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README.md

Concerto

Build Status Coverage Status GitHub license downloads npm version Join the Accord Project Slack

Introduction

Concerto is a lightweight 100% JavaScript schema language and runtime. It works in both a Node.js process and in your browser. The browserified version of Concerto is ±280KB. We are working on making it even smaller.

This is why you should care: https://www.accordproject.org/news/strongly-typed-data-for-javascript-and-beyond/

Things you can do using Concerto:

  • Define an object-oriented model using a domain-specific language that is much easier to read and write than JSON/XML Schema, XMI or equivalents. The metamodel gives you "just enough" expressivity to capture real-world business models, while remaining easy to map to most runtime environments.
  • Optionally edit your models using a powerful VS Code add-on with syntax highlighting and validation
  • Create runtime instances of your model
  • Serialize your instances to JSON
  • Deserialize (and optionally validate) instances from JSON
  • Instances are JS objects so they are easy to pass around your application
  • Introspect the model using a powerful set of APIs
  • Convert the model to other formats: JSON Schema, XML Schema, Java, Go, Typescript, Loopback, PlantUML using concerto-tools.
  • Import models from URLs
  • Publish your reusable models to any website, including the Accord Project Open Source model repository, hosted at: https://models.accordproject.org

Structure of the Code Repository

Top level repository (concerto), with sub packages. Each sub-package is published as an independent npm module using lerna:

  • concerto-cli : command-line interface for Concerto
  • concerto-core : core library for model management/parsing/validation/serialization
  • concerto-tools : model converters and tools for Concerto model files

Installation

To install the command-line interface:

npm install -g @accordproject/concerto-cli

You may also set a custom folder to keep the log files by setting the following environment variable:

export CONCERTO_LOG_FOLDER_PATH="/tmp"

Accord Project Logo

Accord Project is an open source, non-profit, initiative working to transform contract management and contract automation by digitizing contracts. Accord Project operates under the umbrella of the Linux Foundation. The technical charter for the Accord Project can be found here.

Learn More About Accord Project

Overview

Documentation

Ecosystem

Core libraries:

Projects Package name Version Description
Cicero cicero-core npm version Templates Core
cicero-cli npm version Cicero CLI
cicero-engine npm version Node.js VM based implementation of Accord Project Template Specification execution
cicero-server npm version Wraps the Cicero Engine and exposes it as a RESTful service
cicero-test npm version Testing support for Cicero based on cucumber
cicero-tools npm version Cicero Tools
generator-cicero-template npm version Code generator for a Cicero Template
Concerto concerto-core npm version Core Implementation for the Concerto Modeling Language
concerto-tools npm version Tools for the Concerto Modeling Language
concerto-cli npm version command-line interface for Concerto
Ergo ergo-cli npm version Ergo CLI
ergo-compiler npm version Ergo compiler
ergo-test npm version Ergo test
ergo-engine npm version Ergo engine
Markdown markdown-common npm version A framework for transforming markdown
markdown-slate npm version Transform markdown to/from CommonMark DOM
markdown-cli npm version CLI for markdown transformations.
markdown-cicero npm version Markdown extensions for contracts, clauses, variables etc.
markdown-html npm version Transform CiceroDOM to HTML

UI Components:

Projects Package name Version Description
Markdown Editor markdown-editor npm version WYSIWYG rich text web editor for markdown based on Slate.js
Cicero UI cicero-ui npm version React UI components for Cicero
Concerto UI concerto-ui npm version Dynamic web forms generated from Concerto models

Template Editors:

Projects Cicero ver. Description
Template Studio v1 0.13.4 Web UI for creating, editing and testing Accord Project templates
Template Studio v2 0.13.4 Web UI for creating, editing and testing Accord Project templates
VSCode Extension 0.13.4 VS Code extension for editing Cicero templates and Ergo logic

Public templates and models:

Projects Description
Models Accord Project Model Library
Template Library Accord Project Template Library

Documentation:

Project Repo
Documentation techdocs

Contributing

The Accord Project technology is being developed as open source. All the software packages are being actively maintained on GitHub and we encourage organizations and individuals to contribute requirements, documentation, issues, new templates, and code.

Find out what’s coming on our blog.

Join the Accord Project Technology Working Group Slack channel to get involved!

For code contributions, read our CONTRIBUTING guide and information for DEVELOPERS.

README Badge

Using Accord Project? Add a README badge to let everyone know: accord project

[![accord project](https://img.shields.io/badge/powered%20by-accord%20project-19C6C8.svg)](https://www.accordproject.org/)

License

Accord Project source code files are made available under the Apache License, Version 2.0. Accord Project documentation files are made available under the Creative Commons Attribution 4.0 International License (CC-BY-4.0).

Copyright 2018-2019 Clause, Inc. All trademarks are the property of their respective owners. See LF Projects Trademark Policy.