Xar Network is ready to upgrade to dora_hub_2. It contains several updates, removals, and bugfixes.

Updates

dora_hub_2 includes the following feature upgrades:

• New token life cycle management via /x/denominations
• Denominations are managed via parameters controlled by governance
• Nominee modules added to /x/csdt, /x/denominations, /x/markets, /x/oracle for management
• All configs moved to parameters that can be changed via governance
• Added governance parameter proposals that can change parameters via governance votes
• Oracles are managed per asset instead of globally
• CSDTs can mint multi asset denoms, no longer has to be ucsdt
• Message types for nominees added into Oracles
• Liquidator module refactored to use module accounts instead of bank keeper
• Auction moved to used params and moved away from global variables
• Issue module refactored to use module accounts instead of bank keeper
• CSDTs split into deposit collateral, withdraw collateral, settle debt, and withdraw debt
• Order module refactored to use module accounts instead of bank keeper
• Freeze accounts share module account templates instead of embedded accounts
• REST interface added for CSDT
• All REST calls return current height as first parameter
• CLI tools added for all asset types and CSDT types
• Added nominees to manage CSDT collateral
• Add parameter fees to all modules, set default fees to 0

Removals

The following modules were moved to a WIP branch pending their finalisation:

• Compound
• Deposit
• Escrow
• Lock
• Futures
• Pool
• Uniswap

Bug fixes

dora_hub_2 contain a few other improvements:

• Export tool updated to support different hub versions
• PrettyPrint mappings removed on denominations list call
• Gas timeout issue fixed in CreateModifyDeleteCSDT
• Gas timeout issue fixed in ForwardReverseAuction

Linting

• All message objects have been standardized to lowercase yaml/json

Devops

• Travis-CI integrated for all automated builds, moved away from circle CI

Unit tests

• All units now have coverage, but there is still quite a bit to cover, the current code coverage profile has been published
• Code coverage improved from 22% to 54%

Code standards

• The codebase has an A+ rating on goreportcard and GolangCI

SDKs

The @xar-network\javascript-sdk was updated to 2.17.3 and include the following upgrades:

• Token management was added as a stand alone module
• Issuer, authority, and liquidity provider were removed
• Record module was added
• CSDT module was added with support for the new type calls
• Oracle types were added
• Getters for most parameters were added

Code Examples

The Code Examples repo was deployed with coverage for most javascript examples. Current modules covered include:

• Token Management
• Chain Basics
• Oracles
• CSDTs
• Recording

– Picture by Carol M Highsmith on Rawpixel