github.com/CryptoLions/SimpleAssets-EventReceiverExample

Change Log v0.3.0

  • Added event notifications using deferred transaction. Assets author will receive notification on assets create, transfer, claim or burn. To receive it please add next action to your author contract:
         ACTION saecreate   ( name owner, uint64_t assetid );  
         ACTION saetransfer ( name from, name to, std::vector<uint64_t>& assetids, std::string memo );  
         ACTION saeclaim    ( name account, std::vector<uint64_t>& assetids );  
         ACTION saeburn     ( name account, std::vector<uint64_t>& assetids, std::string memo );  
    
  • untildate parameter changed to period (in seconds) for actions delegate and table sdelegates

Change Log v0.2.0

Added Fungible Token tables and logic using eosio.token contract but with some changes

  • New actions and logic: createf, issuef, transferf, burnf, openf, closef
  • added new tables stat(supply, max_supply, issuer, id) and accounts (id, balance).
  • scope for stats table (info about fungible tokens) changed to author
  • primary index for accounts table is uniq id created on createf action and stored in stats table.
  • added createf action for fungible token with parametr authorctrl to stats table. If true(1) allows token author (and not just owner) to burnf and transferf. Cannot be changed after creation!
  • Ricardian contracts updated
  • more usage examples below

Change Log v0.1.1

Misc

  • sdelagate table structure renamed to sdelegate (typo)
  • create action parameters renamed: requireClaim -> requireclaim
  • assetID action parameter renamed in all actions to assetid

Borrowing Assets

  • sdelegate table - added new field: untildate
  • delegate action added parameters untildate. Action does a simple check if parameter was entered correctly (either zero or in the future).
  • undelegate will not work until untildate (this guarantees a minimum term of the asset loan).
  • allow transfer asset back (return) if its delegated, sooner than untiltime (borrower has option ton return early)

Batch Processing

  • claim action: assetid parameter changed to array of assetsids. Multiple claim logic added.
  • offer action: assetid parameter changed to array of assetsids. Multiple offer logic added.
  • canceloffer action: assetid parameter changed to array of assetsids. Multiple cancelation logic added.
  • transfer action: assetid parameter changed to array of assetsids. Multiple assets transfer logic added.
  • burn action: assetid parameter changed to array of assetsids. Multiple burning logic added.
  • delegate/undelegate action: assetid parameter changed to array of assetsids. Multiple delegation/undelegation logic added.

========

中文翻译

简单资产(Simple Assets)

一款EOSIO区块链上的数字资产(可替代和不可替代代币——NFTs)标准,由CryptoLions开发创建。

web: [http://simpleassets.io](http://simpleassets.io/
Git: https://github.com/CryptoLions/SimpleAssets
Telegram: https://t.me/simpleassets

EOS 主网帐户:simpleassets MEETONE 主网帐户: smplassets.m TELOS 主网帐户:simpleassets

简介和演示:https://medium.com/\@cryptolions/introducing-simple-assets-b4e17caafaa4

作者的事件接收器示例:https://github.com/CryptoLions/SimpleAssets-EventReceiverExample


警告!!!CDT目前有一个不被允许在v1.6.x版本上编译漏洞。 1.5.0版本上也有一个漏洞"Segmentation fault (core dumped)",但仅基于abi可生成。 建议:使用1.5.0版本合约和我们的abi编译. 问题: https://github.com/EOSIO/eosio.cdt/issues/527

通过调用简单资产(Simple Assets)合约来使用Simple Assets。这就像是Dapps的Dapp。

丛林测试网: simpleassets

EOS 主网: simpleassets MEETONE 主网: smplassets.m TELOS 主网: simpleassets

简单资产(Simple Assets)是一个独立的合约,其他Dapps可以直接调用它来管理自己的数字资产。这为Dapp用户提供了额外的保证,即资产的所有权由信誉良好的外部机构管理,并且一旦创建,Dapp只能管理资产的mdata部分。 所有与所有权相关的功能都存在于游戏之外。

我们正在创建一个DAC,它将在部署至EOSIO主网后对简单资产(Simple Assets)策划更新。

相关信息:理解所有权。

运用regauthor操作发送自己的NFTs信息至第三方商城。

或者,dapps可以自行部署简单资产(Simple Assets)副本并进行修改以更好地控制其功能。 部署前,应修改简单资产(Simple Assets)以防止任何人创建资产。

RAM使用情况

NFT的RAM使用量取决于idata和mdata字段中存储的数据量。 如果它们都为空,则每个NFT占用276个字节。

imdata和mdata中的每个符号都是+1字节。


目录

  1. 合约操作

  2. 数据结构

  3. 示例:如何在智能合约中使用简单资产

  4. 更新日志


合约操作

可在此处找到每个参数的说明:

https//github.com/CryptoLions/SimpleAssets/blob/master/include/SimpleAssets.hpp

\# -- For Non-Fungible Tokens ---

create (author, category, owner, idata, mdata, requireсlaim)
update (author, owner, assetid, mdata)
transfer (from, to , [assetid1,..,assetidn], memo)
burn (owner, [assetid1,..,assetidn], memo)

offer (owner, newowner, [assetid1,..,assetidn], memo)
canceloffer (owner, [assetid1,..,assetidn])
claim (claimer, [assetid1,..,assetidn])

regauthor (name author, data, stemplate)
authorupdate (author, data, stemplate)

delegate (owner, to, [assetid1,..,assetidn], period, memo)
undelegate (owner, from, [assetid1,..,assetidn])
delegatemore		(owner, assetid, period)  

attach (owner, assetidc, [assetid1,..,assetidn])
detach (owner, assetidc, [assetid1,..,assetidn])
attachf (owner, author, quantity, assetidc)
detachf (owner, author, quantity, assetidc)

\# -- For Fungible Tokens ---

createf (author, maximum_supply, authorctrl, data)
updatef (author, sym, data)
issuef (to, author, quantity, memo)
transferf (from, to, author, quantity, memo)
burnf (from, author, quantity, memo)

offerf (owner, newowner, author, quantity, memo)
cancelofferf (owner, [ftofferid1,...,ftofferidn])
claimf (claimer, [ftofferid1,...,ftofferidn])

openf (owner, author, symbol, ram_payer)
closef (owner, author, symbol)

数据结构

资产

sasset {

uint64_t id; // 用于转移和搜索的资产ID  
name owner; // 资产所有者(可变更 — 由所有者决定!!!) 
name author; //  资产创建者(游戏合约,不可变更)  
name category; // 资产类别,由创建者选择,不可变更  
string idata; // 不可变更资产数据。 它可以是字符串化“JSON”或只是字符串“sha256”  
string mdata; // 可变资产数据,由创建者在创建或资产更新时添加。 它可以是字符串化“JSON”或只是字符串“sha256”  
sasset[] container; // 其它NFTs(可替代和不可替代代币)附加到此资产  
account[] containerf; // FTs(可替代代币)附加到此资产  

}

//请包含有关资产名称img desc的idata或mdata信息,这些信息将由Markets使用。 

报价

offers {

uint64_t assetid; // 提供 claim 的资产ID  
name owner; // 资产所有者  
name offeredto; // 可以 claim 此资产的人  
uint64_t cdate; // 创建日期  

}

创建者

authors {

name author; 	// 资产创建者,将能够创建和更新资产

string data; 	// 创建者的数据(json)将被商城用于更好的展示
 		// 建议:形象徽标(logo),信息,网址;

string	stemplate;		// 商城的数据(json)模式。 key:状态值,其中 key 是 idata 或 mdata 的字段名
				// 对非文本字段的建议格式:txt,img,url,hide,webgl,mp3,video,timestamp

}

委托

delegates{

uint64_t assetid; // asset id offered for claim;
name owner; // asset owner;
name delegatedto; // who can claim this asset;
uint64_t cdate; // offer create date;
uint64_t period; // Time in seconds that the asset will be lent. Lender cannot
undelegate until

// the period expires, however the receiver can transfer back at any time.

}

货币统计(可替代代币)

stat {

asset supply; // 提供代币
asset max_supply; // 提供最大量代币
name issuer; // 可替代代币(Fungible token)创建者
uint64_t id; // 此代币的唯一ID
bool authorctrl; // 如果 true(1)允许代币创建者(而不仅仅是所有者)进行烧录和传输
string data; // 字符串化的json。 建议的keys包括: img,name

}

账户(可替代代币)

accounts {

uint64_t id; // 代币ID,来自 stat 表
name author; // 代币创建者
asset balance; // 代币余额

}

sofferf {

uint64_t id; // claim 此 offer 的ID(自动递增)

name author; // 可替代代币(fungible token)创建者
name owner; // 可替代代币(fungible token)所有者
asset quantity; // 资产数量
name offeredto; // 可以 claim 此 offer 的帐户
uint64_t cdate; // offer创建日期

}

示例:如何在智能合约中使用简单资产

创建资产并转移到所有者帐户ownerowner22:

name SIMPLEASSETSCONTRACT = "simpleassets"_n;
name author = get_self();
name category = "weapon"_n;
name owner = "ownerowner22"_n;

string idata = "{\\"power\\": 10, \\"speed\\": 2.2, \\"name\\": \\"Magic
Sword\\" }";

string mdata = "{\\"color\\": \\"bluegold\\", \\"level\\": 3, \\"stamina\\": 5,
\\"img\\": \\"https://bit.ly/2MYh8EA\\" }";

action createAsset = action(
permission_level{author, "active"_n},
SIMPLEASSETSCONTRACT,
"create"_n,
std::make_tuple( author, category, owner, idata, mdata, 0 )

);

createAsset.send();

使用ownerowner22的requireclaim选项创建资产:

name SIMPLEASSETSCONTRACT = "simpleassets"_n;
name author = get_self();
name category = "balls"_n;
name owner = "ownerowner22"_n;

string idata = "{\\"radius\\": 2, \\"weigh\\": 5, \\"material\\": \\"rubber\\",
\\"name\\": \\"Baseball\\" }";

string mdata = "{\\"color\\": \\"white\\", \\"decay\\": 99, \\"img\\":
\\"https://i.imgur.com/QoTcosp.png\\" }";

action createAsset = action(
permission_level{author, "active"_n},
SIMPLEASSETSCONTRACT,
"create"_n,
std::make_tuple( author, category, owner, idata, mdata, 1 )

);

createAsset.send();

搜索资产并获取资产信息

  1. 请添加有关资产结构的hpp文件信息。

警告! CDT目前有一个不允许编译的漏洞(v1.6.1)。1.5.0也有一个漏洞“Segmentation fault(core dumped)”,但只有abi可生成(包括self对象数组:std :: vector container;)

TABLE account {

uint64_t id;
name author;
asset balance;
uint64_t primary_key()const {
return id;

}

};

typedef eosio::multi_index\< "accounts"_n, account \> accounts;

TABLE sasset {

uint64_t id;
name owner;
name author;
name category;
string idata;
string mdata;
std::vector\<sasset\> container;
std::vector\<account\> containerf;
auto primary_key() const {
return id;

}

uint64_t by_author() const {

return author.value;

}

};

typedef eosio::multi_index\< "sassets"_n, sasset,

eosio::indexed_by\< "author"_n, eosio::const_mem_fun\<sasset, uint64_t,
&sasset::by_author\> \>

\> sassets;
  1. 搜索和使用信息
name SIMPLEASSETSCONTRACT = "simpleassets"_n;
name author = get_self();
name owner = "lioninjungle"_n;
uint64_t assetid = 100000000000187
sassets assets(SIMPLEASSETSCONTRACT, owner.value);
auto idx = assets.find(assetid);
check(idx != assets.end(), "Asset not found or not yours");
check (idx-\>author == author, "Asset is not from this author");
auto idata = json::parse(idx-\>idata); // for parsing json here is used nlohmann
lib
auto mdata = json::parse(idx-\>mdata); // https://github.com/nlohmann/json
check(mdata["cd"] \< now(), "Not ready yet for usage");

更新资产

name SIMPLEASSETSCONTRACT = "simpleassets"_n;
auto mdata = json::parse(idxp-\>mdata);
mdata["cd"] = now() + 84600;
name author = get_self();
name owner = "ownerowner22"_n;
uint64_t assetid = 100000000000187;
action saUpdate = action(
permission_level{author, "active"_n},
SIMPLEASSETSCONTRACT,
"update"_n,
std::make_tuple(author, owner, assetid, mdata.dump())

);

saUpdate.send();

转移一个资产

name SIMPLEASSETSCONTRACT = "simpleassets"_n;
name author = get_self();
name from = "lioninjungle"_n;
name to = "ohtigertiger"_n;
std::vector\<uint64_t\> assetids;
assetids.push_back(assetid);
string memo = "Transfer one asset";
action saUpdate = action(
permission_level{author, "active"_n},

SIMPLEASSETSCONTRACT,
"transfer"_n,
std::make_tuple(from, to, assetids, memo)
);

saUpdate.send();

将两个资产转移到具有相同备忘录的同一接收器

name SIMPLEASSETSCONTRACT = "simpleassets"_n;
name author = get_self();
name from = "lioninjungle"_n;
name to = "ohtigertiger"_n;
std::vector\<uint64_t\> assetids;
assetids.push_back(assetid1);
assetids.push_back(assetid2);
string memo = "Transfer two asset"
action saUpdate = action(
permission_level{author, "active"_n},
SIMPLEASSETSCONTRACT,
"transfer"_n,
std::make_tuple(from, to, assetids, memo)
);

saUpdate.send();

issuef创建代币问题(可替代代币)

name SIMPLEASSETSCONTRACT = "simpleassets"_n;
asset wood;
wood.amount = 100;
wood.symbol = symbol("WOOD", 0);
name author = get_self();
name to = "lioninjungle"_n;
std::string memo = "WOOD faucet";
action saRes1 = action(
permission_level{author, "active"_n},

SIMPLEASSETSCONTRACT,
"issuef"_n,
std::make_tuple(to, author, wood, memo)
);

saRes1.send();

如果启用了authorctrl,则由创建者转让代币(可替代)

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

asset wood;
wood.amount = 20;
wood.symbol = symbol("WOOD", 0);
name from = "lioninjungle"_n;
name to = get_self();
name author = get_self();
std::string memo = "best WOOD";
action saRes1 = action(
permission_level{author, "active"_n},
SIMPLEASSETSCONTRACT,
"transferf"_n,
std::make_tuple(from, to, author, wood, memo)

);

saRes1.send();

如果启用了authorctrl,则由创建者烧录代币(可替代)

name SIMPLEASSETSCONTRACT = "simpleassets"_n;
asset wood;
wood.amount = 20;
wood.symbol = symbol("WOOD", 0);
name author = get_self();
name from = "lioninjungle"_n;
std::string memo = "WOOD for oven";
action saRes1 = action(
permission_level{author, "active"_n},
SIMPLEASSETSCONTRACT,
"burnf"_n,
std::make_tuple(from, author, wood, memo)

);

saRes1.send();


更新日志v1.1.0

*代码重构 *修复了为委托和转让的NFTs的分离批量处理功能 *新合约允许延长借用NFT的委托期限 *增加了外部(bash)单元测试

更改日志v1.0.1

  • createlog 操作中的新参数 requireclaim,用于 create 操作历史记录日志。

更改日志v1.0.0

  • 阻止所有者向自己提供资产

更改日志v0.4.2

  • saeclaim 事项的格式已更改:由map <assetid,from>替换asseti数组

更改日志v0.4.1

  • 添加了require_recipient(所有者)来执行create操作

更改日志v0.4.0

轻松找到可替代代币的信息(可替换代币有创建者范围):

  • FT的 account 表中的新字段 author。 (更容易找到可替代代币信息)

更多可替代代币信息

  • 新领域 datacurrency_stats 的表-字符串化JSON其中可能包括键 imgname(建议最好通过市场显示)

  • 新参数datacreatef 操作中

  • updatef改变FT的新举措data

提供/声明可替代的代币

========

한국어

심플에셋 (SimpleAssets)

EOSIO 블록체인 상의 (대체 가능 코인과 불가능 코인—NFT를 모두 포함한) 디지털 자산을 위해, Cryptolions가 고안해 낸 간편 표준

Web: http://simpleassets.io Git: https://github.com/CryptoLions/SimpleAssets Telegram: https://t.me/simpleassets

EOS 메인넷 계정: simpleassets MEETONE 메인넷 계정: smplassets.m TELOS 메인넷 계정: simpleassets

소개 & 데모: https://medium.com/@cryptolions/introducing-simple-assets-b4e17caafaa4

작성자들을 위한 이벤트 리시버 예시: https://github.com/CryptoLions/SimpleAssets-EventReceiverExample

주의! 현재 CDT는 v1.6.1에서는 컴파일이 되지 않는 버그가 있습니다. v1.5.0 역시 abi generation 시 "Segmentation fault (core dumped)" 버그가 발생합니다. 컨트랙트 컴파일 시 v1.5.0와 저희가 제공하는 abi를 사용하실 것을 추천합니다.


심플에셋을 사용하는 데에는 두 가지 방법이 있습니다.

  1. 외부 소유권 권한자(ownership authority)로 사용합니다. EOS 체인에 배포됨과 함께, 심플에셋은 다른 Dapp들이 자신들의 디지털 자산을 관리하기 위해 호출할 수 있는 별개의 컨트랙트가 됩니다. 이는 자산의 소유권이 신뢰할 수 있는 외부 권한자에 의해 관리될 수 있도록, 그리고 생성과 동시에 해당 Dapp이 자산의 mdata만을 관리할 수 있도록 하는 추가적인 보장책을 해당 Dapp 사용자들에게 제공합니다. 소유권과 관련한 모든 기능들은 외부에 존재하게 됩니다.

    EOS 메인넷 계정: simpleassets

  2. 각 Dapp은 자신만의 심플에셋 사본을 배포할 수 있으며, 각 기능에 대해 더 큰 통제권을 가질 수 있도록 수정을 적용할 수 있습니다. 우리는 이를, Dapp이 그 자신의 "ownership authority"로서 작동하는 사례로 보고 있습니다. 배포에 앞서, 심플에셋은 누군가가 자산을 생성하는 것을 막도록 수정되어야 합니다.


RAM 사용량

NFT의 RAM 사용량은 idata와 mdata 필드에 얼마나 많은 데이터가 있는지에 의해 정해집니다. 두 영역 모두가 비어있다면, 각 NFT는 276byte를 차지합니다.

imdata와 mdata의 각 기호들은 1 byte 씩을 차지합니다.


목차:

  1. 컨트랙트 액션
  2. 데이터 구조
  3. 예시: 스마트 컨트랙트에서 심플에셋 사용하기
  4. 변경 로그

컨트랙트 액션

각 파라미터에 대한 설명은 다음 링크에서 찾아볼 수 있습니다. https://github.com/CryptoLions/SimpleAssets/blob/master/include/SimpleAssets.hpp

# -- For Non-Fungible Tokens ---

create			(author, category, owner, idata, mdata, requireсlaim)
update			(author, owner, assetid, mdata)
transfer		(from, to , [assetid1,..,assetidn], memo)
burn			(owner, [assetid1,..,assetidn], memo)

offer			(owner, newowner, [assetid1,..,assetidn], memo)
canceloffer		(owner, [assetid1,..,assetidn])
claim			(claimer, [assetid1,..,assetidn])

regauthor		(name author, data, stemplate)
authorupdate	(author, data, stemplate)

delegate  		(owner, to, [assetid1,..,assetidn], period, memo)
undelegate  	        (owner, from, [assetid1,..,assetidn])
delegatemore		(owner, assetid, period)  

attach  		(owner, assetidc, [assetid1,..,assetidn])
detach  		(owner, assetidc, [assetid1,..,assetidn])

attachf  		(owner, author, quantity, assetidc)
detachf  		(owner, author, quantity, assetidc)

# -- For Fungible Tokens ---

createf  		(author, maximum_supply, authorctrl, data)
updatef 		(author, sym, data)
issuef  		(to, author, quantity, memo)
transferf 		(from, to, author, quantity, memo)
burnf 			(from, author, quantity, memo)
  
offerf 			(owner, newowner, author, quantity, memo)
cancelofferf 	(owner, [ftofferid1,...,ftofferidn])
claimf 			(claimer, [ftofferid1,...,ftofferidn])
 
openf  			(owner, author, symbol, ram_payer)
closef  		(owner, author, symbol)

데이터 구조

자산

sasset {
	uint64_t  	id; 		// asset id used for transfer and search;
	name  		owner;  	// asset owner (mutable - by owner!!!);
	name  		author;  	// asset author (game contract, immutable);
	name  		category;  	// asset category, chosen by author, immutable;
	string  	idata;  	// immutable assets data. Can be stringified JSON or just sha256 string;
	string  	mdata;  	// mutable assets data, added on creation or asset update by author. Can be
							// stringified JSON or just sha256 	string;
	sasset[] 	container;  // other NFTs attached to this asset
	account[]  	containerf; // FTs attached to this asset
}

// Markets에서 사용될 자산 이름 img desc에 대한 idata 혹은 mdata 정보를 포함시켜 주세요.

오퍼

offers {
	uint64_t  	assetid;  	// asset id offered for claim ;
	name  		owner;  	// asset owner;
	name 		offeredto;  // who can claim this asset ;
	uint64_t  	cdate;  	// offer create date;
}

작성자

authors {
	name  		author; 	// assets author, who will be able to create and update assets;
	string  	data; 		// author’s data (json) will be used by markets for better display;
				 	// recommendations: logo, info, url;
	string	stemplate;		// data (json) schema for third-party markets. 
					// key: state values, where key is the key from mdata or idata;  
					// recommended values: txt, img, url, hide, webgl, mp3, video, timestamp;  
}

위임자

delegates{
	uint64_t  	assetid;  	// asset id offered for claim;
	name  		owner;  	// asset owner;
	name  		delegatedto;// who can claim this asset;
	uint64_t 	cdate;  	// offer create date;
	uint64_t 	period;  	// Time in seconds that the asset will be lent. Lender cannot undelegate until
					// the period expires, however the receiver can transfer back at any time.
}

화폐 통계 (대체 가능 토큰)

stat {
	asset  		supply;  	// Tokens supply
	asset  		max_supply; // Max token supply
	name  		issuer;  	// Fungible token author
	uint64_t  	id; 		// Unique ID for this token
	bool  		authorctrl; // if true(1) allow token author (and not just owner) to burn and transfer.
	string  	data;  		// stringified json. recommended keys to include: `img`, `name`
}

계정 (대체 불가능 토큰)

accounts {
	uint64_t  	id;  		// token id, from stat table
	name 		author;  	// token author
	asset	  	balance;	// token balance
}
sofferf {

	uint64_t  	id;  		// id of the offer for claim (increments automatically)
	name  		author;  	// ft author
	name  		owner;  	// ft owner
	asset  		quantity;  	// quantity
	name  		offeredto;  // account who can claim the offer
	uint64_t  	cdate;  	// offer creation date
}

예시: 스마트 컨트랙트에서 심플에셋 사용하기

자산을 생성해 소유자 계정 ownerowner22으로 전송하기:

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

name author = get_self();
name category = "weapon"_n;
name owner = "ownerowner22"_n;
string idata = "{\"power\": 10, \"speed\": 2.2, \"name\": \"Magic Sword\" }";
string mdata = "{\"color\": \"bluegold\", \"level\": 3, \"stamina\": 5, \"img\": \"https://bit.ly/2MYh8EA\" }";

action createAsset = action(
		permission_level{author, "active"_n},
		SIMPLEASSETSCONTRACT,
		"create"_n,
		std::make_tuple( author, category, owner, idata, mdata,  0 )
);
createAsset.send();

requireclaim 옵션으로 ownerowner22에 자산 생성하기:

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

name author = get_self();
name category = "balls"_n;
name owner = "ownerowner22"_n;
string idata = "{\"radius\": 2, \"weigh\": 5, \"material\": \"rubber\", \"name\": \"Baseball\" }";
string mdata = "{\"color\": \"white\", \"decay\": 99, \"img\": \"https://i.imgur.com/QoTcosp.png\" }";

action createAsset = action(
		permission_level{author, "active"_n},
		SIMPLEASSETSCONTRACT,
		"create"_n,
		std::make_tuple( author, category, owner, idata, mdata, 1 )
);
createAsset.send();

자산의 검색과 자산 정보 가져오기

  1. 자산 구조에 관한 hpp 파일을 추가하십시오.

주의! 현재 CDT는 v1.6.1에서는 컴파일이 되지 않는 버그가 있습니다. v1.5.0 역시 abi generation에 한해 (객체 자신의 배열 포함 : std::vector container;) "Segmentation fault (core dumped)" 버그가 발생합니다.

TABLE account {
		uint64_t  	id;
		name  	  	author;
		asset  	  	balance;

		uint64_t primary_key()const {
			return id;
		}
};
typedef eosio::multi_index< "accounts"_n, account > accounts;

TABLE sasset {
		uint64_t  				id;
		name  					owner;
		name  					author;
		name  					category;
		string  				idata;
		string  				mdata;
		std::vector<sasset>  	container;
		std::vector<account>  	containerf;

		auto primary_key() const {
			return id;
		}
		
		uint64_t by_author() const {
			return author.value;
		}
};

typedef eosio::multi_index< "sassets"_n, sasset,
		eosio::indexed_by< "author"_n, eosio::const_mem_fun<sasset, uint64_t, &sasset::by_author> >
> sassets;
  1. 정보의 검색 및 사용
name SIMPLEASSETSCONTRACT = "simpleassets"_n;
name author = get_self();
name owner = "lioninjungle"_n;
  
uint64_t assetid = 100000000000187

sassets assets(SIMPLEASSETSCONTRACT, owner.value);
auto idx = assets.find(assetid);

check(idx != assets.end(), "Asset not found or not yours");

check (idx->author == author, "Asset is not from this author");

auto idata = json::parse(idx->idata);  // for parsing json here is used nlohmann lib
auto mdata = json::parse(idx->mdata);  // https://github.com/nlohmann/json

check(mdata["cd"] < now(), "Not ready yet for usage");

자산 업데이트

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

auto mdata = json::parse(idxp->mdata);
mdata["cd"] = now() + 84600;

name author = get_self();
name owner = "ownerowner22"_n;
uint64_t assetid = 100000000000187;

action saUpdate = action(
		permission_level{author, "active"_n},
		SIMPLEASSETSCONTRACT,
		"update"_n,
		std::make_tuple(author, owner, assetid, mdata.dump())
);
saUpdate.send();

자산 하나 전송하기

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

name author = get_self();
name from = "lioninjungle"_n;
name to = "ohtigertiger"_n;

std::vector<uint64_t> assetids;
assetids.push_back(assetid);

string memo = "Transfer one asset";

action saUpdate = action(
		permission_level{author, "active"_n},
		SIMPLEASSETSCONTRACT,
		"transfer"_n,
		std::make_tuple(from, to, assetids, memo)
);
saUpdate.send();

동일한 메모가 첨부된 자산 두 개를 동일한 수신자에게 전송하기

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

name author = get_self();
name from = "lioninjungle"_n;
name to = "ohtigertiger"_n;

std::vector<uint64_t> assetids;
assetids.push_back(assetid1);
assetids.push_back(assetid2);

string memo = "Transfer two asset"

action saUpdate = action(
		permission_level{author, "active"_n},
		SIMPLEASSETSCONTRACT,
		"transfer"_n,
		std::make_tuple(from, to, assetids, memo)
);
saUpdate.send();

issue로 생성된 토큰에 대한 issuef (대체 가능 토큰)

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

asset wood;
wood.amount = 100;
wood.symbol = symbol("WOOD", 0);

name author = get_self();
name to = "lioninjungle"_n;

std::string memo = "WOOD faucet";
action saRes1 = action(
		permission_level{author, "active"_n},
		SIMPLEASSETSCONTRACT,
		"issuef"_n,
		std::make_tuple(to, author, wood, memo)
);
saRes1.send();

authorctrl이 사용 가능한 경우의, 작성자에 의한 transferf (대체 가능 토큰)

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

asset wood;
wood.amount = 20;
wood.symbol = symbol("WOOD", 0);

name from = "lioninjungle"_n;
name to = get_self();
name author = get_self();

std::string memo = "best WOOD";
action saRes1 = action(
		permission_level{author, "active"_n},
		SIMPLEASSETSCONTRACT,
		"transferf"_n,
		std::make_tuple(from, to, author, wood, memo)
);
saRes1.send();

authorctrl이 사용 가능한 경우의, 작성자에 의한 burnf (대체 가능 토큰)

name SIMPLEASSETSCONTRACT = "simpleassets"_n;

asset wood;
wood.amount = 20;
wood.symbol = symbol("WOOD", 0);

name author = get_self();
name from = "lioninjungle"_n;

std::string memo = "WOOD for oven";
action saRes1 = action(
		permission_level{author, "active"_n},
		SIMPLEASSETSCONTRACT,
		"burnf"_n,
		std::make_tuple(from, author, wood, memo)
);
saRes1.send();

변경 로그 v1.0.1

  • 내부적으로 create 액션 히스토리 로그에 이용되는 새로운 파라미터 requireclaimcreatelog 액션에 추가됨.

변경 로그 v1.0.0

  • 자기 자신에게 자산을 오퍼하는 소유자 블록 처리

변경 로그 v0.4.2

  • saeclaim 이벤트의 포멧 변경: assetids 배열이 map <assetid, from>으로 대체됨

변경 로그 v0.4.1

  • create 액션에 require_recipient(owner) 추가

변경 로그 v0.4.0

대체 가능 코인 정보를 보다 쉽게 찾을 수 있게 됨 (대체 가능 코인이 scope author를 가짐):

  • FT를 위해 account 테이블에 새 필드 author가 추가됨. (대체 가능 코인 정보를 보다 쉽게 찾을 수 있음)

추가된 대체 가능 코인 정보:

  • currency_stats 테이블에 새로운 필드 data가 추가됨 - 키 img, name을 포함할 수도 있는 json을 스트링화 (시장을 통한 개선된 디스플레이를 위해 권장)
  • createf 액션에 새로운 파라미터 data가 추가됨
  • FT data를 변경하기 위한 새로운 액션 updatef가 추가됨

대체 가능 토큰 오퍼/클레임

  • offer/claim FT에 사용되는 새로운 테이블 sofferf가 추가됨
  • 새로운 액션 offerf, cancelofferf, claimf가 추가됨
  • 개방된 오퍼가 없을 경우 (내부) closef에 대해 검사

자산 컨테이너라이징 주의! 현재 CDT는 v1.6.1에서는 컴파일이 되지 않는 버그가 있습니다. v1.5.0 역시 abi generation 시 "Segmentation fault (core dumped)" 버그가 발생합니다. 추천: 컨트랙트 컴파일 시 v1.5.0와 저희가 제공하는 abi를 사용하실 것을 추천합니다.

  • 다른 NFT 및 FT의 어태치와 디태치를 위해 새로운 필드 containercontainerf가 NFT 자산 구조에 추가됨
  • 새로운 액션 attach, detach가 추가됨
  • 새로운 액션 attachf, detachf가 추가됨

기타

  • global 테이블 내 필드 이름 변경됨 lastid -> 'lnftid, 'spare -> defid (내부용)
  • soffer 테이블 내 offeredTo 필드의 이름이 offeredto로 변경됨

변경 로그 v0.3.2

  • offer 액션에 memo 파라미터 추가;
  • delegate 액션에 memo 파라미터 추가;

변경 로그 v0.3.1

  • NFT를 위한 내부 액션 createlog를 추가함. create 액션에 의해 사용되며, assetid를 기록하여 제 3자 탐색자가 새로운 자산 id와 기타 정보를 손쉽게 얻을 수 있도록 함.
  • 새로운 싱글톤 테이블 tokenconfigs를 추가함. 이는 외부 컨트랙트 파스 액션과 테이블을 도움 (탈중앙화 교환소, 시장, 및 다수의 토큰을 사용하는 기타 컨트랙트에 유용). 시장, 교환소, 및 기타 유관 컨트랙트는 다음 코드를 이용해 이 정보를 열람할 수 있음.
Configs configs("simpleassets"_n, "simpleassets"_n.value);
configs.get("simpleassets"_n);

변경 로그 v0.3.0

  • 유예된 거래를 이용한 이벤트 알림이 추가됨. 자산 작성자는 자산의 생성, 전송, 클레임, 소각에 대한 알림을 받게됨. 알림을 받기 위해선 작성자 컨트랙트에 다음을 입력 해야함:
ACTION saecreate ( name owner, uint64_t assetid );
ACTION saetransfer ( name from, name to, std::vector<uint64_t>& assetids, std::string memo );
ACTION saeclaim  ( name account, std::vector<uint64_t>& assetids );
ACTION saeburn ( name account, std::vector<uint64_t>& assetids, std::string memo );
  • delegate 액션과 sdelegates 테이블에 대한 untildate 파라미터가 period (초 단위)로 변경됨

변경 로그 v0.2.0

다소 변경된 eosio.token 컨트랙트를 이용하는 로직과 대체 가능 토큰 테이블 추가

  • 새로운 액션 및 로직 추가: createf, issuef, transferf, burnf, openf, closef
  • 새로운 테이블 stat(supply, max_supply, issuer, id)accounts (id, balance) 추가됨.
  • stats 테이블(대체 가능 토큰들에 관한 정보)을 위한 scope가 작성자로 변경됨
  • accounts 테이블의 기본 인덱스는 creates 액션에 생성되고 stats 테이블에 저장된 uniq id임.
  • authorctrl 파라미터를 가진 대체 가능 코인을 위해 stats 테이블에 createf 액션이 추가됨. 이것이 참(1)인 경우, 토큰 작성자(소유자가 아님)가 burnf과 transferf를 할 수 있음. 생성 후에는 변경할 수 없음!
  • 리카르디안 컨트랙트 업데이트
  • 더 많은 예시 추가

변경 로그 v0.1.1

기타

  • sdelagate 테이블 구조의 이름이 sdelegate로 변경됨 (오타)
  • create 액션 파라미터의 이름이 변경됨: requireClaim -> require claim
  • 모든 액션에 대한 assetID 액션 파라미터의 이름이 assetid로 변경됨

대출 자산

  • sdelegate 테이블 - 새 필드 추가됨: luntildate
  • delegate 액션에 untildate 파라미터 추가됨. 파라미터가 올바르게 입력된 경우 (0이거나 미래에) 액션은 단순 검사를 시행함.
  • undelegate는 untildate에 이르기 전까지는 작동하지 않음 (이는 자산 대출에 최소 기간을 보장함).
  • 위임된 경우, untiltime 보다 일찍 자산을 재전송(반납)하는 것을 허용 (대출자는 일찍 반납할 수 있는 옵션을 가짐)

배치 프로세싱

  • 클레임(claim) 액션: assentid 파라미터가 assetsids의 배열로 변경됨. 복수 클레임 로직 추가됨.

  • 오퍼(offer) 액션: assentid 파라미터가 assetsids의 배열로 변경됨. 복수 오퍼 로직 추가됨.

  • 오퍼 취소(canceloffer) 액션: assentid 파라미터가 assetsids의 배열로 변경됨. 복수 취소 로직 추가됨.

  • 전송(transfer) 액션: assentid 파라미터가 assetsids의 배열로 변경됨. 복수 전송 로직 추가됨.

  • 소각(burn) 액션: assentid 파라미터가 assetsids의 배열로 변경됨. 복수 소각 로직 추가됨.

  • 위임/위임취소(delegate/undelegate) 액션: assentid 파라미터가 assetsids의 배열로 변경됨. 복수 위임/위임취소 로직 추가

  • sofferf 用于offer / calimFT的新表

  • 新的操作offercancelofferfclaimf

  • closef 检查如果没有公开招股(内部)

集装资产

警告!!! CDT目前有一个不被允许在v1.6.1上编译的漏洞。 1.5.0也有一个漏洞“Segmentation fault(core dumped)”,但只有abi生效。

建议:使用1.5.0进行合约编译,并使用我们的abi。

  • nft资产结构中用于附加和分离其他NFT或FT的新字段“container”和“containerf”

  • 新操作 attachdetach

  • 新操作 attachfdetach

杂项

  • 字段重命名 lasted- > lnftidspare- > defid(内部用法)在表 global

  • 字段 providedTosoffer 表中重命名为 offersto


更改日志v0.3.2

  • 为操作 offer 添加了 memo 参数;

  • 为操作 delegate 添加了 memo 参数;


更改日志v0.3.1

  • 增加了NFT的内部操作 createlog 。由创建操作用于记录资产ID,以便第三方资源管理器可以轻松获取新的资产ID和其他信息。

  • 增加了新的单例表 tokenconfigs。它有助于外部合约正确解析操作和表格(对于分散交换,市场和使用多个代币的其他合约有用)。市场,交易所和其他依赖合约将能够使用以下代码查看此信息。

Configs configs("simpleassets"_n, "simpleassets"_n.value);

configs.get("simpleassets"_n);

更改日志v0.3.0

  • 使用延迟事务添加了事件通知。资产作者将收到有关资产创建,转移,索赔或烧录的通知。要收到它,请为您的创建者合约添加以下操作:
ACTION saecreate ( name owner, uint64_t assetid );

ACTION saetransfer ( name from, name to, std::vector\<uint64_t\>& assetids,
std::string memo );

ACTION saeclaim ( name account, std::vector\<uint64_t\>& assetids );

ACTION saeburn ( name account, std::vector\<uint64_t\>& assetids, std::string
memo );
  • untildate 参数更改为 period(以秒为单位)的操作 delegate 和表 sdelegates

更改日志v0.2.0

使用eosio.token合约添加了可替代代币(Fungible Token)表和逻辑,但有一些更改

  • 新的操作和逻辑:createfissueftransferburnfopenfclosef

  • 添加了新表 stat(supply, max_supply, issuer, id)accounts (id, balance)

  • 统计表的范围(关于可替代代币的信息)已更改为创建者

  • accountstable 的主索引是在 create f操作上创建的 uniq id 并存储在 stats 表中。

  • 添加 createfparameter 可替代代币操作 authorctrlstats 表。如果为true(1)允许代币创建者(而不仅仅是所有者)使用burnf和transferf。创建后无法更改!

  • 李嘉图合约已更新

  • 以下有更多用法示例


更改日志v0.1.1

杂项

  • sdelagate 表结构重命名为 sdelegate(typo)

  • 创建操作参数重命名:requireClaim - > requireclaim

  • assetID操作参数在所有要声明的操作中重命名

借入资产

  • sdelegate表 - 添加了新字段:untildate

  • 委托操作添加参数untildate。如果参数输入正确(零或将来),操作会进行简单检查。

  • undelegate在不公开之前不会工作(这保证了资产贷款的最低期限)。

  • 如果被委托,允许转移资产(返还)早于截至时间(借款人可以提前返还)

批量处理

  • 声明操作(claim action):assetid参数已更改为assetsids数组。添加了多个声明逻辑。

  • 报价操作(offer action):assetid参数已更改为assetsids数组。添加了多个提供逻辑。

  • 取消报价操作(canceloffer action):assetid参数已更改为assetsids数组。添加了多个取消逻辑。

  • 传输操作(transfer action):assetid参数已更改为assetsids数组。添加了多个资产转移逻辑。

  • 烧录操作(burn action):assetid参数已更改为assetsids数组。添加了多个刻录逻辑。

  • 委托/非委托操作(delegate / undelegated action):assetid参数已更改为assetsids数组。添加了多个委托/取消授权逻辑。

You can’t perform that action at this time.