How to use a service only to process and not store in the FeathersJS

Question

How do I create a service that does only one processing, without registering in the database. An example: sending any data it does a processing using a hook and returns the result.

Here it works more the return is the answer of the data in the database, I do not care to store

app.use('/process', createService(options)); 

I tried something like this but got an error. Sorry, I am new to it.

app.use('/process', function(req, res) {

});

Answer 1

This is explained in detail in the Basics guide of the FeathersJS documentation, specifically the services section. The API documentation can be found here. A service is any object or class that implements one or more of the following methods which can do pretty much anything:

class MyService {
  async find(params) {
    return [];
  }
  async get(id, params) {}
  async create(data, params) {}
  async update(id, data, params) {}
  async patch(id, data, params) {}
  async remove(id, params) {}
  setup(app, path) {}
}

app.use('/my-service', new MyService());

A custom service can be generated with the CLI via feathers generate service and choosing the "A custom service" option. It can then be edited in src/services/<name>/<name>.class.js.