microchain2 v2.0.2
microchain2
A program to implement fast and simple blockchain storage
Installing microchain2
Installing microchain2 requires a supported version of Node and Rust.
You can install the project with npm. In the project directory, run:
$ npm install
This fully installs the project, including installing any dependencies and running the build.
Building microchain2
If you have already installed the project and only want to run the build, run:
$ npm run build
This command uses the cargo-cp-artifact utility to run the Rust build and copy the built library into ./index.node
.
Exploring microchain2
After building microchain2, you can explore its exports at the Node REPL:
$ npm install
$ node
> const Microchain = require('.');
> let chain1 = new Microchain("chain1");
Available Scripts
In the project directory, you can run:
npm install
Installs the project, including running npm run build
.
npm build
Builds the Node addon (index.node
) from source.
Additional cargo build
arguments may be passed to npm build
and npm build-*
commands. For example, to enable a cargo feature:
npm run build -- --feature=beetle
npm build-debug
Alias for npm build
.
npm build-release
Same as npm build
but, builds the module with the release
profile. Release builds will compile slower, but run faster.
And tsc
to compile the typescript wrapper.
npm test
Runs the unit tests by calling cargo test
and jest
.
Project Layout
The directory structure of this project is:
microchain2/
├── Cargo.toml
├── README.md
├── index.node
├── index.ts
├── package.json
├── src/
| └── lib.rs
└── target/
Cargo.toml
The Cargo manifest file, which informs the cargo
command.
README.md
This file.
index.node
The Node addon—i.e., a binary Node module—generated by building the project. This is the main module for this package, as dictated by the "main"
key in package.json
.
Under the hood, a Node addon is a dynamically-linked shared object. The "build"
script produces this file by copying it from within the target/
directory, which is where the Rust build produces the shared object.
package.json
The npm manifest file, which informs the npm
command.
index.ts
The typescript wrapper to make easy access the library in ts
and js
src/
The directory tree containing the Rust source code for the project.
src/lib.rs
The Rust library's main module.
src/Chain.rs
The Rust Chain module.
target/
Binary artifacts generated by the Rust build.
Learn More
To learn more about Neon, see the Neon documentation.
To learn more about Rust, see the Rust documentation.
To learn more about Node, see the Node documentation.