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README.md

fastify-babel NPM Version

Fastify Babel plugin for development servers

Never load this plugin on production servers

The purpose of this module is for running a test HTTP server directly from sources. Babel transformations are not async and all additional requests are blocked while transformation is in process.

You should always use a build step to install pre-transformed files to production servers.

Install fastify-babel

This module requires node.js 10 or above. It is should normally be used with fastify-static >= 0.12.0. This module requires the local filename to be in payload.filename.

npm i --save-dev fastify-babel @babel/core

Usage

'use strict';

const path = require('path');
const fastify = require('fastify')();
const fastifyStatic = require('fastify-static');
const fastifyBabel = require('fastify-babel');

fastify
	.register(fastifyStatic, {
		root: path.join(__dirname, 'html/myapp'),
		prefix: '/myapp',
	})
	.register(fastifyStatic, {
		root: path.join(__dirname, 'node_modules'),
		prefix: '/node_modules',
		decorateReply: false,
	})
	.register(fastifyBabel, {
		babelrc: {
			plugins: ['bare-import-rewrite'],
		},
	})
	.listen(3000, '127.0.0.1', err => {
		if (err) {
			throw err;
		}
		console.log(`server listening at http://127.0.0.1:${fastify.server.address().port}/`);
	});

In addition to fastify-babel this example requires fastify-static and babel-plugin-bare-import-rewrite.

Options

babelrc

An object provided directly to babel for each request that is processed. Default is empty.

babelTypes

A RegExp object used to match the Content-Type header. Only replies with matching header will be processed by babel. Default /(java|ecma)script/.

maskError

Setting this to false will allow the full error message to be displayed. By default errors are masked to prevent disclosure of server details.

cache

A Map-like object for caching transform results. This object must have support for both get and set methods.

cacheHashSalt

A string used to salt the hash of source content.

fastify-babel for enterprise

Available as part of the Tidelift Subscription.

The maintainers of fastify-babel and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. Learn more.

About

Fastify plugin for processing Javascript with babel.

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