Rosetta SDK

NodeJS Rosetta SDK to create and interact with Rosetta API Implementations

RosettaSDK (JS) [experimental]

Supported Rosetta Protocol Version: 1.4.1

This project is a port of the official Go reference implementation. All features, except a few exceptions, have been ported to JS.

Motivation

Coinbase's Official Go Reference Implementation is a thouroughly tested and wonderful SDK Implementation. However, as many developers are better suited to use NodeJS/Javascript, DigiByte decided to port the reference implementation to NodeJS while maintaining support for all it's core components.

Documentation

Prerequisites

• NodeJS >= 10.6
• NPM >= 6.10.0

The code was written on a Mac, so assuming all should work smoothly on Linux-based computers. However, there is no reason not to run this library on Windows-based machines. If you find an OS-related problem, please open an issue and it will be resolved.

Installation

npm install --save rosetta-node-sdk

Tests

This project is thoroughly tested using > 300 automated tests. Run npm run test to see how they all work out.

Usage

All Core components are accessible as follows:

const RosettaSDK = require('rosetta-node-sdk');
const {
  Asserter,
  Server,
  Reconciler,
  Client,
  Fetcher,
  Syncer,
  Parser,
  SyncerEvents,
  Errors,

  Utils,
  InternalModels,

  logger,

  version, // '1.4.1'
} = RosettaSDK;

Components

• Asserter - Syntactical and semantical type validator. This Asserter can be used to validate Requests/Responses. Constructors exist that ease the creation of an asserter. For example, NewClientWithResponses can be used in order to create a server validator by only passing the network responses.
• Server - The Server Component eases the development of a custom server implementation. Examples on how to build such a server are located in examples.
• Reconciler - Use the Reconciler in order to validate that the balances computed by parsing the blocks are the equal to the balances computed by a node.
• Client - Client request library rosetta-node-sdk-client
• Fetcher - Convenience Wrapper Class for Client
• Syncer - Makes use of Fetcher class in order to download blocks in logical order.
• Parser - Parses and groups BalanceOperations of a block.
• SyncerEvents - Syncer Events. Mainly BLOCK_ADDED, BLOCK_REMOVED, SYNC_CANCELLED
• Errors - Error Classes for the different components: AsserterError, FetcherError, InputError, ParserError, InternalError, ReconcilerError, SyncerError.
• Utils - Utility functions, commonly used internally by the core components.
• InternalModels - Models, that are commonly used internally.
• logger - Default Logger Singleton Class.
• version - Specifies the version of this SDK. This semver is equal to the Rosetta API SDK for convencience.

ToDos

• Setup CI (npm run test will execute 358 tests)
• Support keys (cryptographic API)
• Test Reconciler in live environment