Servercode: how to define a function and use it in multiple Services

Server Code
1

We have two types of module in Servercode Javascript:
the service modules, which are added using this line:

Backendless.ServerCode.addService(className);

and the Model:

module.exports = Backendless.ServerCode.addType(className);

I’m willing to write a function and use it accross ServerCode services, this function will interact with the database such as

Backendless.Data.of(“table_name”).findById(…)

is this possible? Because I couldn’t figure it out.

Thanks in advance,
Hassan

2

Hello @Hassan_Kanso

You can create a separate js file and require it in other js files, for ex:

//foo.js

exports.foobar = function (){ 
 return Backendless.Data.of(“table_name”).findById(…)
 }

//service.js
const { foobar } = require('./foo')

class ClassName {
  async myMethod(){
     const r = await foobar() 

     ... 
   }
}

Regards, Vlad

3

just to add some info, the solution provided by @vladimir-upirov will not work if you define the function inside of persistenceItem’s file, in models folder. (atleast in my experience)

4

Could you please attach the code of these two files?
Do not share the entire content just show how you export the function and import