nginx configuration for ruby on rails application with api

I have hosted my ROR application on digital ocean using ubuntu droplet, my application is using nginx, passenger. Application web pages are working as expected but there are few api’s that are created in the same application which are giving 403 forbidden when pining the api from react mobile app.

“Completed 403 Forbidden in 1ms (Views: 0.2ms | ActiveRecord: 0.0ms | Allocations: 309)”

I am guessing this is something to do with my nginx configuration can somebody please help.

nginx conf file

server {
  listen 443 ssl;

  server_name net2fit.com;

  ssl_certificate /etc/letsencrypt/live/net2fit.com/fullchain.pem;
  ssl_certificate_key  /etc/letsencrypt/live/net2fit.com/privkey.pem;

  root /home/deploy/net2fit/public;

  passenger_enabled on;
  passenger_ruby /home/deploy/.rbenv/versions/2.6.6/bin/ruby;
  passenger_app_env production;

  access_log /var/log/nginx/app.access.log;
  error_log /var/log/nginx/app.error.log;

  location /cable {
    passenger_app_group_name net2fit_websocket;
    passenger_force_max_concurrent_requests_per_process 0;
  }

  location /api/v1/ {
    passenger_enabled on;
    rails_env production;
    root /home/deploy/net2fit/public;
    error_page 500 502 503 504 /50x.html;
  }

  #Allow uploads up to 100MB in size
  client_max_body_size 100m;

  location ~ ^/(assets|packs) {
    expires max;
    gzip_static on;
  }

        # this rewrites all the requests to the maintenance.html
        # page if it exists in the doc root. This is for capistrano's
        # disable web task
        if (-f $document_root/system/maintenance.html)
        {
          rewrite  ^(.*)$  /system/maintenance.html last;
          break;
        }

}