cloud-red/src/extra/storage-ephemeral/index.js

Serverless Node-RED for your cloud integration needs

var fs = require('fs');
var when = require('when');

let settings;
let basePath;
let flowFilePath;

let storageEphemeral = {
  init: function(_settings) {
    settings = _settings;
    basePath = settings.basePath;
    flowFilePath = settings.flowFilePath;
    return when.promise(function(resolve, reject) {
      if (fs.existsSync(`${flowFilePath}`)) {
        console.log(`[ephemeral-storage] Flow found: ${flowFilePath}`);
        resolve();
      } else {
        reject(`[ephemeral-storage] Flow not found in: ${flowFilePath}`);
      }
    });
  },
  getFlows: function() {
    return this.getData(`${flowFilePath}`);
  },
  saveFlows: function(flow) {
    return when.promise(function(resolve, reject) {
      console.log(
        '[ephemeral-storage] Saving flow! - WARNING!! - This should not been invoked'
      );
      resolve();
    });
  },
  getCredentials: function() {
    return when.promise(function(resolve, reject) {
      console.log(
        '[ephemeral-storage] Get Credentials! - WARNING!! - This should not been invoked'
      );
      resolve({});
    });
  },
  saveCredentials: function() {
    return when.promise(function(resolve, reject) {
      console.log(
        '[ephemeral-storage] Saving Credentials! - WARNING!! - This should not been invoked'
      );
      resolve();
    });
  },
  getSettings: function() {
    return this.getData(`${basePath}/settings.json`);
  },
  saveSettings: function() {
    return when.promise(function(resolve, reject) {
      console.log(
        '[ephemeral-storage] Saving Settings! - WARNING!! - This should not been invoked'
      );
      resolve();
    });
  },
  getLibraryEntry: function(type, path) {
    return when.promise(function(resolve, reject) {
      console.log(
        '[ephemeral-storage] Get Library Entry! - WARNING!! - This should not been invoked'
      );
      resolve();
    });
  },
  saveLibraryEntry: function(type, path, meta, body) {
    return when.promise(function(resolve, reject) {
      console.log(
        '[ephemeral-storage] Save Library Entry! - WARNING!! - This should not been invoked'
      );
      resolve();
    });
  },
  getData: function(entryType) {
    return when.promise(function(resolve, reject) {
      fs.readFile(entryType, 'utf8', function(err, flowContent) {
        if (err) {
          reject(
            `[ephemeral-storage] Error found while reading the file: ${entryType}`
          );
        }
        let flowObject = JSON.parse(flowContent);
        // console.log(flowObject);
        resolve(flowObject);
      });
    });
  }
};
module.exports = storageEphemeral;