jastax/gpx2fit

GPX to FIT

Fit file encoder.

Install

npm i gpx2fit

usage

node

import {gpx2fitEncoder} from 'gpx2fit'
import {outputFile} from 'gpx2fit/lib/output'

gpx2fitEncoder(gpxString).then(encoder => outputFile(encoder, 'fileName'));

web

  import {gpx2fitEncoder} from 'gpx2fit'
  gpx2fitEncoder(gpxString).then(encoder => {
    const blob = encoder.createBlob()
    const url = URL.createObjectURL(blob);
    const anchorElement = document.createElement('a');
    anchorElement.download = `test.fit`;
    anchorElement.href = url;
    anchorElement.click();
  })

API

gpx2fitEncoder: (gpxString: string): Promise

import {gpx2fitEncoder} from 'gpx2fit'
import {outputFile} from 'gpx2fit/lib/output'

gpx2fitEncoder(gpxString).then(encoder => outputFile(encoder, 'file'))

FitEncoder

• writeMessage: (name: string, values: Record<string, any>) => void;

import {FitEncoder} from 'gpx2fit'

const encoder = new FitEncoder()
encoder.writeMessage('record', {
    altitude: 31.6,
    cadence: 67,
    distance: 6.27,
    heart_rate: 129,
    position_lat: 39.836671,
    position_long: 116.5075257,
    speed: 5.963,
    temperature: 20,
    timestamp: 1620512424000,
  })

• createBlob: () => Blob; only web

• dataArrayBuffer: ArrayBuffer[]; fit file ArrayBuffer;

• header: ArrayBuffer

• trailer: ArrayBuffer

• msgBuffers: ArrayBuffer[]

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original author：
Nick Holloway