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fastify-plugin

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fastify-plugin

Plugin helper for Fastify


Version published
Weekly downloads
2M
increased by3.06%
Maintainers
10
Weekly downloads
 
Created

What is fastify-plugin?

The fastify-plugin npm package is designed to facilitate the creation of plugins for the Fastify web framework. It ensures that plugins adhere to specific conventions and are compatible with the Fastify ecosystem. This package helps in encapsulating functionality, adding hooks, decorators, and more, in a way that's easily reusable across different Fastify projects.

What are fastify-plugin's main functionalities?

Plugin Creation

This feature allows developers to create a Fastify plugin. The code sample demonstrates how to use fastify-plugin to decorate the Fastify instance with a new function called 'utility'.

const fp = require('fastify-plugin');

async function myPlugin (fastify, options) {
  fastify.decorate('utility', () => 'something useful');
}

module.exports = fp(myPlugin);

Plugin Options

This feature enables passing options to the plugin, including specifying Fastify version compatibility. The code sample shows how to pass data through options and use it within the plugin.

const fp = require('fastify-plugin');

async function myPlugin (fastify, options) {
  fastify.decorate('usefulData', options.data);
}

module.exports = fp(myPlugin, { name: 'myPlugin', fastify: '3.x' });

Encapsulation

This feature ensures that the plugin does not encapsulate its context, allowing the decorators, hooks, and changes made by the plugin to be available in the parent scope. The code sample demonstrates registering another plugin within a fastify-plugin, ensuring dependencies are managed.

const fp = require('fastify-plugin');

async function myPlugin (fastify, options) {
  fastify.register(require('some-other-plugin'), options);
}

module.exports = fp(myPlugin, { dependencies: ['some-other-plugin'] });

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Package last updated on 21 Sep 2024

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