@riturajgc/upload-manager-service/src/models/App.js

Upload manager service for bitnudge

const { getMongoose } = require('../config/mongoose');
const mongooseOriginal = require('mongoose');
const StorageTypes = require('../lib/utils/StorageTypes');
const Storage = require('../lib/storage/Storage');
const Adapter = require('../lib/storage/Adapter');

class App {
  constructor( type ) {
    if(!type){
      throw new Error('Storage type is required to instantiate upload-manager-service');
    }
    if(!Object.values(StorageTypes.list).includes(type)){
      throw new Error('Incorrect storage type is provided');
    }
    if(this.STORAGE_TYPE === StorageTypes.list.INFS || this.STORAGE_TYPE === StorageTypes.list.INS3){
      throw new Error(`Storage type ${this.STORAGE_TYPE} is not supported`);
    }

    this.STORAGE_TYPE = type;
    this.mongoose = mongooseOriginal;

    const StorageModel = require('../models/StorageModel');
    const model = StorageModel(this.STORAGE_TYPE, this.mongoose);
    let storage;
    if(this.STORAGE_TYPE === StorageTypes.list.INDB) {
      storage = new Storage.DB({ model })
    }else if(this.STORAGE_TYPE === StorageTypes.list.INFS) {
      storage = new Storage.FS({ model })
    }else if(this.STORAGE_TYPE === StorageTypes.list.INS3) {
      storage = new Storage.S3({ model })
    }

    this.adapter = new Adapter({ type: storage });

  }
  setMongoose({dbURL }) {
    this.mongoose = getMongoose({ dbURL});
  }
}

module.exports = App;