Function customParser

test/custom-parser.0.test.js:83–87

(req, payload, done)

  })

  function customParser (req, payload, done) {
    jsonParser(payload, function (err, body) {
      done(err, body)
    })
  }

  fastify.addContentTypeParser('application/jsoff', customParser)
  fastify.addContentTypeParser('application/ffosj', customParser)