Release Note — Sprint 0.0.6

MCS Token Official
YGGDRASH = MCS Token
3 min readSep 21, 2018

Hello, World!

Greetings from Team YGGDRASH.

We are here to notify the update on the Sprint 0.0.6 to our YGGDRASHERS.

Details of the updates can be found on Github :

https://github.com/yggdrash/yggdrash/releases/tag/v0.0.6

YGGDRASH Release Note

Node

Designed the Stem branch and configured genesis

Added the BranchGroup for executing the multiple chains

Configured dynamic branch preferences

Added BlockChainBuilder when adding a new branch

Separated the role of NodeManager and BranchGroup

Implemented to load and execute stored transactions when starting a node

Implemented to execute the genesis of Stem or YEED contract when starting a node

Implemented to prevent ConcurrentModificationException in the transaction store

Implemented indexing of block store

Modified the flow of TransactionBody execution

Modified the format of branch.json

Modified the format of genesis.json and genesis implementation

  • The genesis method of contract can be executed only once when the node first starts to run
  • Generate the genesis method of StemContract with the params when creating GenesisBlock by branch-stem.json
  • The first index of params in genesis.json has changed to the array
  • The operator and frontier properties of genesis.json each has changed to method and params.

Configured docker image build in the docker-compose.yml

Added docker deployment script and staging step in the bitbucket pipeline

Configured docker volume for the node container

Network

Added PeerGroup for peer and channel management

Added block synchronization and broadcasting for each branch

Implemented preventing block generation when synchronizing blocks and transactions

Moved GRpc server and client channel functionality to node project

Contract

Added a Contract abstract class

Refactored the StateStore to implement the Store interface for using generics

Available to use different attribute stores for each contract

Implemented StemContract

  • Added a BaseContract class that implements the contract interface
  • Implemented four basic methods of StemContract such as create, update, search, and view

Added StemContract owner validation

  • Check whether the issuer of the transaction is the owner when registering and updating branch

API

Updated TransactionApi by reflecting the modifications of the node

Updated the jsonrpc-api.md

Added Contract API interface

Implemented the Contract API

  • Available querying to StemContract

Implemented retrieving all transactions

Implemented retrieving the latest block

Implemented retrieving the blocks by offset and limit

Implemented retrieving the status by branches

Implemented WebSocket for pushing blocks and transactions in real time.

CLI

Implemented creating a transaction with JavaScript

Implemented create and view an account

  • View balance

Implemented generating branch.json with seed.json, which is the stem’s config file

  • Register branch to stem with generated branch.json file

Implemented transferring YEED coin

Explorer

Applied Vue.js framework

Implemented retrieving blocks, transactions, and state in multiple chains

Implemented retrieving data in real-time using web socket streaming

Applied reactive design

Please check out the demo video we uploaded on YouTube that displays the test screen of a node, the implementation of CLI, the API, the contract, and the YGGDRASH explorer.

https://youtu.be/GadTB1mc7Ac

Thank you for your ongoing support and faith in YGGDRASH Project.

<Team YGGDRASH>

Official YEED Smart Contract Address:

0xca2796f9f61dc7b238aab043971e49c6164df375

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MCS Token Official
YGGDRASH = MCS Token

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