Create a library to read and manage TSV files created by the FreeStyle libre app to better understand and visualize the report data

npm install

Mount a local web-server (for example using node's http-server) and browse to the index.html (for example http://127.0.0.1:8080/index.html) to open the main view that lets you import a tsv file generated from the Abbott FreeStyle Libre app (or use the test.tsv example file) and visualize the data in the HighChart chart.

var reader = new FileReader();
reader.readAsText(file);
reader.onload = function() {
    var report = FreeStyleLibreLib.parseReport(reader.result);
}

This is the format of the exported file generated by the Abbot FreeStyle Libre app when running the File->Export Data menu option with the meter connected.

• Line 1:
  • Patient name
    • this non-standard tsv line, break standard parsers
    • (Is this line optional?)
• Line 2:
  • Headers
    • ID
    • Time (Is YYYY/MM/DD HH:mm the only possible date format?)
    • Record Type
      • 0: Historic Glucose
      • 1: Scan Glucose
      • 2: ?
      • 3: ?
      • 4: Insulin (Need to read if Rapid-Acting Insulin (units) or Long-Acting Insulin (units) has data to know witch is witch, probably appies to the "non numeric" ones too, but is not tested)
      • 5: Food
      • 6: Date change (Not implemented)
      • Is there anything beyond type 6?
    • Historic Glucose (mmol/L)
      • Does the column name change if the meter units are not mmol/L?
    • Scan Glucose (mmol/L)
      • Does the column name change if the meter units are not mmol/L?
    • Non-numeric Rapid-Acting Insulin
    • Rapid-Acting Insulin (units)
    • Non-numeric Food
    • Carbohydrates (grams)
    • Non-numeric Long-Acting Insulin
    • Long-Acting Insulin (units)
    • Notes
    • Strip Glucose (mmol/L)
      • Does the column name change if the meter units are not mmol/L?
    • Ketone (mmol/L)
      • Does the column name change if the meter units are not mmol/L?
    • Meal Insulin (units)
    • Correction Insulin (units)
      • It seems that this is not used for insulin units
    • User Change Insulin (units)
      • It seems that this is not used for insulin units
    • Previous Time
      • For Record type 6
    • Updated Time
      • For Record type 6
    • Are these all the possible columns?
    • Can the columns have another name if the meter or app is set up in other language?
• Lines > 2
  • Data