knexfile.js

// Update with your config settings.
const localPg = {
  host: process.env.DB_HOST,
  database: process.env.DB_NAME,
  user: process.env.DB_USER,
  password: process.env.DB_PASS
};

const dbConnection = process.env.DATABASE_URL || localPg;

module.exports = {
  development: {
    client: "sqlite3",
    useNullAsDefault: true,
    connection: {
      filename: "./data/planets.db3"
    },
    pool: {
      afterCreate: (conn, done) => {
        conn.run("PRAGMA foreign_keys = ON", done);
      }
    },
    migrations: {
      directory: "./data/migrations"
    },
    seeds: {
      directory: "./data/seeds"
    }
  },

  production: {
    client: "pg",
    connection: dbConnection,
    migrations: {
      directory: __dirname + "/data/migrations"
    },
    seeds: {
      directory: __dirname + "/data/seeds"
    }
  },
  testing: {
    client: "sqlite3",
    connection: {
      filename: "./data/planets.db3"
    },
    useNullAsDefault: true,
    migrations: {
      directory: "./data/migrations"
    },
    seeds: {
      directory: "./data/seeds"
    },
    pool: {
      afterCreate: (connection, done) => {
        connection.run("PRAGMA foreign_keys = ON", done);
      }
    }
  }
};