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Building

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Build command

yarn build

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Build process

1. Clean previous builds
   rm -rf dist && rm -rf src/types/generated
   
   Eliminates the output directory and generated types for a fresh build.
2. Generate TypeScript types from ABIs
   yarn typechain
   
   Leverages TypeChain to produce TypeScript types from contract ABIs located in the abi/ directory.
3. Compile TypeScript
   tsc
   
   Transforms all TypeScript source files into JavaScript within the dist/ directory.
4. Copy schema files
   cp ./src/types/config.schema.json dist/src/types/config.schema.json
   
   Transfers the JSON schema file necessary for runtime configuration validation.

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TypeChain configuration

typechain --target ethers-v5 --out-dir src/types/generated/ "abi/*.json"

• Target: ethers-v5 (generates types compatible with ethers.js v5)
• Output: src/types/generated/
• Input: All JSON files in the abi/ directory

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Output directory

dist/
├── src/
│   ├── commands/
│   ├── domain/
│   ├── services/
│   ├── types/
│   │   ├── generated/      # TypeChain generated types
│   │   └── config.schema.json
│   ├── utils/
│   └── index.js
└── ...

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Build artifacts

• Compiled JavaScript: All .ts files transformed to .js in dist/
• Type declarations: .d.ts files for TypeScript consumers
• Contract types: Generated TypeScript interfaces for smart contracts
• JSON schemas: Configuration validation schemas

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Entry point

{
  "main": "dist/src/index.js"
}

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Prepare hook

yarn prepare

• husky install - Configures git hooks
• yarn typechain - Produces contract types
• yarn configschema - Generates configuration schema

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Building for production

1. Execute the complete build: yarn build
2. The dist/ directory contains the deployable application
3. Verify all dependencies in package.json are installed in production

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Docker builds

docker build -t watch-tower .