State View

A web application for inspecting JAM state data. Upload serialized state dumps in JSON format to view and analyze their contents.

What it does

State View allows you to:

• Upload JSON files containing blockchain state data
• View state data in a structured, readable format
• Switch between different views (pre-state, post-state, diff) for test vectors
• Edit JSON content manually with syntax highlighting
• Inspect state merkleization and structure

Supported formats

• STF (State Transition Function) test vectors
• STF genesis states
• JIP-4 Chain Spec files
• Typeberry configuration files

Development

Requirements

• Node.js (latest LTS version)
• npm

Setup

npm install

Running locally

npm run dev

The application runs at http://localhost:5173

Testing

npm run test          # Run tests once
npm run test:watch    # Run tests in watch mode
npm run test:coverage # Run tests with coverage report

Building

npm run build

Code quality

npm run lint

Project structure

src/
├── components/      # React components
├── utils/           # Utility functions for state parsing
├── types/           # TypeScript type definitions
├── constants/       # Application constants
└── assets/          # Static assets

License

Mozilla Public License, v. 2.0