lambda-stash/handlers/convertString.js

AWS Lambda script for shipping data from S3 or other cloud data sources to data stores, like Elasticsearch

var _ = require('lodash');

exports.process = function(config) {
  console.log('convertString');
  if (!_.isArray(config.data)) {
    return Promise.reject('Non-array data passed to convertString.');
  }

  config.data = _.map(config.data, function(datum) {
    var parts = _.map(datum, function(value, key) {
      key = String(key).replace('-', '_').replace(/\W/g, '');
      value = String(value).replace(/\n/g, ' ');
      return key + '="' + value + '"';
    });

    if (config.string && config.string.prefix) {
      parts.unshift(config.string.prefix);
    }

    if (config.string && config.string.suffix) {
      parts.push(config.string.suffix);
    }

    return parts.join(' ') + '\n';
  }).join('');

  return Promise.resolve(config);
};