How to link mongo with node using docker compose

Question

I'm trying link my node server with my db in Mongo, but doesn't work...

This is my Docker-Compose.yml:

version: '3.9'

services:
      human:
          build:
            context: ./human-app
          container_name: human
          ports:
            - "3001:3001"
      mongodb:
          image: mongo
          container_name: mongodb
          env_file:
            - ./human-app/srcs/.env
          environment:
            - MONGO_INITDB_ROOT_USERNAME=Pepe
            - MONGO_INITDB_ROOT_PASSWORD=PepePass
            - MONGO_INITDB_DATABASE=Pool
          ports:
            - "27017:27017"
          volumes:
            - ./volumes_mongo:/data/db

And when i run the command:

docker-compose up -d

Everything work correctly but separate, i check the status with the command "docker ps -a" and the result is this:

CONTAINER ID   IMAGE                       COMMAND                  CREATED         STATUS         PORTS                      NAMES
9335c5cd4940   mongo                       "docker-entrypoint.s…"   4 seconds ago   Up 3 seconds   0.0.0.0:27017->27017/tcp   mongodb
2a28635d2caa   human-selection-app_human   "node server"            4 seconds ago   Up 3 seconds   0.0.0.0:3001->3001/tcp     human

If i enter in my container of mongo, and follow the next steps, thats happen:

1- docker exec -it mongodb bash 2- mongo 3- show dbs "result no dbs"

So, i can't link nothing with my node server, probably i need create a network for the 2 services? can anyone help me? thanks.

Extra, this is how i connect from my server to MongoDB:

    async _connectDB() {

        //! We create the connection to the database

        const dbUser = process.env.DBUSER;;
        const dbPassword = process.env.DBPASSWORD;
        const dbName = process.env.DBNAME;
        const dbUriLocal = `mongodb://${dbUser}:${dbPassword}@127.0.0.1:27017/${dbName}`;

        
        mongoose.connect(dbUriLocal, { useNewUrlParser: true, useUnifiedTopology: true })
            .then(() => console.log(clc.cyan('Debug: Database connected successfully')))
            .catch(e => console.log(e));
    }