fets/esm/cli/index.js

TypeScript HTTP Framework focusing on e2e type-safety, easy setup, performance & great developer experience

import { promises as fsPromises } from 'node:fs';
import { isAbsolute, join } from 'node:path';
import { parseArgs } from 'node:util';
import { load as yamlLoad } from 'js-yaml';
import { fetch } from '@whatwg-node/fetch';
const options = {
    'openapi-url': {
        type: 'string',
    },
    'output-file': {
        type: 'string',
    },
};
export async function cli(argv = process.argv.slice(2)) {
    const args = [...argv];
    while (args[0]?.startsWith('/') || args[0] === '--') {
        args.shift();
    }
    const { values: { 'openapi-url': openapiUrl, 'output-file': outputFile = 'oas.ts' }, } = parseArgs({ args, options, allowPositionals: true });
    if (!openapiUrl) {
        throw new Error('You have to run with --openapi-url <url>');
    }
    if (!outputFile.endsWith('.ts')) {
        throw new Error('output-file must be ts file like `--output-file oas.ts`');
    }
    console.log(`Fetching ${openapiUrl}`);
    let rawData;
    if (openapiUrl.startsWith('http')) {
        const res = await fetch(openapiUrl);
        rawData = await res.text();
        if (!res.ok) {
            throw new Error(`Failed to fetch ${openapiUrl}: ${rawData}`);
        }
    }
    else {
        rawData = await fsPromises.readFile(openapiUrl, 'utf-8');
    }
    const jsonData = yamlLoad(rawData);
    const oas = JSON.stringify(jsonData, null, 2);
    const content = `// This file is generated by fets-cli
// Do not edit this file directly
// @eslint-ignore
// prettier-ignore
export default ${oas} as const
`;
    const absoluteOutputFile = isAbsolute(outputFile) ? outputFile : join(process.cwd(), outputFile);
    console.log(`Writing to ${absoluteOutputFile}`);
    await fsPromises.writeFile(outputFile, content);
}