Execute function after return

Question

I'm using nodejs with expressjs for my api.

I want to call a function after res.json() is called.

for example the api fetches data to the client but i want to log that action but no need to make client wait for request response till the api saves log

module.exports = {
  getAll:async function(req,res){
    ////fetch data from db
    res.json({success:true,data:data});
    module.exports.logthis();
    return;
  },
  logthis: async function ()
  {
    //save log
  }
}

is this true that logthis will not be interupted after return; is called ? also is there a better pattern to do this, like a event queue listener so that i threw that request in a pool and it's executed whenever it's possible ?

Answer 1

Sending a json response to the client or using return statement will not stop the script from executing logthis function only if you put return statement before it.

module.exports = {

    getAll:async function(req,res){

        //fetch data from db

        res.json({success:true,data:data});

        this.logthis(data);

        return;
    },

    logthis: function (data) {
        // log data to file here
    }

}

Remember that async function works in conjunction with await statement, if you don't have asynchronous functions inside getAll there is no need to use async keyword