DRC_standards

Dfinity Request for Comments

It is recommended to upgrade Tokens or Dexs that use DRC20, DRC202, DRC205 codes to the latest version.

Note: Check the data structure before upgrading to prevent data loss.

Compatibility Token Standard Namespace Convention

2022-3-2: Drafted.
2022-12-5: Stable standard.
Specification: https://github.com/iclighthouse/DRC_standards/tree/main/CTSNC

DRC20: Fungible Token Standard

2021-11-13: Drafted standard.
2021-11-23: Implemented the example with motoko.
2022-3-2: Improved compatibility, implemented DIP20 compatible example; added upgrade function.
2022-3-25: Refactoring example code; Using Trie instead of HashMap; Implementing DRC202. (Notes: This version is not compatible with the previous version and upgrading will result in data loss.)
2022-8-11: Examples are compatible with ICRC-1 standard.
2022-8-17: Method fee() replaces gas(); Upgraded examples.
2022-8-21: Use the "drc20_" prefix as the standard method name.
2022-11-20: Add drc20_transferBatch() method; Modify the length of _data to a maximum of 2KB; Modified Example.
2022-12-5: Modified Example.
2022-12-6: Stable standard.
2023-3-20: Modified Example.
2023-5-17: Modify Example (support ICRC2).
2023-5-31: Fix DRC202.
2023-6-1: Fix Example.
2023-10-20: Upgrade DRC202.
2023-11-2: Fix ICRC2.
2023-11-18: Fix allowance.
2024-02-11: Upgrade DRC20 Example.

Standard: https://github.com/iclighthouse/DRC_standards/tree/main/DRC20
Example: https://github.com/iclighthouse/DRC_standards/tree/main/DRC20/examples/ICLighthouse
Comments: #1;

DRC201: Governable Token Standard

TODO: Standard drafting and motoko example implementation

DRC202: Token Transaction Records Storage Standard

2022-1-3: Drafted standard.
2022-1-17: Implemented the example with motoko.
2022-3-25: Improved some features; provided Motoko module; wrote sample code; improved documentation.
2022-8-11: Upgrade examples.
2022-11-3: Add txnHistory() and txnBytesHistory().
2022-11-20: Upgrade store() for batch storage of records into Bucket of DRC202.
2022-11-28: Add txnHash().
2022-12-5: Add txnBytesHash(); Modify Example.
2023-2-2: Fix type description; Modify Example.
2023-5-17: Add bucketList(); del bucketInfo(); modify Example.
2023-5-17: Completed stable version.
2023-5-22: Add location(); modify Example.
2023-5-31: Fix txnByAccountId().
2023-6-1: del txnBytesHash().
2023-10-20: add ICRC1 record syncing; modify DRC202 Module; support composite queries (moc 0.9.4).
2024-02-11: fix Bloom issue and getArchivedTokenTxns().

Standard: https://github.com/iclighthouse/DRC_standards/tree/main/DRC202
Example: https://github.com/iclighthouse/DRC_standards/tree/main/DRC202/examples/ICLighthouse
Comments: #4;

DRC205: Swap Transaction Records Storage Standard

2022-3-10: Drafted standard.
2022-3-25: Implemented the example with motoko.
2022-8-11: Upgrade examples. 2022-9-20: Update the data structure TxnRecord.
2022-11-3: Add txnHistory() and txnBytesHistory().
2022-11-20: Upgrade store() for batch storage of records into Bucket of DRC205.
2022-11-28: Add txnHash(); fix bugs.
2022-12-5: Add txnBytesHash(); Modify Example.
2023-2-2: Fix type description; Modify Example.
2023-5-17: Add bucketList(); del bucketInfo(); modify Example.
2023-5-22: Add location(); modify Example.
2023-5-31: Fix txnByAccountId().
2023-6-1: del txnBytesHash().
2023-10-20: modify DRC202 Module; support composite queries (moc 0.9.4).
2024-02-11: fix Bloom issue and getArchivedDexTxns().

Standard: https://github.com/iclighthouse/DRC_standards/tree/main/DRC205
Example: https://github.com/iclighthouse/DRC_standards/tree/main/DRC205/examples/ICLighthouse

DRC207: Monitorable Canister standards

2022-9-20: Implemented the example with motoko.
2023-10-20: Drafted standard.

Community

Twitter: @ICLighthouse
Medium: https://medium.com/@ICLighthouse
Discord: https://discord.gg/FQZFGGq7zv