How to get total web page response time from a HAR file?

Question

In the following image, I want the total response time from the webpage. I can\'t seem to find it in the file sample HAR file, i.e. 38.79s in this case. Does anyone know how

Answer 1

Here's a Java function that returns page load time. In addition, it allows you to parse corrupted HAR files that have missing elements or other violations to the specification. More info. on HarLib here.

public long calculatePageLoadTime(String filename) {
    File file = new File("c:\\" + filename);
    HarFileReader fileReader = new HarFileReader();
    long pageLoadTime = 0;
    try {
        //Catch missing elements or other violations to HAR specification.
        //You can still read most of a file even if some parts are corrupted.
        List warnings = new ArrayList();
        HarLog log = fileReader.readHarFile(file, warnings);
        for (HarWarning warning : warnings)
            System.out.println("File:" + filename + " - Warning:" + warning);

        //Get page load start time
        HarPages pages = log.getPages();
        HarPage page = pages.getPages().get(0);
        long startTime = page.getStartedDateTime().getTime();

        //Traverse entries and determine the latest request end time
        long loadTime = 0;            
        HarEntries entries = log.getEntries();
        List entryList = entries.getEntries();
        for (HarEntry entry : entryList)
        {
            long entryLoadTime = entry.getStartedDateTime().getTime() + entry.getTime();
            if(entryLoadTime > loadTime){
                loadTime = entryLoadTime;
            }
        }

        pageLoadTime = loadTime - startTime;
    }
    catch (JsonParseException e)
    {
      e.printStackTrace();
      System.out.println("Parsing error during test");
    }
    catch (IOException e)
    {
      e.printStackTrace();
      System.out.println("IO exception during test");
    }

    return pageLoadTime;
}