Nuxt blocks Fastify routes

It appears that Nuxt nuxt.render method blocks Fastify routes.

Reproduction

Use npx create-nuxt-app <project-name> with the following configuration

create-nuxt-app v2.15.0
✨  Generating Nuxt.js project in Test
? Project name Test
? Project description My awe-inspiring Nuxt.js project
? Author name 
? Choose programming language JavaScript
? Choose the package manager Yarn
? Choose UI framework Vuetify.js
? Choose custom server framework Fastify
? Choose Nuxt.js modules Axios, Progressive Web App (PWA) Support, DotEnv
? Choose linting tools ESLint, Prettier
? Choose test framework AVA
? Choose rendering mode Universal (SSR)
? Choose development tools jsconfig.json (Recommended for VS Code)
yarn run v1.22.4

Then add a simple fastify route to /server/index.js

fastify.get('/test', (request, reply) => {
  reply.send({ hello: 'world' })
})

Result

Fastify routes returns 404

What i have tried

• Disabling Nuxt render (fastify.use(nuxt.render)) does allow Fastify routes to be exposed

I guess adding a whitelist for Fastify routes and handling that with Nuxt.render would work, but that would be inconvenient.

Thank you

[kdeenanauth]

Yeah I noticed the same thing. I don’t think nuxt’s render method is calling next.

For anyone else, I followed the whitelist approach as noted:

fastify.use(
    (_req, res, next) => {
      if (_req.url.startsWith("/api") > 0) {
        next()
      } else {
        nuxt.render(_req, res, next)
      }
    }
  )

[pi0]

@paulogr Unfortunately it is not universally possible because this means we need to load/init the entire SSR bundle even for client-side calls to functions. But the good news is that functions supporting a similar feature called services so we can have axios service.