Mailchimp, Env Variables and Netlify Functions

Hi everyone,

i’m working on a website with nuxt in Server Side Rendering, deployed on Netlify.
I’m adding a new feature for subscribing users to a Mailchimp list, and in order to make everything custom, i decided to use their APIs.

I need to do a POST request to their endpoint, using the secret keys. What I did kinda works, but i can’t understand how to deal with the response i receive from the function, in order to manipulate it then in the component; here’s my code:

In the component:

let subscriber = await this.$axios.$post(`https://deploy-preview-1--fasalwebsite.netlify.app/.netlify/functions/subscribe`, 
    {
        "email_address": this.email,
        "status": "subscribed",
        "merge_fields": {
            "FNAME": this.name,
            "LNAME": this.surname
        },
        "tags":[
            this.type == 'private' ? "privato" : "azienda"
        ]
    },
    {
        headers: {"Accept": "application/json", "Content-Type": "application/json"},
    }
)

In subscribe.js (the serverless function):

const axios = require('axios')
exports.handler = async (event) => { 
  try {
    const res = await axios({
        method: 'post',
        url: `https://us17.api.mailchimp.com/3.0/lists/52e8c44f16/members`, //change region (us19) based on last values of ListId.
        data: event.body,
        auth: {
          username: 'apikey', // any value will work 
          password: process.env.KEY_CHIMP
        }
      }
    )
    console.log(res.data)
    return {
      statusCode: 200,
      body: res.data
    }
  }
  catch (err) { 
    return {
      statusCode: 400,
      body: err.message
    }
  }
}

process.env.KEY_CHIMP is registered in Netlify Env Variables of course.
New users are successfully added, but i don’t know how to handle the response I get from the function.
Anybody can help me understand?

hi there, there is a mailchimp example in here, maybe that is helpful?