@nomyx/canton-codegen

Generate TypeScript interfaces and template ID constants from Daml source files.

Installation

npm install @nomyx/canton-codegen

CLI Usage

canton-codegen --input ./daml --output ./src/generated.ts

This scans all .daml files under the input directory and writes a single TypeScript module containing typed interfaces and template ID constants for every template found.

Programmatic Usage

import { generate, parseDamlSource, emit } from '@nomyx/canton-codegen';

// One-shot: read Daml files and write the output
await generate({
  input: './daml',
  output: './src/generated.ts',
});

// Step-by-step: parse then emit
const templates = parseDamlSource('daml/Main.daml');
const tsSource = emit(templates);

Output Example

For a Daml template Main:Asset with fields owner: Party and quantity: Int, the codegen produces:

export interface Asset {
  owner: string;
  quantity: string;
}

export const Asset = {
  templateId: 'Main:Asset' as const,
};

License

Apache-2.0 -- see LICENSE for details.