text: 
  const mongoose = require('mongoose');
  const mongoosePaginate = require('mongoose-paginate-v2');
  const idPlugin = require('mongoose-id');
  
  const rocketSchema = new mongoose.Schema({
    name: {
      type: String,
    },
    type: {
      type: String,
    },
    active: {
      type: Boolean,
    },
    stages: {
      type: Number,
    },
    boosters: {
      type: Number,
    },
    cost_per_launch: {
      type: Number,
    },
    success_rate_pct: {
      type: Number,
    },
    first_flight: {
      type: String,
    },
    country: {
      type: String,
    },
    company: {
      type: String,
    },
    height: {
      meters: {
        type: Number,
      },
      feet: {
        type: Number,
      },
    },
    diameter: {
      meters: {
        type: Number,
      },
      feet: {
        type: Number,
      },
    },
    mass: {
      kg: {
        type: Number,
      },
      lb: {
        type: Number,
      },
    },
    payload_weights: {
      type: [
        mongoose.Mixed,
      ],
    },
    first_stage: {
      reusable: {
        type: Boolean,
      },
      engines: {
        type: Number,
      },
      fuel_amount_tons: {
        type: Number,
      },
      burn_time_sec: {
        type: Number,
      },
      thrust_sea_level: {
        kN: {
          type: Number,
        },
        lbf: {
          type: Number,
        },
      },
      thrust_vacuum: {
        kN: {
          type: Number,
        },
        lbf: {
          type: Number,
        },
      },
    },
    second_stage: {
      reusable: {
        type: Boolean,
      },
      engines: {
        type: Number,
      },
      fuel_amount_tons: {
        type: Number,
      },
      burn_time_sec: {
        type: Number,
      },
      thrust: {
        kN: {
          type: Number,
        },
        lbf: {
          type: Number,
        },
      },
      payloads: {
        option_1: {
          type: String,
        },
        composite_fairing: {
          height: {
            meters: {
              type: Number,
            },
            feet: {
              type: Number,
            },
          },
          diameter: {
            meters: {
              type: Number,
            },
            feet: {
              type: Number,
            },
          },
        },
      },
    },
    engines: {
      number: {
        type: Number,
      },
      type: {
        type: String,
      },
      version: {
        type: String,
      },
      layout: {
        type: String,
      },
      isp: {
        sea_level: {
          type: Number,
        },
        vacuum: {
          type: Number,
        },
      },
      engine_loss_max: {
        type: Number,
      },
      propellant_1: {
        type: String,
      },
      propellant_2: {
        type: String,
      },
      thrust_sea_level: {
        kN: {
          type: Number,
        },
        lbf: {
          type: Number,
        },
      },
      thrust_vacuum: {
        kN: {
          type: Number,
        },
        lbf: {
          type: Number,
        },
      },
      thrust_to_weight: {
        type: Number,
      },
    },
    landing_legs: {
      number: {
        type: Number,
      },
      material: {
        type: mongoose.Mixed,
      },
    },
    flickr_images: {
      type: [
        String,
      ],
    },
    wikipedia: {
      type: String,
    },
    description: {
      type: String,
    },
  }, { autoCreate: true });
  
  rocketSchema.plugin(mongoosePaginate);
  rocketSchema.plugin(idPlugin);
  
  const Rocket = mongoose.model('Rocket', rocketSchema);
  
  module.exports = Rocket;
  