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Grid provides reference implementations of supply-chain-centric items – data types, data models, smart contracts, and more – that are anchored on existing open standards and industry best practices.

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Hyperledger Grid

Hyperledger Grid is a platform for building supply chain solutions that include distributed ledger components. It provides a growing set of tools that accelerate development for supply chain smart contracts and client interfaces.

This project is not an implementation of a distributed ledger or a client application. Instead, Hyperledger Grid provides supply-chain-focused libraries, data models, and software development kits (SDKs) as modular, reusable components.

The Hyperledger Grid project includes several repositories:

  • This repository contains core components such as supply-chain-centric data types and smart permissioning code.

  • The grid-contrib repository contains example domain models and reference implementations for smart contracts (also called "transaction families").

  • The grid-rfcs repository contains RFCs (requests for comments) for proposed and approved changes to Hyperledger Grid.

  • The grid-docs repository contains the source files for the Grid documentation and website hosted at grid.hyperledger.com.

Project Status

Hyperledger Grid is currently in the incubation stage of the Hyperledger product lifecycle. The Hyperledger Grid proposal was accepted in December, 2018.

How to Participate

We welcome contributors, both organizations and individuals, to help shape project direction, contribute ideas, provide use cases, and work on specific tools and examples. Please join the discussion.

Building Grid

Grid is built using latest stable rust, which you should install via rustup.

To install the remaining dependencies using a package manager, run one of the following commands.

Homebrew (OS X):

brew install openssl zeromq pkg-config protobuf libpq

APT (Ubuntu):

apt install \
    build-essential \
    pkg-config \
    libssl-dev \
    protobuf-compiler \
    libsqlite3-dev \
    libpq-dev \
    libsasl2-dev \
    libxml2-dev \
    libzmq3-dev \
    openssl

Once you have the prerequisites installed, run cargo build from the root directory. This command builds all of the Grid components, including gridd (the grid daemon), the CLI, and all of the smart contracts in the contracts directory.

To build individual components, run cargo build in the component directories. For example, to build only the grid-cli, navigate to cli, then run cargo build.

Building with Docker

To build Grid using Docker, run docker-compose build from the root directory. This command builds Docker images for all of the Grid components, including gridd (the grid daemon), the CLI, and all of the smart contracts in the contracts directory.

To build individual components using Docker, run docker-compose build <component> from the root directory. For example, to build only the grid-cli, run docker-compose build grid-cli.

To use Docker to build Grid with experimental features enabled, set an environment variable in your shell before running the build commands. For example: export 'CARGO_ARGS= --features experimental'. To go back to building with default features, unset the environment variable: unset CARGO_ARGS

More Information

License

Hyperledger Grid software is licensed under the Apache License Version 2.0 software license.

The Hyperledger Grid documentation in the grid-docs repository is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). You may obtain a copy of the license at http://creativecommons.org/licenses/by/4.0/.

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Grid provides reference implementations of supply-chain-centric items – data types, data models, smart contracts, and more – that are anchored on existing open standards and industry best practices.

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