json-schemas.mjs

import fs from "node:fs";
import path from "node:path";
import { fileURLToPath } from "node:url";

import { globSync } from "glob";
import { compileFromFile } from 'json-schema-to-typescript';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const SRC_DIR = path.join(__dirname, "schemas");
const OUT_DIR = path.join(__dirname, "src");

async function generateTypings() {
  const schemas = globSync(`${SRC_DIR}/*.json`);
  for (const schema of schemas) {
    const outPath = path.join(
      OUT_DIR,
      `${path.basename(schema, ".json")}.d.ts`,
    );
    const ts = await compileFromFile(schema, {
      bannerComment:
        "/* This file was automatically generated by `npm run generate:schemas`. Do not edit by hand. */",
    });
    fs.writeFileSync(outPath, ts, "utf-8");
  }
}

await generateTypings();