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Fix an issue on the cache plugin that caused double proxy calls.

If redis cache is used, then keys pattern are used for retrieval. This will avoid fetching unrequired keys from the remote redis instance.

Fixes double response stream reading issue.

https://github.com/jkyberneees/fastify-gateway#gateway-level-caching

• Making middlewares, pathRewrite and hooks optional config properties.
• Allowing to overwrite default routes pathRegex value.

Allowing request url overwrite before proxy:

  routes: [{
    pathRegex: '',
    prefix: '/user/:id/details',
    methods: ['GET'],
    prefixRewrite: '',
    target: 'http://localhost:3000',
    middlewares: [],
    hooks: {
      async onRequest (request, reply) {
        request.req.url = `/userdetails/${request.params.id}`
      }
    }
  }]

Fix: https://github.com/jkyberneees/fastify-gateway/issues/21

Added:

• Possibility to optionally define certain HTTP methods to proxy only.

Thanks @Betank for your contribution here!

• Minor documentation fix.
• Adding benchmarks results.

Required update due a breaking change in fastify-reply-from v0.6.x