SSL only if certificate files exist

[AmosSzust]

Hi
I did the following using express, in order to switch between http (running locally) and https/ssl (running on VPS).

if (fs.existsSync('...privkey.pem')) {
    const options = {
        key: fs.readFileSync('..privkey.pem'),
        cert: fs.readFileSync('...fullchain.pem'),
    };
    server = https.createServer(options, app).listen(process.env.PORT, () => {
        console.log(`${new Date().toISOString()}: server is running on https at port ${process.env.PORT}`);
    });
} else {
    server = app.listen(3000, () => {
        console.log(`${new Date().toISOString()}: server is running on http at port 3000`);
    });
}

The above works great on both my computer and when uploading it to the server, without the need to change anything, How can I do it using fastify? I did the following:

const fastifyInstance: FastifyInstance = Fastify({
  logger: true,
  ajv: {
    customOptions: {
      coerceTypes: false,
    },
  },
  // https: {
  //   key: fs.readFileSync("...privkey.pem"),
  //   cert: fs.readFileSync("...fullchain.pem"),
  // },
});

but I need the https section to conditionally be added depending on the existence of the pem files. I'm using typescript so I tried to add it only if the file exists and then creating the instance but something with the types got messy. Please advice.
Thanks

[jsumners]

Conditionally build your options object?

[AmosSzust]

This is why I wrote what I wrote at the end :)
I tried that but what is the type of that options object? I tried different types, including any (which I don't like) but every time I get a different error, either when adding the https section or when trying to assign it to const fastifyInstance: FastifyInstance = Fastify(fastifyOptions);

[AmosSzust]

So for now I did the following

let fastifyInstance: FastifyInstance;
const commonConfig = {
  logger: true,
  ajv: {
    customOptions: {
      coerceTypes: false,
    },
  },
};
if (
  fs.existsSync(".../privkey.pem") &&
  fs.existsSync(".../fullchain.pem")
) {
  fastifyInstance = Fastify({
    ...commonConfig,
    https: {
      key: fs.readFileSync(".../privkey.pem"),
      cert: fs.readFileSync(".../fullchain.pem"),
    },
  });
} else {
  fastifyInstance = Fastify(commonConfig);
}

And I wonder if this is how it should be done or whether there's a better/cleaner way.
Thanks

[Eomm]

Is this a coding chellange?

const isHttps = fs.existsSync(".../privkey.pem") && fs.existsSync(".../fullchain.pem")

const fastifyInstance  = Fastify({
  logger: true,
  ajv: {
    customOptions: {
      coerceTypes: false,
    },
  },
  ...(isHttps ? {
    https: {
      key: fs.readFileSync(".../privkey.pem"),
      cert: fs.readFileSync(".../fullchain.pem"),
    },
  } : null)
});

[jsumners]

const baseConfig = {
  logger: true
}
const listenConfig = {
  host: '127.0.0.1',
  port: 8080
}

if (serveHttps === true) {
  baseConfig.https = { /* stuff */}
  listenConfig.port = 8443
}

const server = fastify(baseConfig)
server.listen(listenConfig)