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@gasket/plugin-fastify

Adds Fastify to your application.

Installation​

New apps​

gasket create <app-name> --plugins @gasket/plugin-fastify

Existing apps​

npm i @gasket/plugin-fastify

Modify plugins section of your gasket.config.js:

module.exports = {
  plugins: {
    add: [
+      '@gasket/plugin-fastify'
    ]
  }
}

Configuration​

All the configurations for the plugin are added under fastify in the config:

  • compression: true by default. Can be set to false if applying compression differently.
  • excludedRoutesRegex: Routes to be excluded based on a regex
  • trustProxy: Enable trust proxy option, see Fastify documentation for possible values

Example configuration​

module.exports = {
  plugins: {
    add: ['@gasket/fastify']
  },
  fastify: {
    compression: false,
    excludedRoutesRegex: /^(?!\/_next\/)/,
    trustProxy: true
  }
}

Middleware paths​

The gasket.config.js can contain a middleware property, which is an array of objects that map plugins to route or path patterns, allowing apps to tune which middleware are triggered for which requests.

  middleware: [
    {
      plugin:'gasket-plugin-example', // Name of the Gasket plugin
      paths: ['/api']
    },
    {
      plugin:'@some/gasket-plugin-example',
      paths: [/\/default/]
    },
    {
      plugin: '@another/gasket-plugin-example',
      paths: ['/proxy', /\/home/]
    }
  ]

Lifecycles​

middleware​

Executed when the fastify server has been created, it will apply all returned functions as middleware.

module.exports = {
  hooks: {
    /**
    * Add Fastify middleware
    *
    * @param {Gasket} gasket The Gasket API
    * @param {Fastify} app - Fastify app instance
    * @returns {function|function[]} middleware(s)
    */
    middleware: function (gasket, app) {
      return require('x-xss-protection')();
    }
  }
}

You may also return an Array to inject more than one middleware.

fastify​

Executed after the middleware event for when you need full control over the fastify instance.

module.exports = {
  hooks: {
    /**
    * Update Fastify app instance
    *
    * @param {Gasket} gasket The Gasket API
    * @param {Fastify} fastify Fastify app instance
    * @returns {function|function[]} middleware(s)
    */
    fastify: async function (gasket, fastify) {
    }
  }
}

errorMiddleware​

Executed after the fastify event. All middleware functions returned from this hook will be applied to Fastify.

module.exports = {
  hooks: {
    /**
    * Add Fastify error middlewares
    *
    * @param {Gasket} gasket The Gasket API
    * @returns {function|function[]} error middleware(s)
    */
    errorMiddleware: function (gasket) {
    }
  }
}

How it works​

This plugins hooks the createServers lifecycles from @gasket/plugin-https.

License​

MIT