new changes - Adroit JSON to JST

[Ethan-beca]

this converts the data file from Adroit VW logger from JSON format to eagle JST format.

[abonstu]

cheers for contributing a converter ethan :)

we encourage converters to be as flexible as possible, i.e. rather than being constrained to a single frequency sensor with a single sample, its useful to have one converter that handles all permutations of a payload format.

[abonstu]

consider using the 'name' json field to define the timeseries name

[abonstu]

take a look at the sample-with-zone converter (this includes the timezone configured by the user)

[abonstu]

consider using the 'unit.symbol' json field to define the timeseries units

[Ethan-beca]

Hi Jarrah, thanks for your comments, code has been modified as below:

import { JtsDocument, TimeSeries } from '@eagle-io/timeseries';
import { Converter } from '../../converter';
import moment from 'moment-timezone';

/**

• Convert the JSON data from Adroit VW Logger
• example: https://adroitplatform.com/api/points/34404/feeds/54553
  */
  export class AdroitVWJsonConverter extends Converter {
  convert(input: Buffer): JtsDocument {

// Parse the input buffer to JSON object
const record = JSON.parse(input.toString());

// Convert the epoch time to a moment object

let timestamp = moment.utc(record.lastUpdate).tz('Pacific/Auckland').toDate();

 // Create a TimeSeries object
const series1 = new TimeSeries({ name: record.name });


// Convert the value to a number
const value = Number(record.value);  

// Insert the time series data
series1.insert({ timestamp, value });

// Return the JTS document
return new JtsDocument({ series: [series1] });

}
}

[abonstu]

please update this pull request with your changes for review.

note: take a look at line 17 of lib/sample-with-zone/sample-with-zone-converter.ts, this demonstrates using the timezone configured on the data source to convert data to UTC.